ComUtilities.QueryInterfaceIUnknown(Object) 方法

定义

检索 IUnknown 指定托管或 COM 对象的。

public:
 static IntPtr QueryInterfaceIUnknown(System::Object ^ objectToQuery);
public static IntPtr QueryInterfaceIUnknown (object objectToQuery);
static member QueryInterfaceIUnknown : obj -> nativeint
Public Shared Function QueryInterfaceIUnknown (objectToQuery As Object) As IntPtr

参数

objectToQuery
Object

托管或 COM 对象。

返回

IntPtr

nativeint

指向对象的 IUnknown 接口的指针。

注解

Release 当不再需要接口指针时,应对返回的值调用。

适用于