AutomationInteropProvider.ReturnRawElementProvider Método

  • Referência

Definição

Namespace:
System.Windows.Automation.Provider
Assembly:
UIAutomationProvider.dll

Retorna o provedor de Automação da Interface do Usuário para um elemento em resposta a uma mensagem WM_GETOBJECT.

public:
 static IntPtr ReturnRawElementProvider(IntPtr hwnd, IntPtr wParam, IntPtr lParam, System::Windows::Automation::Provider::IRawElementProviderSimple ^ el);
public static IntPtr ReturnRawElementProvider (IntPtr hwnd, IntPtr wParam, IntPtr lParam, System.Windows.Automation.Provider.IRawElementProviderSimple el);
static member ReturnRawElementProvider : nativeint * nativeint * nativeint * System.Windows.Automation.Provider.IRawElementProviderSimple -> nativeint
Public Shared Function ReturnRawElementProvider (hwnd As IntPtr, wParam As IntPtr, lParam As IntPtr, el As IRawElementProviderSimple) As IntPtr

Parâmetros

hwnd
IntPtr

nativeint

O identificador da janela do elemento.

wParam
IntPtr

nativeint

O membro wParam da mensagem WM_GETOBJECT.

lParam
IntPtr

nativeint

O membro lParam da mensagem WM_GETOBJECT.

el
IRawElementProviderSimple

O provedor de Automação da Interface do Usuário do elemento.

Retornos

IntPtr

nativeint

Um ponteiro para dados que devem ser atribuídos a Result antes de transmitir a mensagem para o procedimento da janela base.

Exemplos

/// <summary>
/// Handles WM_GETOBJECT message; others are passed to base handler.
/// </summary>
/// <param name="m">Windows message.</param>
/// <remarks>
/// This method enables UI Automation to find the control.
/// In this example, the implementation of IRawElementProvider is in the same class
/// as this method.
/// </remarks>
protected override void WndProc(ref Message m)
{
    const int WM_GETOBJECT = 0x003D;

    if ((m.Msg == WM_GETOBJECT) && (m.LParam.ToInt32() == 
        AutomationInteropProvider.RootObjectId))
    {
        m.Result = AutomationInteropProvider.ReturnRawElementProvider(
                this.Handle, m.WParam, m.LParam, 
                (IRawElementProviderSimple)this);
        return;
    }
    base.WndProc(ref m);
}

''' <summary>
''' Handles WM_GETOBJECT message; others are passed to base handler.
''' </summary>
''' <param name="m">Windows message.</param>
''' <remarks>
''' This method enables UI Automation to find the control.
''' In this example, the implementation of IRawElementProvider is in the same class
''' as this method.
''' </remarks>
Protected Overrides Sub WndProc(ByRef m As Message)
    Const WM_GETOBJECT As Integer = &H3D

    If m.Msg = WM_GETOBJECT AndAlso m.LParam.ToInt32() = AutomationInteropProvider.RootObjectId Then
        m.Result = AutomationInteropProvider.ReturnRawElementProvider(Me.Handle, m.WParam, m.LParam, DirectCast(Me, IRawElementProviderSimple))
        Return
    End If
    MyBase.WndProc(m)

End Sub

Aplica-se a

Confira também