怎样使另一个程序的主窗口成为当前窗口？

[bugyouth]

我的程序加入了防止二次启动的功能。当再次启动本身时怎样使已运行的程序的主窗口成为当前窗口？

[0sch]

findWindow->setfoucs

[bugyouth]

up

[ross33123]

BringWindowToTop

[papaya_stone]

BringWindowToTop
The BringWindowToTop function brings the specified window to the top of the Z order. If the window is a top-level window, it is activated. If the window is a child window, the top-level parent window associated with the child window is activated.

BOOL BringWindowToTop(
HWND hWnd // handle to window
);

Parameters
hWnd
Handle to the window to bring to the top of the Z order.
Return Values
If the function succeeds, the return value is nonzero.

If the function fails, the return value is zero. To get extended error information, callGetLastError.

Remarks
Use the BringWindowToTop function to uncover any window that is partially or completely obscured by other windows.

Calling this function is similar to calling the SetWindowPos function to change a window's position in the Z order. BringWindowToTop does not make a window a top-level window.

If an application is not in the foreground and wants to be in the foreground, it should call the SetForegroundWindow function.

QuickInfo
Windows NT: Requires version 3.1 or later.
Windows: Requires Windows 95 or later.
Windows CE: Requires version 1.0 or later.
Header: Declared in winuser.h.
Import Library: Use user32.lib.

See Also
Windows Overview, Window Functions, SetWindowPos, SetActiveWindow, SetForegroundWindow

[bugyouth]

good,试一下

[bugyouth]

BringWindowToTop不起作用，还有其它的方法吗？

[fbmsf]

findwindow

and

BOOL SetForegroundWindow(

HWND hWnd // handle of window to bring to foreground
);

[bugyouth]

SetActiveWindow也不起作用

[bugyouth]

SetForegroundWindow好使，ok,结贴

[sunyonglei]

好帖，已阅