C++ 将窗口设置为最顶层
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Set a window to be topmost
提问by Victor
I am trying to keep my window on top of the all others. I am new to C++ Win32 programming. This is my initialization of my window in WinMain:
我试图让我的窗口在所有其他窗口之上。我是 C++ Win32 编程的新手。这是我的窗口初始化WinMain：
hWnd = CreateWindow(szWindowClass, szTitle, WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, 0, CW_USEDEFAULT, 0, NULL, NULL, hInstance, NULL);
I previously worked with dialogs, so the topmost property was really easy to use. But here, on a window I don't know how to set it. I also want to be able to trigger it. Can anybody help me?
我以前使用过对话框，所以最上面的属性真的很容易使用。但是在这里，在一个窗口上我不知道如何设置它。我也希望能够触发它。有谁能够帮助我？
回答by Amir
SetWindowPos(hwnd01, HWND_TOPMOST, 0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE);
Note:SWP_NOMOVE | SWP_NOSIZEare for ignoring 3rd, 4th, 5th, 6th parameters of the SetWindowPosfunction.
注：SWP_NOMOVE | SWP_NOSIZE用于忽略SetWindowPos函数的第 3、4、5、6 个参数。
The second parameter can be:
第二个参数可以是：
HWND_BOTTOMHWND_NOTOPMOST(set window to be a normal window)HWND_TOPHWND_TOPMOST(set window to be always on top)
HWND_BOTTOMHWND_NOTOPMOST（设置窗口为普通窗口）HWND_TOPHWND_TOPMOST（设置窗口总是在最上面）
回答by Cheers and hth. - Alf
Use CreateWindowExwith (extended) window style WS_EX_TOPMOST.
使用CreateWindowEx与（扩展）窗口风格WS_EX_TOPMOST。
Disclaimer: it's about 15 years or so since I touched that stuff.
免责声明：我接触这些东西大约有 15 年了。
回答by Hayri U?ur Koltuk
see SetWindowPos, hWndInsertAfterparameter. passing HWND_TOPMOSTshould do what you want.
请参阅SetWindowPos，hWndInsertAfter参数。通过HWND_TOPMOST应该做你想做的。
additionally, you may want to pass SWP_NOMOVE | SWP_NOSIZEto uFlagsparameter if you want to keep position and size unchanged.
此外，如果您想保持位置和大小不变，您可能需要传递SWP_NOMOVE | SWP_NOSIZE给uFlags参数。
回答by vik_78
SWP_NOMOVE Retains the current position (ignores X and Y parameters). SWP_NOSIZE Retains the current size (ignores the cx and cy parameters). If you don't set these flags you should specify position and size instead of passing 0, 0, 0, 0
SWP_NOMOVE 保留当前位置（忽略 X 和 Y 参数）。SWP_NOSIZE 保留当前大小（忽略 cx 和 cy 参数）。如果你不设置这些标志，你应该指定位置和大小而不是传递 0, 0, 0, 0
