77 lines
2.2 KiB
C
77 lines
2.2 KiB
C
/*
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*********************************************************************************************************
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* uC/GUI
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* Universal graphic software for embedded applications
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*
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* (c) Copyright 2002, Micrium Inc., Weston, FL
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* (c) Copyright 2002, SEGGER Microcontroller Systeme GmbH
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*
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* µC/GUI is protected by international copyright laws. Knowledge of the
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* source code may not be used to write a similar product. This file may
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* only be used in accordance with a license and should not be redistributed
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* in any way. We appreciate your understanding and fairness.
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*
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----------------------------------------------------------------------
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File : WM__IsAncestor.c
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Purpose : Implementation of WM__IsAncestor
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----------------------------------------------------------------------
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*/
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#include "WM_Intern.h"
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#if GUI_WINSUPPORT /* If 0, WM will not generate any code */
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/*********************************************************************
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*
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* Public code
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*
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**********************************************************************
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*/
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/*********************************************************************
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*
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* WM__IsAncestor
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*
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* Return value:
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* if hChild is indeed a descendent (Child or child of child etc.) : 1
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* Else: 0
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*
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*
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*/
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int WM__IsAncestor(WM_HWIN hChild, WM_HWIN hParent) {
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int r = 0;
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if (hChild && hParent) {
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while(hChild) {
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WM_Obj *pChild = WM_H2P(hChild);
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if (pChild->hParent == hParent) {
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r = 1;
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break;
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}
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hChild = pChild->hParent;
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}
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}
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return r;
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}
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/*********************************************************************
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*
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* WM__IsAncestor
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*
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* Return value:
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* if hChild is indeed a descendent (Child or child of child etc.) : 1
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* Else: 0
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*
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*
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*/
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int WM__IsAncestorOrSelf(WM_HWIN hChild, WM_HWIN hParent) {
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if (hChild == hParent) {
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return 1;
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}
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return WM__IsAncestor(hChild, hParent);
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}
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#else
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void WM__IsAncestor_c(void) {} /* avoid empty object files */
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#endif
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/*************************** End of file ****************************/
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