求助:CreateWindow创建的窗口会出现在win10所有的虚拟桌面里

Question

源码如下

WNDCLASSEX wcex;
    HINSTANCE hInstance = GetModuleHandle(NULL);
    static int hasRegistered = 0;

    if (hasRegistered == 0)
    {
        hasRegistered = 1;
        wcex.cbSize = sizeof(WNDCLASSEX);
        wcex.style = CS_HREDRAW | CS_VREDRAW;
        wcex.lpfnWndProc = IndicatorWndProc;
        wcex.cbClsExtra = 0;
        wcex.cbWndExtra	= 0;
        wcex.hInstance = hInstance;
        wcex.hIcon = NULL;
        wcex.hCursor = NULL;
        wcex.hbrBackground = NULL;
        wcex.lpszMenuName = NULL;
        wcex.lpszClassName = _T("SHARING INDICATOR");
        wcex.hIconSm = NULL;

        ATOM ret = RegisterClassEx(&wcex);
    }

    *hWnd = CreateWindowEx(WS_EX_TOOLWINDOW | WS_EX_LAYERED | WS_EX_NOACTIVATE, _T("SHARING INDICATOR"), NULL,
        WS_POPUP | WS_DISABLED,
        CW_USEDEFAULT, 0, CW_USEDEFAULT, 0, NULL, NULL, hInstance, NULL);
	SetLayeredWindowAttributes(*hWnd,RGB(255,255,255),0,LWA_COLORKEY);

这样生成的窗口会出现在所有的虚拟桌面上...求问如何能让它只出现在当前桌面上 是否与Create时使用的Style有关? 谢谢

Answer 1

我测试了一下是可以重现的，好像跟WS_EX_NOACTIVATE的窗口扩展风格有关。我给一个创建好的窗口用SetWindowLongPtr 添加这个扩展风格，仍然会出现这个问题。

建议将这个问题发到Connect去，然后等待微软的人给的回复。也许是by design的问题，也有可能是bug。https://connect.microsoft.com/VisualStudio

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Answer 2

我尝试去掉WS_WX_NOACTIVATE后问题依然存在..可能造成影响的Style不止一个

我在网络上找到一篇文章中发现TOPMOST风格也会造成这个问题

我尝试发去Connect看看 谢谢您的解答

Answer 3

又..去掉了TOOLWINDOW后问题消失..看来TOOLWINDOW也有影响