关闭对话框还显示的疑惑

冯超 · 发表于 2018-3-30 11:23:56

对话框回调函数执行GUI_EndDialog后界面就不该显示对话框了吧？我用模拟器是可以的，关闭对话框后只显示背景窗口，但是我在IAR工程里面执行相同的代码对话框的内容还是显示？请教各位大佬，这是什么原因？小弟先拜谢了。

具体代码如下：
#define ID_FRAMEWIN_0 (GUI_ID_USER + 0x00)
#define ID_EDIT_0    (GUI_ID_USER + 0x01)
#define ID_EDIT_1    (GUI_ID_USER + 0x02)

#define WM_UPDATE (WM_USER + 0x00) /* 自定义消息 */

/*
*********************************************************************************************************
*                         GUI_WIDGET_CREATE_INFO类型数组
*********************************************************************************************************
*/
static const GUI_WIDGET_CREATE_INFO _aDialogCreate[] =
{
{ FRAMEWIN_CreateIndirect, "Framewin", ID_FRAMEWIN_0, 0, 0, 160, 128, 0, 0x64, 0 },
{ EDIT_CreateIndirect, "Edit", ID_EDIT_1, 38, 49, 81, 27, 0, 0x64, 0 },
};

/*
*********************************************************************************************************
* 函数名: _cbDialog
* 功能说明: 对话框回调函数
* 形参: pMsg  回调参数
* 返回值: 无
*********************************************************************************************************
*/
static void _cbDialog(WM_MESSAGE * pMsg)
{
WM_HWIN hItem;
int    NCode;
int    Id;
      WM_HWIN hDlg;

      hDlg = pMsg->hWin;

switch (pMsg->MsgId)
{
case WM_INIT_DIALOG:

//
// 初始化框架窗口
//
hItem = pMsg->hWin;
FRAMEWIN_SetFont(hItem, GUI_FONT_32B_ASCII);
FRAMEWIN_SetTextAlign(hItem, GUI_TA_HCENTER | GUI_TA_VCENTER);
FRAMEWIN_SetText(hItem, "armfly");

//
// 初始化编辑框
//
//hItem = WM_GetDialogItem(pMsg->hWin, ID_EDIT_0);
//EDIT_SetText(hItem, "1024");
//EDIT_SetFont(hItem, GUI_FONT_24B_ASCII);

//
// 初始化编辑框
//
hItem = WM_GetDialogItem(pMsg->hWin, ID_EDIT_1);
EDIT_SetText(hItem, "1024");
EDIT_SetFont(hItem, GUI_FONT_24B_ASCII);
                     EDIT_SetTextAlign(hItem, GUI_TA_LEFT | GUI_TA_VCENTER);

                     EDIT_SetSel(hItem, 0, -1);  /* 设置选中编辑框中所有文本 */

break;
      case  WM_UPDATE:
                     hItem = WM_GetDialogItem(pMsg->hWin, ID_EDIT_1);
                 EDIT_SetText(hItem, "1356");

      break;
case WM_KEY:
                     switch (((WM_KEY_INFO*)(pMsg->Data.p))->Key)
                     {
                     case GUI_KEY_ESCAPE:
                           GUI_EndDialog(hDlg, 1);
                           break;

                     case GUI_KEY_ENTER:

                           GUI_EndDialog(hDlg, 0);
                           break;
                     }

               break;
case WM_NOTIFY_PARENT:
Id = WM_GetId(pMsg->hWinSrc);
NCode = pMsg->Data.v;
switch(Id)
{
case ID_EDIT_0:
switch(NCode)
{
case WM_NOTIFICATION_CLICKED:
break;

case WM_NOTIFICATION_RELEASED:
break;

case WM_NOTIFICATION_VALUE_CHANGED:
break;
}
break;

case ID_EDIT_1:
switch(NCode)
{
case WM_NOTIFICATION_CLICKED:
break;

case WM_NOTIFICATION_RELEASED:
break;

case WM_NOTIFICATION_VALUE_CHANGED:
break;
}
break;
}
break;
            case WM_PAINT:
                  // PaintWin(pMsg);
            break;

default:
WM_DefaultProc(pMsg);
break;
}
}

/*********************************************************************
*
*    _cbBkWindow
*/
static void _cbBkWindow(WM_MESSAGE * pMsg)
{
  //unsigned i;
  switch (pMsg->MsgId)
  {
  case WM_PAINT:
GUI_SetBkColor(GUI_BLUE);
GUI_Clear();
GUI_SetColor(GUI_WHITE);
GUI_SetFont(&GUI_Font24_ASCII);
GUI_DispStringHCenterAt("Counting Sample", 80, 5);

break;
default:
WM_DefaultProc(pMsg);
}

}

void MainTask(void)
{
   WM_SetCreateFlags(WM_CF_MEMDEV);  // Use memory devices on all windows to avoid flicker
GUI_Init();
  //
  // Check if recommended memory for the sample is available
  //
  if (GUI_ALLOC_GetNumFreeBytes() < RECOMMENDED_MEMORY) {
GUI_ErrorOut("Not enough memory available.");
return;
  }

  WM_SetCallback(WM_HBKWIN, &_cbBkWindow);
  GUI_CreateDialogBox(_aDialogCreate, GUI_COUNTOF(_aDialogCreate), &_cbDialog, 0, 0, 0);

  while(1)
  {
            WM_Exec();
GUI_Exec();
      //GUI_Delay(1000);
GUI_SendKeyMsg(GUI_KEY_ENTER,1); /*直接发消息关闭对话框*/
  }
}