True = 1
False = 0
Schonmal gelesen ????
Zitat:
The WM_SHOWWINDOW message is sent to a window when the window is about to be hidden or shown.
WM_SHOWWINDOW
fShow = (BOOL) wParam; // show/hide flag
fnStatus = (int) lParam; // status flag
Parameters
fShow
Value of wParam. Specifies whether a window is being shown. It is TRUE if the window is being shown or FALSE if the window is being hidden.
fnStatus
Value of lParam. Specifies the status of the window being shown. The fnStatus parameter is zero if the message is sent because of a call to the ShowWindow function; otherwise, fnStatus is one of the following values:
Value Meaning
SW_OTHERUNZOOM Window is being uncovered because a maximize window was restored or minimized.
SW_OTHERZOOM Window is being covered by another window that has been maximized.
SW_PARENTCLOSING Window's owner window is being minimized.
SW_PARENTOPENING Window's owner window is being restored.
Das ist ein orginal Auszug aus der Delphi Hilfe !!!