AutomationInteropProvider.ReturnRawElementProvider Methode

Definition

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

Gibt den Benutzeroberflächenautomatisierungsanbieter für ein Element als Reaktion auf eine WM_GETOBJECT Nachricht zurück.

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

Parameter

hwnd
IntPtr

nativeint

Handle des Fensters des Elements.

wParam
IntPtr

nativeint

Das wParam Mitglied der WM_GETOBJECT Nachricht.

lParam
IntPtr

nativeint

Das lParam Mitglied der WM_GETOBJECT Nachricht.

el
IRawElementProviderSimple

Der Benutzeroberflächenautomatisierung Anbieter für das Element.

Gibt zurück

IntPtr

nativeint

Ein Zeiger auf Daten, die vor dem Übergeben der Nachricht an die Basisfensterprozedur zugewiesen Result werden sollen.

Beispiele

/// <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

Gilt für:

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