AxHost Class

Definition

Wraps ActiveX controls and exposes them as fully featured Windows Forms controls.

public ref class AxHost abstract : System::Windows::Forms::Control, System::ComponentModel::ICustomTypeDescriptor, System::ComponentModel::ISupportInitialize
[System.Runtime.InteropServices.ComVisible(true)]
[System.Runtime.InteropServices.ClassInterface(System.Runtime.InteropServices.ClassInterfaceType.AutoDispatch)]
public abstract class AxHost : System.Windows.Forms.Control, System.ComponentModel.ICustomTypeDescriptor, System.ComponentModel.ISupportInitialize
type AxHost = class
    inherit Control
    interface ISupportInitialize
    interface ICustomTypeDescriptor
Public MustInherit Class AxHost
Inherits Control
Implements ICustomTypeDescriptor, ISupportInitialize
Inheritance
Attributes
Implements

Examples

The following code example overrides the constructor, and the SetAboutBoxDelegate and AttachInterfaces methods of an AxHost derived class that wraps the Microsoft Masked Edit ActiveX Control. This code requires that you have created the generated source code by running the AxImp.exe on the MSMask32.ocx file with the /source switch to generate the wrapper class to be edited. This code is only shown in C# syntax because that is the only language output by the AxImp.exe.

public AxMaskEdBox()
    :
  base("c932ba85-4374-101b-a56c-00aa003668dc") // The ActiveX control's class identifier.
{
    // Make the AboutBox method the about box delegate.
    this.SetAboutBoxDelegate(new AboutBoxDelegate(AboutBox));
}

public virtual void AboutBox()
{
    // If the instance of the ActiveX control is null when the AboutBox method 
    // is called, raise an InvalidActiveXStateException exception.
    if ((this.ocx == null))
    {
        throw new System.Windows.Forms.AxHost.InvalidActiveXStateException(
          "AboutBox", System.Windows.Forms.AxHost.ActiveXInvokeKind.MethodInvoke);
    }
    // Show the about box if the ActiveX control has one.
    if (this.HasAboutBox)
    {
        this.ocx.AboutBox();
    }
}

protected override void AttachInterfaces()
{
    try
    {
        // Attach the IMSMask interface to the ActiveX control.
        this.ocx = ((MSMask.IMSMask)(this.GetOcx()));
    }
    catch (System.Exception ex)
    {
        System.Console.WriteLine(ex.Message);
    }
}

Remarks

You typically do not use the AxHost class directly. You can use the Aximp.exe (Windows Forms ActiveX Control Importer) to generate the wrappers that extend AxHost.

The ActiveX Control Importer generates a class that is derived from the AxHost class, and compiles it into a library file (DLL) that can be added as a reference to your application. Alternatively, you can use the /source switch with the ActiveX Control Importer and a C# file is generated for your AxHost derived class. You can then make changes to the code and recompile it into a library file.

Note

If the name of a member of the ActiveX control matches a name defined in the .NET Framework, then the ActiveX Control Importer will prefix the member name with "Ctl" when it creates the AxHost derived class. For example, if your ActiveX control has a member named "Layout", it is renamed "CtlLayout" in the AxHost derived class because the Layout event is defined within the .NET Framework.

Most of the common properties of the AxHost class are only valid and used if the underlying ActiveX control exposes those properties. A few examples of the common properties are BackColor, Cursor, Font, and Text.

Note

If you are using Visual Studio as your Windows Forms design environment, you can make an ActiveX control available to your application by adding the ActiveX control to your Toolbox. To accomplish this, right-click the Toolbox, select Customize Toolbox, then browse to the ActiveX control's.ocx file. For more information, see "Adding ActiveX Controls to Windows Forms" in the Visual Studio documentation.

Constructors

AxHost(String)

Initializes a new instance of the AxHost class, wrapping the ActiveX control indicated by the specified CLSID.

AxHost(String, Int32)

Initializes a new instance of the AxHost class, wrapping the ActiveX control indicated by the specified CLSID, and using the shortcut-menu behavior indicated by the specified flags value.

Properties

AccessibilityObject

Gets the AccessibleObject assigned to the control.

(Inherited from Control)
AccessibleDefaultActionDescription

Gets or sets the default action description of the control for use by accessibility client applications.

(Inherited from Control)
AccessibleDescription

Gets or sets the description of the control used by accessibility client applications.

(Inherited from Control)
AccessibleName

Gets or sets the name of the control used by accessibility client applications.

(Inherited from Control)
AccessibleRole

Gets or sets the accessible role of the control.

(Inherited from Control)
AllowDrop

Gets or sets a value indicating whether the control can accept data that the user drags onto it.

(Inherited from Control)
Anchor

Gets or sets the edges of the container to which a control is bound and determines how a control is resized with its parent.

(Inherited from Control)
AutoScrollOffset

Gets or sets where this control is scrolled to in ScrollControlIntoView(Control).

(Inherited from Control)
AutoSize

This property is not relevant for this class.

(Inherited from Control)
BackColor

This member is not meaningful for this control.

BackgroundImage

This property is not relevant for this class.

BackgroundImageLayout

This property is not relevant for this class.

BindingContext

Gets or sets the BindingContext for the control.

(Inherited from Control)
Bottom

Gets the distance, in pixels, between the bottom edge of the control and the top edge of its container's client area.

(Inherited from Control)
Bounds

Gets or sets the size and location of the control including its nonclient elements, in pixels, relative to the parent control.

(Inherited from Control)
CanEnableIme

Gets a value indicating whether the ImeMode property can be set to an active value, to enable IME support.

(Inherited from Control)
CanFocus

Gets a value indicating whether the control can receive focus.

(Inherited from Control)
CanRaiseEvents

Determines if events can be raised on the control.

(Inherited from Control)
CanSelect

Gets a value indicating whether the control can be selected.

(Inherited from Control)
Capture

Gets or sets a value indicating whether the control has captured the mouse.

