AutomationInteropProvider.HostProviderFromHandle(IntPtr) 方法

定义

命名空间:

System.Windows.Automation.Provider

程序集:

UIAutomationProvider.dll

返回表示指定的窗口的 UI 自动化提供程序。

public:
 static System::Windows::Automation::Provider::IRawElementProviderSimple ^ HostProviderFromHandle(IntPtr hwnd);

public static System.Windows.Automation.Provider.IRawElementProviderSimple HostProviderFromHandle (IntPtr hwnd);

static member HostProviderFromHandle : nativeint -> System.Windows.Automation.Provider.IRawElementProviderSimple

Public Shared Function HostProviderFromHandle (hwnd As IntPtr) As IRawElementProviderSimple

参数

hwnd

IntPtr

nativeint

窗口的句柄。

返回

IRawElementProviderSimple

指定窗口的原始元素提供程序。

示例

/// <summary>
/// Gets the host provider.
/// </summary>
/// <remarks>
/// Fragment roots return their window providers; most others return null.
/// </remarks>
IRawElementProviderSimple IRawElementProviderSimple.HostRawElementProvider  
{
    get 
    {
        return AutomationInteropProvider.HostProviderFromHandle(myHandle);  
    }
}

''' <summary>
''' Gets the host provider.
''' </summary>
''' <remarks>
''' Fragment roots return their window providers; most others return null.
''' </remarks>
ReadOnly Property HostRawElementProvider() As IRawElementProviderSimple _
    Implements IRawElementProviderSimple.HostRawElementProvider

    Get
        Return AutomationInteropProvider.HostProviderFromHandle(myHandle)
    End Get
End Property

注解

此方法返回的接口只能传递回UI 自动化。 尝试在接口上调用方法将引发异常。