system/lib/lcd/gui/WM/WM_GetInvalidRect.c

60 lines
1.9 KiB
C

/*
*********************************************************************************************************
* uC/GUI
* Universal graphic software for embedded applications
*
* (c) Copyright 2002, Micrium Inc., Weston, FL
* (c) Copyright 2002, SEGGER Microcontroller Systeme GmbH
*
* µC/GUI is protected by international copyright laws. Knowledge of the
* source code may not be used to write a similar product. This file may
* only be used in accordance with a license and should not be redistributed
* in any way. We appreciate your understanding and fairness.
*
----------------------------------------------------------------------
File : WM_GetInvalidRect.c
Purpose : Windows manager, submodule
----------------------------------------------------------------------
*/
#include "WM_Intern.h"
#if GUI_WINSUPPORT /* If 0, WM will not generate any code */
/*********************************************************************
*
* Public code
*
**********************************************************************
*/
/*********************************************************************
*
* WM_GetInvalidRect
*
* Return value:
* 0 if window is valid (there is no invalid rectangle)
* 1 if there is an invalid rectangle
*
*/
int WM_GetInvalidRect(WM_HWIN hWin, GUI_RECT * pRect) {
int IsInvalid = 0;
if (hWin) {
WM_Obj * pWin;
WM_LOCK();
pWin = WM_HANDLE2PTR(hWin);
if (pWin->Status & WM_SF_INVALID) {
IsInvalid = 1;
*pRect = pWin->InvalidRect;
}
WM_UNLOCK();
}
return IsInvalid;
}
#else
void WM_GetInvalidRect_C(void) {} /* avoid empty object files */
#endif /* GUI_WINSUPPORT */
/*************************** End of file ****************************/