(Inherited from Control)
CausesValidation

Gets or sets a value indicating whether the control causes validation to be performed on any controls that require validation when it receives focus.

(Inherited from Control)
ClientRectangle

Gets the rectangle that represents the client area of the control.

(Inherited from Control)
ClientSize

Gets or sets the height and width of the client area of the control.

(Inherited from Control)
CompanyName

Gets the name of the company or creator of the application containing the control.

(Inherited from Control)
Container

Gets the IContainer that contains the Component.

(Inherited from Component)
ContainingControl

Gets or sets the control containing the ActiveX control.

ContainsFocus

Gets a value indicating whether the control, or one of its child controls, currently has the input focus.

(Inherited from Control)
ContextMenu

This property is not relevant for this class.

ContextMenuStrip

Gets or sets the ContextMenuStrip associated with this control.

(Inherited from Control)
Controls

Gets the collection of controls contained within the control.

(Inherited from Control)
Created

Gets a value indicating whether the control has been created.

(Inherited from Control)
CreateParams

Gets the required creation parameters when the control handle is created.

Cursor

This property is not relevant for this class.

DataBindings

Gets the data bindings for the control.

(Inherited from Control)
DefaultCursor

Gets or sets the default cursor for the control.

(Inherited from Control)
DefaultImeMode

Gets the default Input Method Editor (IME) mode supported by the control.

(Inherited from Control)
DefaultMargin

Gets the space, in pixels, that is specified by default between controls.

(Inherited from Control)
DefaultMaximumSize

Gets the length and height, in pixels, that is specified as the default maximum size of a control.

(Inherited from Control)
DefaultMinimumSize

Gets the length and height, in pixels, that is specified as the default minimum size of a control.

(Inherited from Control)
DefaultPadding

Gets the internal spacing, in pixels, of the contents of a control.

(Inherited from Control)
DefaultSize

Gets the default size of the control.

DesignMode

Gets a value that indicates whether the Component is currently in design mode.

(Inherited from Component)
DeviceDpi

Gets the DPI value for the display device where the control is currently being displayed.

(Inherited from Control)
DisplayRectangle

Gets the rectangle that represents the display area of the control.

(Inherited from Control)
Disposing

Gets a value indicating whether the base Control class is in the process of disposing.

(Inherited from Control)
Dock

Gets or sets which control borders are docked to its parent control and determines how a control is resized with its parent.

(Inherited from Control)
DoubleBuffered

Gets or sets a value indicating whether this control should redraw its surface using a secondary buffer to reduce or prevent flicker.

(Inherited from Control)
EditMode

Returns a value that indicates whether the hosted control is in edit mode.

Enabled

This property is not relevant for this class.

Events

Gets the list of event handlers that are attached to this Component.

(Inherited from Component)
Focused

Gets a value indicating whether the control has input focus.

(Inherited from Control)
Font

This property is not relevant for this class.

FontHeight

Gets or sets the height of the font of the control.

(Inherited from Control)
ForeColor

This property is not relevant for this class.

Handle

Gets the window handle that the control is bound to.

(Inherited from Control)
HasAboutBox

Gets a value indicating whether the ActiveX control has an About dialog box.

HasChildren

Gets a value indicating whether the control contains one or more child controls.

(Inherited from Control)
Height

Gets or sets the height of the control.

(Inherited from Control)
ImeMode

This property is not relevant for this class.

ImeModeBase

Gets or sets the IME mode of a control.

(Inherited from Control)
InvokeRequired

Gets a value indicating whether the caller must call an invoke method when making method calls to the control because the caller is on a different thread than the one the control was created on.

(Inherited from Control)
IsAccessible

Gets or sets a value indicating whether the control is visible to accessibility applications.

(Inherited from Control)
IsDisposed

Gets a value indicating whether the control has been disposed of.

(Inherited from Control)
IsHandleCreated

Gets a value indicating whether the control has a handle associated with it.

(Inherited from Control)
IsMirrored

Gets a value indicating whether the control is mirrored.

(Inherited from Control)
LayoutEngine

Gets a cached instance of the control's layout engine.

(Inherited from Control)
Left

Gets or sets the distance, in pixels, between the left edge of the control and the left edge of its container's client area.

(Inherited from Control)
Location

Gets or sets the coordinates of the upper-left corner of the control relative to the upper-left corner of its container.

(Inherited from Control)
Margin

Gets or sets the space between controls.

(Inherited from Control)
MaximumSize

Gets or sets the size that is the upper limit that GetPreferredSize(Size) can specify.

(Inherited from Control)
MinimumSize

Gets or sets the size that is the lower limit that GetPreferredSize(Size) can specify.

(Inherited from Control)
Name

Gets or sets the name of the control.

(Inherited from Control)
OcxState

Gets or sets the persisted state of the ActiveX control.

Padding

Gets or sets padding within the control.

(Inherited from Control)
Parent

Gets or sets the parent container of the control.

(Inherited from Control)
PreferredSize

Gets the size of a rectangular area into which the control can fit.

(Inherited from Control)
ProductName

Gets the product name of the assembly containing the control.

(Inherited from Control)
ProductVersion

Gets the version of the assembly containing the control.

(Inherited from Control)
RecreatingHandle

Gets a value indicating whether the control is currently re-creating its handle.

(Inherited from Control)
Region

Gets or sets the window region associated with the control.

(Inherited from Control)
RenderRightToLeft

This property is now obsolete.

(Inherited from Control)
ResizeRedraw

Gets or sets a value indicating whether the control redraws itself when resized.

(Inherited from Control)
Right

Gets the distance, in pixels, between the right edge of the control and the left edge of its container's client area.

(Inherited from Control)
RightToLeft

This property is not relevant for this class.

ScaleChildren

Gets a value that determines the scaling of child controls.

(Inherited from Control)
ShowFocusCues

Gets a value indicating whether the control should display focus rectangles.

