| 术语 | iswow64message |
| 释义 | IsWow64Message 语法： C++ BOOL WINAPI IsWow64Message(void); IsWow64Message功能 确定是否最后一条消息从当前线程的队列中读取的过程从一个WOW64的起源。 参数 这个函数没有参数。 返回值 该函数返回TRUE，如果最后一条消息从当前线程的队列中读取的过程，从最初的WOW64，否则返回FALSE。 备注 此功能非常有用，帮助您开发的64位本地应用程序，可以接收私人信息发送至32位客户端应用程序，如果信息与数据结构的指针包含依赖数据关联。在这种情况下，您可以调用此函数的64位本地应用程序，以确定该消息源自于WOW64的过程，然后适当thunk的消息。 实例 对于操作系统不支持此功能，兼容性调用GetProcAddress来检测是否IsWow64Message是在user32.dll实施。如果调用GetProcAddress成功，它是安全的调用此函数。否则，WOW64是不存在。请注意，这种方法并不是一个可靠的方法来检测操作系统是否是64位版本的Windows，因为在目前32个版本user32.dll中位Windows还包含这一功能。 #include #include typedef BOOL (WINAPI *LPFN_ISWOW64MESSAGE) (void); LPFN_ISWOW64MESSAGE fnIsWow64Message; BOOL IsWow64Msg() { fnIsWow64Message = (LPFN_ISWOW64MESSAGE) GetProcAddress( LoadLibrary(TEXT("user32")), "IsWow64Message"); if (NULL != fnIsWow64Message) { return (fnIsWow64Message()); } else return FALSE; } void main() { if(IsWow64Msg()) printf("Last message from 32-bit process\\n"); else if (NULL == fnIsWow64Message ) printf("IsWow64Message not available (%d).\\n", GetLastError()); else printf("Last message from 64-bit process\\n"); } 要求： 最低支持clientWindows SP2的景色时，Windows XP 最低支持serverWindows Server 2008中时，Windows Server 2003 SP1的 HeaderWinuser.h(头文件：winuser.h) LibraryUser32.lib DLLUser32.dll 参见 GetNativeSystemInfo IsWow64Process 在WOW 64 如果有任何问题和意见，请发送给微软(wsddocfb@microsoft.com) 生成日期：2009年8月27日 ＝＝英文原文＝＝IsWow64Message Function Determines whether the last message read from the current thread's queue originated from a WOW64 process. Syntax C++ BOOL WINAPI IsWow64Message(void); Parameters This function has no parameters. Return Value The function returns TRUE if the last message read from the current thread's queue originated from a WOW64 process, and FALSE otherwise. Remarks This function is useful to helping you develop 64-bit native applications that can receive private messages sent from 32-bit client applications, if the messages are associated with data structures that contain pointer-dependent data. In these situations, you can call this function in your 64-bit native application to determine if the message originated from a WOW64 process and then thunk the message appropriately. Examples For compatibility with operating systems that do not support this function, call GetProcAddress to detect whether IsWow64Message is implemented in User32.dll. If GetProcAddress succeeds, it is safe to call this function. Otherwise, WOW64 is not present. Note that this technique is not a reliable way to detect whether the operating system is a 64-bit version of Windows because the User32.dll in current versions of 32-bit Windows also contains this function. #include #include typedef BOOL (WINAPI *LPFN_ISWOW64MESSAGE) (void); LPFN_ISWOW64MESSAGE fnIsWow64Message; BOOL IsWow64Msg() { fnIsWow64Message = (LPFN_ISWOW64MESSAGE) GetProcAddress( LoadLibrary(TEXT("user32")), "IsWow64Message"); if (NULL != fnIsWow64Message) { return (fnIsWow64Message()); } else return FALSE; } void main() { if(IsWow64Msg()) printf("Last message from 32-bit process\\n"); else if (NULL == fnIsWow64Message ) printf("IsWow64Message not available (%d).\\n", GetLastError()); else printf("Last message from 64-bit process\\n"); } Requirements Minimum supported clientWindows Vista, Windows XP with SP2 Minimum supported serverWindows Server 2008, Windows Server 2003 with SP1 HeaderWinuser.h (include Windows.h) LibraryUser32.lib DLLUser32.dll See Also GetNativeSystemInfo IsWow64Process WOW64 Send comments about this topic to Microsoft Build date: 8/27/2009 ＝＝原始网址＝＝http://msdn.microsoft.com/en-us/library/ms684136(VS.85).aspx\n |
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