HwndHost.WndProc(IntPtr, Int32, IntPtr, IntPtr, Boolean) HwndHost.WndProc(IntPtr, Int32, IntPtr, IntPtr, Boolean) HwndHost.WndProc(IntPtr, Int32, IntPtr, IntPtr, Boolean) HwndHost.WndProc(IntPtr, Int32, IntPtr, IntPtr, Boolean) Method

Definition

When overridden in a derived class, accesses the window process (handle) of the hosted child window.

protected:
 virtual IntPtr WndProc(IntPtr hwnd, int msg, IntPtr wParam, IntPtr lParam, bool % handled);
[System.Security.SecurityCritical]
protected virtual IntPtr WndProc (IntPtr hwnd, int msg, IntPtr wParam, IntPtr lParam, ref bool handled);
abstract member WndProc : nativeint * int * nativeint * nativeint *  -> nativeint
override this.WndProc : nativeint * int * nativeint * nativeint *  -> nativeint
Protected Overridable Function WndProc (hwnd As IntPtr, msg As Integer, wParam As IntPtr, lParam As IntPtr, ByRef handled As Boolean) As IntPtr
Parameters
hwnd
IntPtr IntPtr IntPtr IntPtr

The window handle of the hosted window.

msg
Int32 Int32 Int32 Int32

The message to act upon.

wParam
IntPtr IntPtr IntPtr IntPtr

Information that may be relevant to handling the message. This is typically used to store small pieces of information, such as flags.

lParam
IntPtr IntPtr IntPtr IntPtr

Information that may be relevant to handling the message. This is typically used to reference an object.

handled
Boolean Boolean Boolean Boolean

Whether events resulting should be marked handled.

Returns

The window handle of the child window.

Remarks

Important

This type or member is not available in the Internet security zone.

Notes to Inheritors

The base implementation in HwndHost does not return a practical process, but will return IntPtr.Zero as a failsafe.

Security

SecurityPermission
to call this method. Associated enumeration: UnmanagedCode

Applies to