(Inherited from Control)
ShowKeyboardCues

Gets a value indicating whether the user interface is in the appropriate state to show or hide keyboard accelerators.

(Inherited from Control)
Site

Gets or sets the site of the control.

Size

Gets or sets the height and width of the control.

(Inherited from Control)
TabIndex

Gets or sets the tab order of the control within its container.

(Inherited from Control)
TabStop

Gets or sets a value indicating whether the user can give the focus to this control using the TAB key.

(Inherited from Control)
Tag

Gets or sets the object that contains data about the control.

(Inherited from Control)
Text

This property is not relevant for this class.

Top

Gets or sets the distance, in pixels, between the top edge of the control and the top edge of its container's client area.

(Inherited from Control)
TopLevelControl

Gets the parent control that is not parented by another Windows Forms control. Typically, this is the outermost Form that the control is contained in.

(Inherited from Control)
UseWaitCursor

Gets or sets a value indicating whether to use the wait cursor for the current control and all child controls.

(Inherited from Control)
Visible

Gets or sets a value indicating whether the control and all its child controls are displayed.

(Inherited from Control)
Width

Gets or sets the width of the control.

(Inherited from Control)
WindowTarget

This property is not relevant for this class.

(Inherited from Control)

Methods

AccessibilityNotifyClients(AccessibleEvents, Int32)

Notifies the accessibility client applications of the specified AccessibleEvents for the specified child control.

(Inherited from Control)
AccessibilityNotifyClients(AccessibleEvents, Int32, Int32)

Notifies the accessibility client applications of the specified AccessibleEvents for the specified child control .

(Inherited from Control)
AttachInterfaces()

When overridden in a derived class, attaches interfaces to the underlying ActiveX control.

BeginInit()

Begins the initialization of the ActiveX control.

BeginInvoke(Delegate)

Executes the specified delegate asynchronously on the thread that the control's underlying handle was created on.

(Inherited from Control)
BeginInvoke(Delegate, Object[])

Executes the specified delegate asynchronously with the specified arguments, on the thread that the control's underlying handle was created on.

(Inherited from Control)
BringToFront()

Brings the control to the front of the z-order.

(Inherited from Control)
Contains(Control)

Retrieves a value indicating whether the specified control is a child of the control.

(Inherited from Control)
CreateAccessibilityInstance()

Creates a new accessibility object for the control.

(Inherited from Control)
CreateControl()

Forces the creation of the visible control, including the creation of the handle and any visible child controls.

(Inherited from Control)
CreateControlsInstance()

Creates a new instance of the control collection for the control.

(Inherited from Control)
CreateGraphics()

Creates the Graphics for the control.

(Inherited from Control)
CreateHandle()

Creates a handle for the control.

CreateInstanceCore(Guid)

Called by the system to create the ActiveX control.

CreateObjRef(Type)

Creates an object that contains all the relevant information required to generate a proxy used to communicate with a remote object.

(Inherited from MarshalByRefObject)
CreateSink()

Called by the control to prepare it for listening to events.

DefWndProc(Message)

Sends the specified message to the default window procedure.

(Inherited from Control)
DestroyHandle()

Destroys the handle associated with the control.

DetachSink()

Called by the control when it stops listening to events.

Dispose()

Releases all resources used by the Component.

(Inherited from Component)
Dispose(Boolean)

Releases the unmanaged resources used by the Control and its child controls and optionally releases the managed resources.

DoDragDrop(Object, DragDropEffects)

Begins a drag-and-drop operation.

(Inherited from Control)
DoVerb(Int32)

Requests that an object perform an action in response to an end-user's action.

DrawToBitmap(Bitmap, Rectangle)

This method is not supported by this control.

EndInit()

Ends the initialization of an ActiveX control.

EndInvoke(IAsyncResult)

Retrieves the return value of the asynchronous operation represented by the IAsyncResult passed.

(Inherited from Control)
Equals(Object)

Determines whether the specified object is equal to the current object.

(Inherited from Object)
FindForm()

Retrieves the form that the control is on.

(Inherited from Control)
Focus()

Sets input focus to the control.

(Inherited from Control)
GetAccessibilityObjectById(Int32)

Retrieves the specified AccessibleObject.

(Inherited from Control)
GetAutoSizeMode()

Retrieves a value indicating how a control will behave when its AutoSize property is enabled.

(Inherited from Control)
GetChildAtPoint(Point)

Retrieves the child control that is located at the specified coordinates.

(Inherited from Control)
GetChildAtPoint(Point, GetChildAtPointSkip)

Retrieves the child control that is located at the specified coordinates, specifying whether to ignore child controls of a certain type.

(Inherited from Control)
GetColorFromOleColor(UInt32)

Returns a Color structure that corresponds to the specified OLE color value.

GetContainerControl()

Returns the next ContainerControl up the control's chain of parent controls.

(Inherited from Control)
GetFontFromIFont(Object)

Returns a Font created from the specified OLE IFont object.

GetFontFromIFontDisp(Object)

Returns a Font created from the specified OLE IFontDisp object.

GetHashCode()

Serves as the default hash function.

(Inherited from Object)
GetIFontDispFromFont(Font)

Returns an OLE IFontDisp object created from the specified Font object.

GetIFontFromFont(Font)

Returns an OLE IFont object created from the specified Font object.

GetIPictureDispFromPicture(Image)

Returns an OLE IPictureDisp object corresponding to the specified Image.

GetIPictureFromCursor(Cursor)

Returns an OLE IPicture object corresponding to the specified Cursor.

GetIPictureFromPicture(Image)

Returns an OLE IPicture object corresponding to the specified Image.

GetLifetimeService()

Retrieves the current lifetime service object that controls the lifetime policy for this instance.

(Inherited from MarshalByRefObject)
GetNextControl(Control, Boolean)

Retrieves the next control forward or back in the tab order of child controls.

(Inherited from Control)
GetOADateFromTime(DateTime)

Returns an OLE Automation date that corresponds to the specified DateTime structure.

