| 术语 | sendasyncproc |
| 释义 | SendAsyncProc 语法： VOID SendAsyncProc( HWND hwnd, UINT uMsg, ULONG_PTR dwData, LRESULT lResult ); SendAsyncProc功能 该SendAsyncProc函数是一个应用程序定义的回调函数与SendMessageCallback功能使用。该系统将消息传递给回调函数传递消息后，到目的地的窗口过程。在SENDASYNCPROC类型定义一个指向这个回调函数。 SendAsyncProc是一个应用程序的占位符定义函数的名称。 参数 hwnd [in]句柄窗口的窗口过程收到的消息。 如果SendMessageCallback功能与hwnd设置HWND_BROADCAST参数调用，系统调用SendAsyncProc功能为每个顶层窗口一次。 uMsg [in]指定的消息。 dwData [in]指定一个应用程序定义的函数从SendMessageCallback发送价值。 lResult [in]指定消息的处理结果。此值取决于消息。 返回值 此回调函数不返回值。 备注 您安装SendAsyncProc应用程序定义的通过一项SENDASYNCPROC指针SendMessageCallback函数回调函数。 回调函数只有当线程调用的所谓SendMessageCallback调用GetMessage，PeekMessage，或WaitMessage。 功能信息 在Winuser.h中HeaderDeclared，头文件：winuser.h import libraryNone 最低操作系统Windows 95，Windows NT 3.1 参见 消息和消息队列概述，GetMessage，PeekMessage，SendMessageCallback，WaitMessage ＝＝英文原文＝＝SendAsyncProc Function The SendAsyncProc function is an application-defined callback function used with the SendMessageCallback function. The system passes the message to the callback function after passing the message to the destination window procedure. The SENDASYNCPROC type defines a pointer to this callback function. SendAsyncProc is a placeholder for the application-defined function name. Syntax VOID SendAsyncProc( HWND hwnd, UINT uMsg, ULONG_PTR dwData, LRESULT lResult ); Parameters hwnd [in] Handle to the window whose window procedure received the message. If the SendMessageCallback function was called with its hwnd parameter set to HWND_BROADCAST, the system calls the SendAsyncProc function once for each top-level window. uMsg [in] Specifies the message. dwData [in] Specifies an application-defined value sent from the SendMessageCallback function. lResult [in] Specifies the result of the message processing. This value depends on the message. Return Value This callback function does not return a value. Remarks You install a SendAsyncProc application-defined callback function by passing a SENDASYNCPROC pointer to the SendMessageCallback function. The callback function is only called when the thread that called SendMessageCallback calls GetMessage , PeekMessage , or WaitMessage . Function Information HeaderDeclared in Winuser.h, include Windows.h Import libraryNone Minimum operating systemsWindows 95, Windows NT 3.1 See Also Messages and Message Queues Overview , GetMessage , PeekMessage , SendMessageCallback , WaitMessage ＝＝原始网址＝＝http://msdn.microsoft.com/en-us/library/ms644949(VS.85).aspx\n |
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