CWindow::CenterWindow
Centers the window against a given window.
BOOL CenterWindow(
HWND hWndCenter = NULL
) throw();
Parameters
- hWndCenter
[in] The handle to the window against which to center. If this parameter is NULL (the default value), the method will set hWndCenter to the window's parent window if it is a child window. Otherwise, it will set hWndCenter to the window's owner window.
Return Value
TRUE if the window is successfully centered; otherwise, FALSE.
Example
//The following example attaches various HWNDs to the CWindow objects
//and calls CWindow::CenterWindow() for each of them
CWindow childWindow, popupWindow, overlappedWindow;
childWindow.Attach(hWndChild); //a window created with WS_CHILD style
childWindow.CenterWindow(); //This will center the child
//window against its Parent window
popupWindow.Attach(hWndPopup); //a window created with WS_POPUP style
popupWindow.CenterWindow(); //This will center the popup window
//against its Owner window
overlappedWindow.Attach(hWndOverlapped); //a window created with
//WS_OVERLAPPED style
overlappedWindow.CenterWindow(::GetDesktopWindow()); //This will center
//the overlapped window against the DeskTop window
Requirements
Header: atlwin.h