GetOcx()

Retrieves a reference to the underlying ActiveX control.

GetOleColorFromColor(Color)

Returns an OLE color value that corresponds to the specified Color structure.

GetPictureFromIPicture(Object)

Returns an Image corresponding to the specified OLE IPicture object.

GetPictureFromIPictureDisp(Object)

Returns an Image corresponding to the specified OLE IPictureDisp object.

GetPreferredSize(Size)

Retrieves the size of a rectangular area into which a control can be fitted.

(Inherited from Control)
GetScaledBounds(Rectangle, SizeF, BoundsSpecified)

Called by the system to retrieve the current bounds of the ActiveX control.

GetService(Type)

Returns an object that represents a service provided by the Component or by its Container.

(Inherited from Component)
GetStyle(ControlStyles)

Retrieves the value of the specified control style bit for the control.

(Inherited from Control)
GetTimeFromOADate(Double)

Returns a DateTime structure that corresponds to the specified OLE Automation date.

GetTopLevel()

Determines if the control is a top-level control.

(Inherited from Control)
GetType()

Gets the Type of the current instance.

(Inherited from Object)
HasPropertyPages()

Determines if the ActiveX control has a property page.

Hide()

Conceals the control from the user.

(Inherited from Control)
InitializeLifetimeService()

Obtains a lifetime service object to control the lifetime policy for this instance.

(Inherited from MarshalByRefObject)
InitLayout()

Called after the control has been added to another container.

(Inherited from Control)
Invalidate()

Invalidates the entire surface of the control and causes the control to be redrawn.

(Inherited from Control)
Invalidate(Boolean)

Invalidates a specific region of the control and causes a paint message to be sent to the control. Optionally, invalidates the child controls assigned to the control.

(Inherited from Control)
Invalidate(Rectangle)

Invalidates the specified region of the control (adds it to the control's update region, which is the area that will be repainted at the next paint operation), and causes a paint message to be sent to the control.

(Inherited from Control)
Invalidate(Rectangle, Boolean)

Invalidates the specified region of the control (adds it to the control's update region, which is the area that will be repainted at the next paint operation), and causes a paint message to be sent to the control. Optionally, invalidates the child controls assigned to the control.

(Inherited from Control)
Invalidate(Region)

Invalidates the specified region of the control (adds it to the control's update region, which is the area that will be repainted at the next paint operation), and causes a paint message to be sent to the control.

(Inherited from Control)
Invalidate(Region, Boolean)

Invalidates the specified region of the control (adds it to the control's update region, which is the area that will be repainted at the next paint operation), and causes a paint message to be sent to the control. Optionally, invalidates the child controls assigned to the control.

(Inherited from Control)
Invoke(Delegate)

Executes the specified delegate on the thread that owns the control's underlying window handle.

(Inherited from Control)
Invoke(Delegate, Object[])

Executes the specified delegate, on the thread that owns the control's underlying window handle, with the specified list of arguments.

(Inherited from Control)
InvokeEditMode()

Attempts to activate the editing mode of the hosted control.

InvokeGotFocus(Control, EventArgs)

Raises the GotFocus event for the specified control.

(Inherited from Control)
InvokeLostFocus(Control, EventArgs)

Raises the LostFocus event for the specified control.

(Inherited from Control)
InvokeOnClick(Control, EventArgs)

Raises the Click event for the specified control.

(Inherited from Control)
InvokePaint(Control, PaintEventArgs)

Raises the Paint event for the specified control.

(Inherited from Control)
InvokePaintBackground(Control, PaintEventArgs)

Raises the PaintBackground event for the specified control.

(Inherited from Control)
IsInputChar(Char)

Determines if a character is an input character that the ActiveX control recognizes.

IsInputKey(Keys)

Determines whether the specified key is a regular input key or a special key that requires preprocessing.

(Inherited from Control)
LogicalToDeviceUnits(Int32)

Converts a Logical DPI value to its equivalent DeviceUnit DPI value.

(Inherited from Control)
LogicalToDeviceUnits(Size)

Transforms a size from logical to device units by scaling it for the current DPI and rounding down to the nearest integer value for width and height.

(Inherited from Control)
MakeDirty()

Announces to the component change service that the AxHost has changed.

MemberwiseClone()

Creates a shallow copy of the current Object.

(Inherited from Object)
MemberwiseClone(Boolean)

Creates a shallow copy of the current MarshalByRefObject object.

(Inherited from MarshalByRefObject)
NotifyInvalidate(Rectangle)

Raises the Invalidated event with a specified region of the control to invalidate.

(Inherited from Control)
OnAutoSizeChanged(EventArgs)

Raises the AutoSizeChanged event.

(Inherited from Control)
OnBackColorChanged(EventArgs)

Raises the BackColorChanged event.

OnBackgroundImageChanged(EventArgs)

Raises the BackgroundImageChanged event.

(Inherited from Control)
OnBackgroundImageLayoutChanged(EventArgs)

Raises the BackgroundImageLayoutChanged event.

(Inherited from Control)
OnBindingContextChanged(EventArgs)

Raises the BindingContextChanged event.

(Inherited from Control)
OnCausesValidationChanged(EventArgs)

Raises the CausesValidationChanged event.

(Inherited from Control)
OnChangeUICues(UICuesEventArgs)

Raises the ChangeUICues event.

(Inherited from Control)
OnClick(EventArgs)

Raises the Click event.

(Inherited from Control)
OnClientSizeChanged(EventArgs)

Raises the ClientSizeChanged event.

(Inherited from Control)
OnContextMenuChanged(EventArgs)

Raises the ContextMenuChanged event.

(Inherited from Control)
OnContextMenuStripChanged(EventArgs)

Raises the ContextMenuStripChanged event.

(Inherited from Control)
OnControlAdded(ControlEventArgs)

Raises the ControlAdded event.

(Inherited from Control)
OnControlRemoved(ControlEventArgs)

Raises the ControlRemoved event.

