EMWIN数字软键盘设计

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最近学习stm32的emwin界面，编写了一个数字软键盘的功能，其中遇到了一些问题，也学到了一些经验。我想要实现的功能是在如图所示的界面下，点击文本框弹出软键盘，能够通过软键盘输入0到9和小数点，tab键实现下一格，
输入完毕后点击enter关闭软键盘。
一开始用FRAMWIN工具做了窗口和键盘两个界面，通过判断点击文本框调用软键盘本身是没有输入聚焦的，当采用BUTTON_SetFocussable(hItem, 0)将按键禁止聚焦后，就可以将焦点聚集在文本框上，而如果使用FRAMWIN控件，无法对FRAMWIN窗口禁止聚焦，所以在输入时焦点会聚集在键盘从而无法将键值发送到文本框。
下面是键盘与界面的回调函数

   static void _cbDialogKeyboard(WM_MESSAGE * pMsg) {  GUI_RECT r;  unsigned i;  int     NCode;  unsigned Id;  int     Pressed;  WM_HWIN hItem;  WM_HWIN hDlg;    Pressed = 0;    hDlg = pMsg->hWin;  switch (pMsg->MsgId) {        case WM_PAINT:        WM_GetClientRect(&r);         GUI_SetColor(0x000000);        GUI_DrawRect(r.x0, r.y0, r.x1, r.y1);        GUI_SetColor(0xffffff);        GUI_DrawHLine(r.y0 + 1, r.x0 + 1, r.x1 - 2);            GUI_DrawVLine(r.x0 + 1, r.y0 + 1, r.y1 - 2);        GUI_SetColor(0x555555);        GUI_DrawHLine(r.y1-1, r.x0 + 1, r.x1 - 1);         GUI_DrawVLine(r.x1-1, r.y0 + 1, r.y1 - 2);         break;        case WM_INIT_DIALOG:              for (i = 0; i < GUI_COUNTOF(_aDialogKeyboard) - 1; i++) {                hItem = WM_GetDialogItem(hDlg, GUI_ID_USER + i);                BUTTON_SetFocussable(hItem, 0);     }    WM_GetDialogItem(hDlg, GUI_ID_USER + 12);      //Ê²Ã´ÒâË¼    break;          case WM_NOTIFY_PARENT:        Id  = WM_GetId(pMsg->hWinSrc);          NCode = pMsg->Data.v;           switch (NCode) {            case WM_NOTIFICATION_CLICKED:                   Pressed = 1;            case WM_NOTIFICATION_RELEASED:                  if ((Id >= GUI_ID_USER) && (Id <= (GUI_ID_USER + GUI_COUNTOF(_aDialogKeyboard) - 2))) {        int Key;        if (Id < GUI_ID_USER + 11) {          char acBuffer[10];          BUTTON_GetText(pMsg->hWinSrc, acBuffer, sizeof(acBuffer)); /* Get the text of the button */          Key = acBuffer[0];        }         if (Id == GUI_ID_USER + 11) {            Key = GUI_KEY_DELETE;         }        if (Id == GUI_ID_USER + 12) {            Key = GUI_KEY_TAB;            }        GUI_SendKeyMsg(Key, Pressed);                                      }      if (Id == GUI_ID_USER + 13){          WM_DeleteWindow(hDlg);      }      break;    }  default:    WM_DefaultProc(pMsg);  }}static void _cbDialogPZT(WM_MESSAGE * pMsg) {    int     i;      int     NCode;    int     Id;    WM_HWIN hDlg;    WM_HWIN hItem;    hDlg = pMsg->hWin;  switch (pMsg->MsgId)     {    case WM_INIT_DIALOG:    FRAMEWIN_SetFont(hDlg,&GUI_Font24B_ASCII);    FRAMEWIN_SetTextAlign(hDlg,GUI_TA_VCENTER|GUI_TA_CENTER);    FRAMEWIN_AddCloseButton(hDlg, FRAMEWIN_BUTTON_RIGHT, 0);    FRAMEWIN_AddMaxButton(hDlg, FRAMEWIN_BUTTON_RIGHT, 1);    FRAMEWIN_AddMinButton(hDlg, FRAMEWIN_BUTTON_RIGHT, 2);    FRAMEWIN_SetTitleHeight(hDlg,30);    for (i = 14; i < 30; i++) {            EDIT_EnableBlink(WM_GetDialogItem(hDlg, GUI_ID_USER + i), 500, 1);            hItem = WM_GetDialogItem(hDlg, GUI_ID_USER + i);              EDIT_SetText(hItem, "");           }                       break;    case WM_NOTIFY_PARENT:       Id = WM_GetId(pMsg->hWinSrc);        NCode = pMsg->Data.v;            switch (NCode) {        case WM_NOTIFICATION_RELEASED:                  if ((Id >= GUI_ID_USER + 14) && (Id <= GUI_ID_USER + 29))  {                Keyboard();            }            if (Id == GUI_ID_OK){                WM_DeleteWindow(hDlg);            }            break;    }    break;   default:       WM_DefaultProc(pMsg);    }}

在模拟器上调试成功后，烧进stm32时发现按键盘按键时，按一下按键键盘界面就会隐藏到显示界面后面去了，于是采用WM_SetStayOnTop(hWin, 1)函数使键盘界面始终保持在最前面。

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