/***********************************************************************************************************                                                uC/GUI*                        Universal graphic software for embedded applications**                       (c) Copyright 2002, Micrium Inc., Weston, FL*                       (c) Copyright 2002, SEGGER Microcontroller Systeme GmbH**              礐/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_SetFocusOnNextChild.cPurpose     : Implementation of WM_SetFocusOnNextChild----------------------------------------------------------------------*/#include "WM_Intern.H"#if GUI_WINSUPPORT    /* If 0, WM will not generate any code *//***********************************************************************       static code************************************************************************/static WM_HWIN _SetFocusOnNextChild(WM_HWIN hParent) {     /* Set the focus to the first child */  WM_Obj* pParent = WM_HANDLE2PTR(hParent);  WM_Obj* pi;  WM_HWIN hChild  = WM_GetFocussedChild(hParent);  WM_HWIN hi = hChild;  if (pParent->hFirstChild == 0) {    return 0;                                     /* "Parent" does not have a child ... */  }  do {    if (hi == 0) {      hi = pParent->hFirstChild;    } else {      pi = WM_HANDLE2PTR(hi);      hi = pi->hNext;    }    if (hi == hChild) {      break;                                      /* We have completed a round -- No other child to focus --- give up ! */    }    if (WM_SetFocus(hi)) {      break;    }  } while (1);  return hi;}/***********************************************************************       Public code************************************************************************//***********************************************************************       WM_SetFocusOnNextChild*/WM_HWIN WM_SetFocusOnNextChild(WM_HWIN hParent) {     /* Set the focus to the first child */  WM_HWIN r;  WM_LOCK();    r = _SetFocusOnNextChild(hParent);  WM_UNLOCK();  return r;}#else  void WM_SetFocusOnNextChild_C(void) {} /* avoid empty object files */#endif