(Inherited from Control)
OnCreateControl()

Raises the CreateControl() method.

(Inherited from Control)
OnCursorChanged(EventArgs)

Raises the CursorChanged event.

(Inherited from Control)
OnDockChanged(EventArgs)

Raises the DockChanged event.

(Inherited from Control)
OnDoubleClick(EventArgs)

Raises the DoubleClick event.

(Inherited from Control)
OnDpiChangedAfterParent(EventArgs)

Raises the DpiChangedAfterParent event.

(Inherited from Control)
OnDpiChangedBeforeParent(EventArgs)

Raises the DpiChangedBeforeParent event.

(Inherited from Control)
OnDragDrop(DragEventArgs)

Raises the DragDrop event.

(Inherited from Control)
OnDragEnter(DragEventArgs)

Raises the DragEnter event.

(Inherited from Control)
OnDragLeave(EventArgs)

Raises the DragLeave event.

(Inherited from Control)
OnDragOver(DragEventArgs)

Raises the DragOver event.

(Inherited from Control)
OnEnabledChanged(EventArgs)

Raises the EnabledChanged event.

(Inherited from Control)
OnEnter(EventArgs)

Raises the Enter event.

(Inherited from Control)
OnFontChanged(EventArgs)

Raises the FontChanged event.

OnForeColorChanged(EventArgs)

Raises the ForeColorChanged event.

OnGiveFeedback(GiveFeedbackEventArgs)

Raises the GiveFeedback event.

(Inherited from Control)
OnGotFocus(EventArgs)

Raises the GotFocus event.

(Inherited from Control)
OnHandleCreated(EventArgs)

Raises the HandleCreated event.

OnHandleDestroyed(EventArgs)

Raises the HandleDestroyed event.

(Inherited from Control)
OnHelpRequested(HelpEventArgs)

Raises the HelpRequested event.

(Inherited from Control)
OnImeModeChanged(EventArgs)

Raises the ImeModeChanged event.

(Inherited from Control)
OnInPlaceActive()

Called when the control transitions to the in-place active state.

OnInvalidated(InvalidateEventArgs)

Raises the Invalidated event.

(Inherited from Control)
OnKeyDown(KeyEventArgs)

Raises the KeyDown event.

(Inherited from Control)
OnKeyPress(KeyPressEventArgs)

Raises the KeyPress event.

(Inherited from Control)
OnKeyUp(KeyEventArgs)

Raises the KeyUp event.

(Inherited from Control)
OnLayout(LayoutEventArgs)

Raises the Layout event.

(Inherited from Control)
OnLeave(EventArgs)

Raises the Leave event.

(Inherited from Control)
OnLocationChanged(EventArgs)

Raises the LocationChanged event.

(Inherited from Control)
OnLostFocus(EventArgs)

Raises the LostFocus event.

OnMarginChanged(EventArgs)

Raises the MarginChanged event.

(Inherited from Control)
OnMouseCaptureChanged(EventArgs)

Raises the MouseCaptureChanged event.

(Inherited from Control)
OnMouseClick(MouseEventArgs)

Raises the MouseClick event.

(Inherited from Control)
OnMouseDoubleClick(MouseEventArgs)

Raises the MouseDoubleClick event.

(Inherited from Control)
OnMouseDown(MouseEventArgs)

Raises the MouseDown event.

(Inherited from Control)
OnMouseEnter(EventArgs)

Raises the MouseEnter event.

(Inherited from Control)
OnMouseHover(EventArgs)

Raises the MouseHover event.

(Inherited from Control)
OnMouseLeave(EventArgs)

Raises the MouseLeave event.

(Inherited from Control)
OnMouseMove(MouseEventArgs)

Raises the MouseMove event.

(Inherited from Control)
OnMouseUp(MouseEventArgs)

Raises the MouseUp event.

(Inherited from Control)
OnMouseWheel(MouseEventArgs)

Raises the MouseWheel event.

(Inherited from Control)
OnMove(EventArgs)

Raises the Move event.

(Inherited from Control)
OnNotifyMessage(Message)

Notifies the control of Windows messages.

(Inherited from Control)
OnPaddingChanged(EventArgs)

Raises the PaddingChanged event.

(Inherited from Control)
OnPaint(PaintEventArgs)

Raises the Paint event.

(Inherited from Control)
OnPaintBackground(PaintEventArgs)

Paints the background of the control.

(Inherited from Control)
OnParentBackColorChanged(EventArgs)

Raises the BackColorChanged event when the BackColor property value of the control's container changes.

(Inherited from Control)
OnParentBackgroundImageChanged(EventArgs)

Raises the BackgroundImageChanged event when the BackgroundImage property value of the control's container changes.

(Inherited from Control)
OnParentBindingContextChanged(EventArgs)

Raises the BindingContextChanged event when the BindingContext property value of the control's container changes.

(Inherited from Control)
OnParentChanged(EventArgs)

Raises the ParentChanged event.

(Inherited from Control)
OnParentCursorChanged(EventArgs)

Raises the CursorChanged event.

(Inherited from Control)
OnParentEnabledChanged(EventArgs)

Raises the EnabledChanged event when the Enabled property value of the control's container changes.

(Inherited from Control)
OnParentFontChanged(EventArgs)

Raises the FontChanged event when the Font property value of the control's container changes.

(Inherited from Control)
OnParentForeColorChanged(EventArgs)

Raises the ForeColorChanged event when the ForeColor property value of the control's container changes.

(Inherited from Control)
OnParentRightToLeftChanged(EventArgs)

Raises the RightToLeftChanged event when the RightToLeft property value of the control's container changes.

(Inherited from Control)
OnParentVisibleChanged(EventArgs)

Raises the VisibleChanged event when the Visible property value of the control's container changes.

(Inherited from Control)
OnPreviewKeyDown(PreviewKeyDownEventArgs)

Raises the PreviewKeyDown event.

