wm_getbkcolor.c

来自「uCGUI」· C语言 代码 · 共 43 行

/*************************************************************************************************************
                                                   uC/GUI
                                               嵌入式通用图形软件
File        : WM_GetBkColor.c
Purpose     : Windows manager, submodule
************************************************************************************************************/


#include "WM_Intern.H"

#if GUI_WINSUPPORT    /* If 0, WM will not generate any code */

/*
********************************************************************
*
*                    WM_GetClientColor
*
********************************************************************

Purpose:
  Return the clients background color.
  If a window does not define a background color, the default
  procedure returns GUI_INVALID_COLOR

*/

        
GUI_COLOR WM_GetBkColor(WM_HWIN hObj) {
  if (hObj) {
    WM_MESSAGE Msg;
    Msg.MsgId  = WM_GET_BKCOLOR;
    WM_SendMessage(hObj, &Msg);
    return Msg.Data.Color;
  }
  return GUI_INVALID_COLOR;
}

#else

void WM_GetBkColor_C(void) {} /* avoid empty object files */

#endif /* WM_MAX_WINDOW */