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AutomationInteropProvider.ReturnRawElementProvider Méthode

  • Référence

Définition

Espace de noms:
System.Windows.Automation.Provider
Assembly:
UIAutomationProvider.dll

Retourne le fournisseur UI Automation pour un élément en réponse à un message 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

Paramètres

hwnd
IntPtr

nativeint

Handle de la fenêtre de l’élément.

wParam
IntPtr

nativeint

Membre wParam du message WM_GETOBJECT.

lParam
IntPtr

nativeint

Membre lParam du message WM_GETOBJECT.

el
IRawElementProviderSimple

Fournisseur UI Automation de l’élément.

Retours

IntPtr

nativeint

Pointeur vers les données qui doivent être assignées à Result avant de passer le message à la procédure de fenêtre de base.

Exemples

/// <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

S’applique à

Voir aussi