(Inherited from Control)
OnPrint(PaintEventArgs)

Raises the Paint event.

(Inherited from Control)
OnQueryContinueDrag(QueryContinueDragEventArgs)

Raises the QueryContinueDrag event.

(Inherited from Control)
OnRegionChanged(EventArgs)

Raises the RegionChanged event.

(Inherited from Control)
OnResize(EventArgs)

Raises the Resize event.

(Inherited from Control)
OnRightToLeftChanged(EventArgs)

Raises the RightToLeftChanged event.

(Inherited from Control)
OnSizeChanged(EventArgs)

Raises the SizeChanged event.

(Inherited from Control)
OnStyleChanged(EventArgs)

Raises the StyleChanged event.

(Inherited from Control)
OnSystemColorsChanged(EventArgs)

Raises the SystemColorsChanged event.

(Inherited from Control)
OnTabIndexChanged(EventArgs)

Raises the TabIndexChanged event.

(Inherited from Control)
OnTabStopChanged(EventArgs)

Raises the TabStopChanged event.

(Inherited from Control)
OnTextChanged(EventArgs)

Raises the TextChanged event.

(Inherited from Control)
OnValidated(EventArgs)

Raises the Validated event.

(Inherited from Control)
OnValidating(CancelEventArgs)

Raises the Validating event.

(Inherited from Control)
OnVisibleChanged(EventArgs)

Raises the VisibleChanged event.

(Inherited from Control)
PerformLayout()

Forces the control to apply layout logic to all its child controls.

(Inherited from Control)
PerformLayout(Control, String)

Forces the control to apply layout logic to all its child controls.

(Inherited from Control)
PointToClient(Point)

Computes the location of the specified screen point into client coordinates.

(Inherited from Control)
PointToScreen(Point)

Computes the location of the specified client point into screen coordinates.

(Inherited from Control)
PreProcessControlMessage(Message)

Preprocesses keyboard or input messages within the message loop before they are dispatched.

(Inherited from Control)
PreProcessMessage(Message)

Preprocesses keyboard or input messages within the message loop before they are dispatched.

ProcessCmdKey(Message, Keys)

Processes a command key.

(Inherited from Control)
ProcessDialogChar(Char)

Processes a dialog character.

(Inherited from Control)
ProcessDialogKey(Keys)

Processes a dialog key.

ProcessKeyEventArgs(Message)

Processes a key message and generates the appropriate control events.

(Inherited from Control)
ProcessKeyMessage(Message)

Processes a keyboard message.

(Inherited from Control)
ProcessKeyPreview(Message)

Previews a keyboard message.

(Inherited from Control)
ProcessMnemonic(Char)

Processes a mnemonic character.

PropsValid()

Returns a value that indicates whether the hosted control is in a state in which its properties can be accessed.

RaiseDragEvent(Object, DragEventArgs)

Raises the appropriate drag event.

(Inherited from Control)
RaiseKeyEvent(Object, KeyEventArgs)

Raises the appropriate key event.

(Inherited from Control)
RaiseMouseEvent(Object, MouseEventArgs)

Raises the appropriate mouse event.

(Inherited from Control)
RaiseOnMouseDown(Int16, Int16, Int32, Int32)

Raises the MouseDown event using the specified 32-bit signed integers.

RaiseOnMouseDown(Int16, Int16, Single, Single)

Raises the MouseDown event using the specified single-precision floating-point numbers.

RaiseOnMouseDown(Object, Object, Object, Object)

Raises the MouseDown event using the specified objects.

RaiseOnMouseMove(Int16, Int16, Int32, Int32)

Raises the MouseMove event using the specified 32-bit signed integers.

RaiseOnMouseMove(Int16, Int16, Single, Single)

Raises the MouseMove event using the specified single-precision floating-point numbers.

RaiseOnMouseMove(Object, Object, Object, Object)

Raises the MouseMove event using the specified objects.

RaiseOnMouseUp(Int16, Int16, Int32, Int32)

Raises the MouseUp event using the specified 32-bit signed integers.

RaiseOnMouseUp(Int16, Int16, Single, Single)

Raises the MouseUp event using the specified single-precision floating-point numbers.

RaiseOnMouseUp(Object, Object, Object, Object)

Raises the MouseUp event using the specified objects.

RaisePaintEvent(Object, PaintEventArgs)

Raises the appropriate paint event.

(Inherited from Control)
RecreateHandle()

Forces the re-creation of the handle for the control.

(Inherited from Control)
RectangleToClient(Rectangle)

Computes the size and location of the specified screen rectangle in client coordinates.

(Inherited from Control)
RectangleToScreen(Rectangle)

Computes the size and location of the specified client rectangle in screen coordinates.

(Inherited from Control)
Refresh()

Forces the control to invalidate its client area and immediately redraw itself and any child controls.

(Inherited from Control)
RescaleConstantsForDpi(Int32, Int32)

Provides constants for rescaling the control when a DPI change occurs.

(Inherited from Control)
ResetBackColor()

Resets the BackColor property to its default value.

(Inherited from Control)
ResetBindings()

Causes a control bound to the BindingSource to reread all the items in the list and refresh their displayed values.

(Inherited from Control)
ResetCursor()

Resets the Cursor property to its default value.

(Inherited from Control)
ResetFont()

Resets the Font property to its default value.

(Inherited from Control)
ResetForeColor()

Resets the ForeColor property to its default value.

(Inherited from Control)
ResetImeMode()

Resets the ImeMode property to its default value.

(Inherited from Control)
ResetMouseEventArgs()

Resets the control to handle the MouseLeave event.

(Inherited from Control)
ResetRightToLeft()

Resets the RightToLeft property to its default value.

(Inherited from Control)
ResetText()

Resets the Text property to its default value (Empty).

(Inherited from Control)
ResumeLayout()

Resumes usual layout logic.

(Inherited from Control)
ResumeLayout(Boolean)

Resumes usual layout logic, optionally forcing an immediate layout of pending layout requests.

