75 lines
2.2 KiB
C
75 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_GetParent.c
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Purpose : Windows manager, add. module
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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__GetDialogItem
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Recursively scan window and its child windows until dialog item is
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found or all children have been scanned.
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*/
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static WM_HWIN _GetDialogItem(WM_HWIN hWin, int Id) {
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WM_HWIN hi;
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WM_HWIN r =0;
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WM_Obj* pWin = WM_H2P(hWin);
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hi = pWin->hFirstChild;
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while (hi) {
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/* This windows Id matching ? */
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if (WM_GetId(hi) == Id) {
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return hi;
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}
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/* Any child windows Id matching ? */
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if ((r = _GetDialogItem(hi, Id)) != 0) {
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break;
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}
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hi = WM_HANDLE2PTR(hi)->hNext;
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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_GetDialogItem
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*/
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WM_HWIN WM_GetDialogItem(WM_HWIN hWin, int Id) {
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WM_HWIN r = 0;
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if (hWin) {
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WM_LOCK();
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r = _GetDialogItem(hWin, Id);
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WM_UNLOCK();
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}
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return r;
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}
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#else /* Avoid empty object files */
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void WM_DialogItem_C(void) {}
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#endif /* GUI_WINSUPPORT */
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/*************************** End of file ****************************/
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