Windows Service中使用SendInput无效

[scutth]

RT，我想用SendInput模拟键盘和鼠标事件，在Desktop Application中使用没有任何问题，但是在Service中调用SendInput没有任何效果，函数返回结果却是正常的。Service中的code如下：

void CSampleService::ServiceWorkerThread(void)
{
	DWORD error;
	BOOL retVal;
	DWORD res;

	HWINSTA hWinsta = OpenWindowStation(_T("WinSta0"),FALSE,MAXIMUM_ALLOWED);
	retVal = SetProcessWindowStation(hWinsta);

	/*HDESK hDesk = OpenDesktop(_T("Default"),0,FALSE,MAXIMUM_ALLOWED);*/
	HDESK hDesk = OpenInputDesktop(0,FALSE,MAXIMUM_ALLOWED);
	retVal = SetThreadDesktop(hDesk);

	// Periodically check if the service is stopping.
    while (!m_fStopping)
    {
        // Perform main service function here...
		INPUT kbdinput[2] = {0};
		
		kbdinput[0].type = INPUT_KEYBOARD;
		kbdinput[0].ki.wVk = VK_SPACE;

		res = SendInput(1,kbdinput,sizeof(INPUT));
		if(res != 1)
		{
			error = GetLastError();
		}

		kbdinput[1].type = INPUT_KEYBOARD;
		kbdinput[1].ki.wVk = VK_SPACE;
		kbdinput[1].ki.dwFlags = KEYEVENTF_KEYUP;
		res = SendInput(1,kbdinput+1,sizeof(INPUT));
		if(res != 1)
		{
			error = GetLastError();
		}

        ::Sleep(2000);  // Simulate some lengthy operations.
    }

    // Signal the stopped event.
    SetEvent(m_hStoppedEvent);

	CloseDesktop(hDesk);
	CloseWindowStation(hWinsta);
	
}

这个Service是参考MSDN上的一个Sample
http://code.msdn.microsoft.com/windowsdesktop/CppWindowsService-cacf4948

任何想法都欢迎 :)

[scutth]

引用 3 楼 youyou1912 的回复:

session 0 隔离

如何实现呢？ MSDN上有一段： Important All services run in Terminal Services session 0.[/quote] 在用户session里面起一个进程, 把相关逻辑放到这个进程里面做?[/quote] 这不行。我们的需求是根据底层硬件（比如传感器）发上来的数据模拟鼠标或者键盘的事件，再发送给应用程序。 这就要求应用程序在收到消息时就已经是鼠标或者键盘的事件了。

[youyou1912]

session 0 隔离

[scutth]

引用 1 楼 youyou1912 的回复:

session 0 隔离

如何实现呢？ MSDN上有一段： Important All services run in Terminal Services session 0. Therefore, if an interactive service displays a user interface, it is visible only to the user who connected to session 0. Because there is no way to guarantee that the interactive user is connected to session 0, do not configure a service to run as an interactive service under Terminal Services or on a system that supports fast user switching (fast user switching is implemented using Terminal Services). 但是没有明白怎么做。要把Interactive Service属性去掉么？

[youyou1912]

引用 2 楼 scutth 的回复:

[quote=引用 1 楼 youyou1912 的回复:] session 0 隔离

如何实现呢？ MSDN上有一段： Important All services run in Terminal Services session 0. Therefore, if an interactive service displays a user interface, it is visible only to the user who connected to session 0. Because there is no way to guarantee that the interactive user is connected to session 0, do not configure a service to run as an interactive service under Terminal Services or on a system that supports fast user switching (fast user switching is implemented using Terminal Services). 但是没有明白怎么做。要把Interactive Service属性去掉么？[/quote] 在用户session里面起一个进程, 把相关逻辑放到这个进程里面做?