(Inherited from Control)
RtlTranslateAlignment(ContentAlignment)

Converts the specified ContentAlignment to the appropriate ContentAlignment to support right-to-left text.

(Inherited from Control)
RtlTranslateAlignment(HorizontalAlignment)

Converts the specified HorizontalAlignment to the appropriate HorizontalAlignment to support right-to-left text.

(Inherited from Control)
RtlTranslateAlignment(LeftRightAlignment)

Converts the specified LeftRightAlignment to the appropriate LeftRightAlignment to support right-to-left text.

(Inherited from Control)
RtlTranslateContent(ContentAlignment)

Converts the specified ContentAlignment to the appropriate ContentAlignment to support right-to-left text.

(Inherited from Control)
RtlTranslateHorizontal(HorizontalAlignment)

Converts the specified HorizontalAlignment to the appropriate HorizontalAlignment to support right-to-left text.

(Inherited from Control)
RtlTranslateLeftRight(LeftRightAlignment)

Converts the specified LeftRightAlignment to the appropriate LeftRightAlignment to support right-to-left text.

(Inherited from Control)
Scale(Single)

Scales the control and any child controls.

(Inherited from Control)
Scale(Single, Single)

Scales the entire control and any child controls.

(Inherited from Control)
Scale(SizeF)

Scales the control and all child controls by the specified scaling factor.

(Inherited from Control)
ScaleBitmapLogicalToDevice(Bitmap)

Scales a logical bitmap value to it's equivalent device unit value when a DPI change occurs.

(Inherited from Control)
ScaleControl(SizeF, BoundsSpecified)

Scales a control's location, size, padding and margin.

(Inherited from Control)
ScaleCore(Single, Single)

This method is not relevant for this class.

(Inherited from Control)
Select()

Activates the control.

(Inherited from Control)
Select(Boolean, Boolean)

Activates a child control. Optionally specifies the direction in the tab order to select the control from.

(Inherited from Control)
SelectNextControl(Control, Boolean, Boolean, Boolean, Boolean)

Activates the next control.

(Inherited from Control)
SendToBack()

Sends the control to the back of the z-order.

(Inherited from Control)
SetAboutBoxDelegate(AxHost+AboutBoxDelegate)

Calls the ShowAboutBox() method to display the ActiveX control's About dialog box.

SetAutoSizeMode(AutoSizeMode)

Sets a value indicating how a control will behave when its AutoSize property is enabled.

(Inherited from Control)
SetBounds(Int32, Int32, Int32, Int32)

Sets the bounds of the control to the specified location and size.

(Inherited from Control)
SetBounds(Int32, Int32, Int32, Int32, BoundsSpecified)

Sets the specified bounds of the control to the specified location and size.

(Inherited from Control)
SetBoundsCore(Int32, Int32, Int32, Int32, BoundsSpecified)

Performs the work of setting the specified bounds of this control.

SetClientSizeCore(Int32, Int32)

Sets the size of the client area of the control.

(Inherited from Control)
SetStyle(ControlStyles, Boolean)

Sets a specified ControlStyles flag to either true or false.

(Inherited from Control)
SetTopLevel(Boolean)

Sets the control as the top-level control.

(Inherited from Control)
SetVisibleCore(Boolean)

Sets the control to the specified visible state.

Show()

Displays the control to the user.

(Inherited from Control)
ShowAboutBox()

Displays the ActiveX control's About dialog box.

ShowPropertyPages()

Displays the property pages associated with the ActiveX control.

ShowPropertyPages(Control)

Displays the property pages associated with the ActiveX control assigned to the specified parent control.

SizeFromClientSize(Size)

Determines the size of the entire control from the height and width of its client area.

(Inherited from Control)
SuspendLayout()

Temporarily suspends the layout logic for the control.

(Inherited from Control)
ToString()

Returns a String containing the name of the Component, if any. This method should not be overridden.

(Inherited from Component)
Update()

Causes the control to redraw the invalidated regions within its client area.

(Inherited from Control)
UpdateBounds()

Updates the bounds of the control with the current size and location.

(Inherited from Control)
UpdateBounds(Int32, Int32, Int32, Int32)

Updates the bounds of the control with the specified size and location.

(Inherited from Control)
UpdateBounds(Int32, Int32, Int32, Int32, Int32, Int32)

Updates the bounds of the control with the specified size, location, and client size.

(Inherited from Control)
UpdateStyles()

Forces the assigned styles to be reapplied to the control.

(Inherited from Control)
UpdateZOrder()

Updates the control in its parent's z-order.

(Inherited from Control)
WndProc(Message)

Processes Windows messages.

Events

AutoSizeChanged

This event is not relevant for this class.

(Inherited from Control)
BackColorChanged

The BackColorChanged event is not supported by the AxHost class.

BackgroundImageChanged

The BackgroundImageChanged event is not supported by the AxHost class.

BackgroundImageLayoutChanged

This event is not relevant for this class.

BindingContextChanged

The BindingContextChanged event is not supported by the AxHost class.

CausesValidationChanged

Occurs when the value of the CausesValidation property changes.

(Inherited from Control)
ChangeUICues

The ChangeUICues event is not supported by the AxHost class.

Click

The Click event is not supported by the AxHost class.

ClientSizeChanged

Occurs when the value of the ClientSize property changes.

(Inherited from Control)
ContextMenuChanged

The ContextMenuChanged event is not supported by the AxHost class.

ContextMenuStripChanged

Occurs when the value of the ContextMenuStrip property changes.

(Inherited from Control)
ControlAdded

Occurs when a new control is added to the Control.ControlCollection.

(Inherited from Control)
ControlRemoved

Occurs when a control is removed from the Control.ControlCollection.

(Inherited from Control)
CursorChanged

The CursorChanged event is not supported by the AxHost class.

Disposed

Occurs when the component is disposed by a call to the Dispose() method.

