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 WINAPI BringWindowToTop(
_In_ HWND hWnd
DECLAREINTEGER BringWindowToTop IN user32;
A handle to the window to bring to the top of the Z order.
If the function succeeds, the return value is nonzero.
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.