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https://github.com/reactos/reactos.git
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114 lines
2.7 KiB
C
114 lines
2.7 KiB
C
/* $Id$
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*
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* COPYRIGHT: See COPYING in the top level directory
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* PROJECT: ReactOS user32.dll
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* FILE: lib/user32/windows/window.c
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* PURPOSE: Window management
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* PROGRAMMER: Casper S. Hornstrup (chorns@users.sourceforge.net)
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* UPDATE HISTORY:
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* 06-06-2001 CSH Created
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*/
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/* INCLUDES ******************************************************************/
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#include <user32.h>
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#include <wine/debug.h>
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WINE_DEFAULT_DEBUG_CHANNEL(user32);
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/* FUNCTIONS *****************************************************************/
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/*******************************************************************
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* can_activate_window
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*
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* Check if we can activate the specified window.
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*/
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static BOOL can_activate_window( HWND hwnd )
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{
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LONG style;
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if (!hwnd) return FALSE;
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style = GetWindowLongPtrW( hwnd, GWL_STYLE );
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if (!(style & WS_VISIBLE)) return FALSE;
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if ((style & (WS_POPUP|WS_CHILD)) == WS_CHILD) return FALSE;
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return !(style & WS_DISABLED);
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}
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/*******************************************************************
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* WINPOS_ActivateOtherWindow
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*
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* Activates window other than pWnd.
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*/
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void
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WINAPI
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WinPosActivateOtherWindow(HWND hwnd)
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{
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HWND hwndTo, fg;
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if ((GetWindowLongPtrW( hwnd, GWL_STYLE ) & WS_POPUP) && (hwndTo = GetWindow( hwnd, GW_OWNER )))
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{
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hwndTo = GetAncestor( hwndTo, GA_ROOT );
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if (can_activate_window( hwndTo )) goto done;
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}
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hwndTo = hwnd;
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for (;;)
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{
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if (!(hwndTo = GetWindow( hwndTo, GW_HWNDNEXT ))) break;
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if (can_activate_window( hwndTo )) break;
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}
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done:
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fg = GetForegroundWindow();
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TRACE("win = %p fg = %p\n", hwndTo, fg);
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if (!fg || (hwnd == fg))
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{
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if (SetForegroundWindow( hwndTo )) return;
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}
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if (!SetActiveWindow( hwndTo )) SetActiveWindow(0);
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}
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UINT WINAPI
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WinPosGetMinMaxInfo(HWND hWnd, POINT* MaxSize, POINT* MaxPos,
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POINT* MinTrack, POINT* MaxTrack)
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{
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MINMAXINFO MinMax;
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if(NtUserGetMinMaxInfo(hWnd, &MinMax, TRUE))
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{
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MinMax.ptMaxTrackSize.x = max(MinMax.ptMaxTrackSize.x,
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MinMax.ptMinTrackSize.x);
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MinMax.ptMaxTrackSize.y = max(MinMax.ptMaxTrackSize.y,
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MinMax.ptMinTrackSize.y);
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if (MaxSize) *MaxSize = MinMax.ptMaxSize;
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if (MaxPos) *MaxPos = MinMax.ptMaxPosition;
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if (MinTrack) *MinTrack = MinMax.ptMinTrackSize;
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if (MaxTrack) *MaxTrack = MinMax.ptMaxTrackSize;
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}
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return 0; //FIXME: what does it return?
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}
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/*
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* @implemented
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*/
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HWND WINAPI
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GetActiveWindow(VOID)
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{
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return (HWND)NtUserGetThreadState(THREADSTATE_ACTIVEWINDOW);
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}
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/*
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* @unimplemented
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*/
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UINT WINAPI
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ArrangeIconicWindows(HWND hWnd)
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{
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return NtUserCallHwndLock( hWnd, HWNDLOCK_ROUTINE_ARRANGEICONICWINDOWS);
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}
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