(Inherited from Component)
DockChanged

Occurs when the value of the Dock property changes.

(Inherited from Control)
DoubleClick

The DoubleClick event is not supported by the AxHost class.

DpiChangedAfterParent

Occurs when the DPI setting for a control is changed programmatically after the DPI of its parent control or form has changed.

(Inherited from Control)
DpiChangedBeforeParent

Occurs when the DPI setting for a control is changed programmatically before a DPI change event for its parent control or form has occurred.

(Inherited from Control)
DragDrop

The DragDrop event is not supported by the AxHost class.

DragEnter

The DragEnter event is not supported by the AxHost class.

DragLeave

The DragLeave event is not supported by the AxHost class.

DragOver

The DragOver event is not supported by the AxHost class.

EnabledChanged

The EnabledChanged event is not supported by the AxHost class.

Enter

Occurs when the control is entered.

(Inherited from Control)
FontChanged

The FontChanged event is not supported by the AxHost class.

ForeColorChanged

The ForeColorChanged event is not supported by the AxHost class.

GiveFeedback

The GiveFeedback event is not supported by the AxHost class.

GotFocus

Occurs when the control receives focus.

(Inherited from Control)
HandleCreated

Occurs when a handle is created for the control.

(Inherited from Control)
HandleDestroyed

Occurs when the control's handle is in the process of being destroyed.

(Inherited from Control)
HelpRequested

The HelpRequested event is not supported by the AxHost class.

ImeModeChanged

The ImeModeChanged event is not supported by the AxHost class.

Invalidated

Occurs when a control's display requires redrawing.

(Inherited from Control)
KeyDown

The KeyDown event is not supported by the AxHost class.

KeyPress

The KeyPress event is not supported by the AxHost class.

KeyUp

The KeyUp event is not supported by the AxHost class.

Layout

The Layout event is not supported by the AxHost class.

Leave

Occurs when the input focus leaves the control.

(Inherited from Control)
LocationChanged

Occurs when the Location property value has changed.

(Inherited from Control)
LostFocus

Occurs when the control loses focus.

(Inherited from Control)
MarginChanged

Occurs when the control's margin changes.

(Inherited from Control)
MouseCaptureChanged

Occurs when the control loses mouse capture.

(Inherited from Control)
MouseClick

This event is not relevant for this class.

MouseDoubleClick

This event is not relevant for this class.

MouseDown

The MouseDown event is not supported by the AxHost class.

MouseEnter

The MouseEnter event is not supported by the AxHost class.

MouseHover

The MouseHover event is not supported by the AxHost class.

MouseLeave

The MouseLeave event is not supported by the AxHost class.

MouseMove

The MouseMove event is not supported by the AxHost class.

MouseUp

The MouseUp event is not supported by the AxHost class.

MouseWheel

The MouseWheel event is not supported by the AxHost class.

Move

Occurs when the control is moved.

(Inherited from Control)
PaddingChanged

Occurs when the control's padding changes.

(Inherited from Control)
Paint

The Paint event is not supported by the AxHost class.

ParentChanged

Occurs when the Parent property value changes.

(Inherited from Control)
PreviewKeyDown

Occurs before the KeyDown event when a key is pressed while focus is on this control.

(Inherited from Control)
QueryAccessibilityHelp

The QueryAccessibilityHelp event is not supported by the AxHost class.

QueryContinueDrag

The QueryContinueDrag event is not supported by the AxHost class.

RegionChanged

Occurs when the value of the Region property changes.

(Inherited from Control)
Resize

Occurs when the control is resized.

(Inherited from Control)
RightToLeftChanged

The RightToLeftChanged event is not supported by the AxHost class.

SizeChanged

Occurs when the Size property value changes.

(Inherited from Control)
StyleChanged

The StyleChanged event is not supported by the AxHost class.

SystemColorsChanged

Occurs when the system colors change.

(Inherited from Control)
TabIndexChanged

Occurs when the value of the TabIndex property changes.

TabStopChanged

Occurs when the value of the TabStop property changes.

TextChanged

The TextChanged event is not supported by the AxHost class.

Validated

Occurs when the control is finished validating.

(Inherited from Control)
Validating

Occurs when the control is validating.

(Inherited from Control)
VisibleChanged

Occurs when the Visible property value changes.

(Inherited from Control)

Explicit Interface Implementations

ICustomTypeDescriptor.GetAttributes()

Returns a collection of type Attribute for the current object.

ICustomTypeDescriptor.GetClassName()

Returns the class name of the current object.

ICustomTypeDescriptor.GetComponentName()

Returns the name of the current object.

ICustomTypeDescriptor.GetConverter()

Returns a type converter for the current object.

ICustomTypeDescriptor.GetDefaultEvent()

Returns the default event for the current object.

ICustomTypeDescriptor.GetDefaultProperty()

Returns the default property for the current object.

ICustomTypeDescriptor.GetEditor(Type)

Returns an editor of the specified type for the current object.

ICustomTypeDescriptor.GetEvents()

Returns the events for the current object.

ICustomTypeDescriptor.GetEvents(Attribute[])

Returns the events for the current object using the specified attribute array as a filter.

ICustomTypeDescriptor.GetProperties()

Returns the properties for the current object.

ICustomTypeDescriptor.GetProperties(Attribute[])

Returns the properties for the current object using the specified attribute array as a filter.

ICustomTypeDescriptor.GetPropertyOwner(PropertyDescriptor)

Returns the object that owns the specified value.

IDropTarget.OnDragDrop(DragEventArgs)

Raises the DragDrop event.

(Inherited from Control)
IDropTarget.OnDragEnter(DragEventArgs)

Raises the DragEnter event.

(Inherited from Control)
IDropTarget.OnDragLeave(EventArgs)

Raises the DragLeave event.

(Inherited from Control)
IDropTarget.OnDragOver(DragEventArgs)

Raises the DragOver event.

(Inherited from Control)

Applies to

See also