当它收到包含 OBJID_CLIENT WM_GETOBJECT消息 时,服务器必须返回指向实现 IAccessible的 对象的指针。 此指针是通过调用 LresultFromObject 获取的 LRESULT。 Microsoft Active Accessibility 与组件对象模型 (COM) 库结合使用,执行适当的封送处理并将 IAccessible 接口指针从服务器传递到客户端。服务...
在对象完全初始化之前或开始关闭之后,服务器不会响应 WM_GETOBJECT。 当应用程序创建新窗口时,系统会在将 WM_CREATE 消息发送到应用程序的窗口过程之前发送 EVENT_OBJECT_CREATE 通知客户端。 由于许多应用程序使用 WM_CREATE 来启动其初始化过程,因此服务器在处理 完WM_CREATE 消息后才会响应 WM_GETOBJECT 消息。
当客户端调用一个 AccessibleObjectFromX 函数时,Microsoft Active Accessibility 会将 WM\_GETOBJECT 消息发送到相应的服务器应用程序。
Microsoft Active Accessibility 搭配元件物件模型 (COM) 程式庫,執行適當的封送處理,並將介面指標從伺服器傳回用戶端。 如果接收訊息的視窗未實作IAccessible,它應該會傳回零。 如果視窗未處理WM_GETOBJECT訊息,DefWindowProc函式會傳回零。 即使伺服器傳回零,Microsoft Active Accessibility 仍會提供用戶端物件的相關資訊。
Active Accessibility sends the WM_GETOBJECT message to the appropriate server application when a client calls one of the AccessibleObjectFromX functions. The following list describes the various scenarios that occur:If the window or control that receives WM_GETOBJECT implements IAccessible, the window ...
WM_GETOBJECT mensagem Microsoft Build May 21–23, 2024 Registrar agora Ignorar alerta Learn Entrar Ignorar alerta Algumas partes deste tópico podem ter sido traduzidas automaticamente. Pesquisar Acessibilidade e automação do Windows Referência dos recursos de acessibilidade do Windows...
message with value 0x003c at all. WM_GETOBJECT is used by Active Accessibility to retrieve an interface pointer from a window. Changelog: Dmitry Timoshkov <[EMAIL PROTECTED]> Add WM_GETOBJECT definition, remove WM_OTHERWINDOWCREATED define. ...
Servers do not respond to WM_GETOBJECT before the object is fully initialized or after it begins to close down. When an application creates a new window, the system sends EVENT_OBJECT_CREATE to notify clients before it sends the WM_CREATE message to the application's window procedure. Because...
Al procesar WM_GETOBJECT, las aplicaciones de servidor llaman a LresultFromObject y usan el valor devuelto de esta función como valor devuelto para el mensaje. La accesibilidad activa de Microsoft, junto con la biblioteca COM, realiza las referencias adecuadas y pasa el puntero de interfaz del ...
When it receives a WM_GETOBJECT message that contains OBJID_CLIENT, the server must return a pointer to the object that implements IAccessible. This pointer is an LRESULT that is obtained by calling LresultFromObject. Active Accessibility, in conjunction with the COM library, performs the appropriat...