emwin图片不显示在新建的对话框中

田志

如图，在新建的对话框中，使用GUI_DrawBitmap函数在对话框内部显示一个图片，但是实际效果是 显示了图片但一瞬间就被对话框覆盖了。求有经验的大神帮忙解决一下

随风

要在wm_paint 消息了绘制

田志

随风 发表于 2017-7-3 13:58
要在wm_paint 消息了绘制

我放在WM_PAINT里也不行额。

1. static void _cbDialogQQ(WM_MESSAGE * pMsg) {
   
2.   const void * pData;
   
3.   WM_HWIN      hItem;
   
4.   U32          FileSize;
   
5.   int          NCode;
   
6.   int          Id;
   
7.   // USER START (Optionally insert additional variables)
   
8.   // USER END
   
9. 
   
10.   switch (pMsg->MsgId) {
    
11.   case WM_INIT_DIALOG:
    
12.     //
    
13.     // Initialization of 'About'
    
14.     //
    
15.     hItem = pMsg->hWin;
    
16.     FRAMEWIN_SetTitleHeight(hItem, 30);
    
17.     FRAMEWIN_SetFont(hItem, GUI_FONT_20B_ASCII);
    
18.                 FRAMEWIN_AddCloseButton(hItem,FRAMEWIN_BUTTON_RIGHT,0);
    
19.                
    
20. 
    
21.     //
    
22.     // Initialization of 'MCU: STM32F429IGT6'
    
23.     //
    
24.     hItem = WM_GetDialogItem(pMsg->hWin, ID_TEXT_0);
    
25.     TEXT_SetFont(hItem, GUI_FONT_COMIC18B_ASCII);
    
26.     //
    
27.     // Initialization of 'RTOS: ucos-III'
    
28.     //
    
29.     hItem = WM_GetDialogItem(pMsg->hWin, ID_TEXT_1);
    
30.     TEXT_SetFont(hItem, GUI_FONT_COMIC18B_ASCII);
    
31.     //
    
32.     // Initialization of 'GUI: STemwin 5.28'
    
33.     //
    
34.     hItem = WM_GetDialogItem(pMsg->hWin, ID_TEXT_2);
    
35.     TEXT_SetFont(hItem, GUI_FONT_COMIC18B_ASCII);
    
36.     //
    
37.     // Initialization of 'Version: v1.1'
    
38.     //
    
39.     hItem = WM_GetDialogItem(pMsg->hWin, ID_TEXT_3);
    
40.     TEXT_SetFont(hItem, GUI_FONT_COMIC18B_ASCII);
    
41.     //
    
42.     // Initialization of 'Developer: tianzhi'
    
43.     //
    
44.     hItem = WM_GetDialogItem(pMsg->hWin, ID_TEXT_4);
    
45.     TEXT_SetFont(hItem, GUI_FONT_COMIC18B_ASCII);
    
46.     //
    
47.     // Initialization of 'More...'
    
48.     //
    
49.     hItem = WM_GetDialogItem(pMsg->hWin, ID_BUTTON_0);
    
50.     BUTTON_SetFont(hItem, GUI_FONT_16B_ASCII);
    
51.                
    
52. 
    
53.     // USER START (Optionally insert additional code for further widget initialization)
    
54.     // USER END
    
55.     break;
    
56.   case WM_NOTIFY_PARENT:
    
57.     Id    = WM_GetId(pMsg->hWinSrc);
    
58.     NCode = pMsg->Data.v;
    
59.     switch(Id) {
    
60.     case ID_BUTTON_0: // Notifications sent by 'More...'
    
61.       switch(NCode) {
    
62.       case WM_NOTIFICATION_CLICKED:
    
63.         // USER START (Optionally insert code for reacting on notification message)
    
64.         // USER END
    
65.         break;
    
66.       case WM_NOTIFICATION_RELEASED:
    
67.         // USER START (Optionally insert code for reacting on notification message)
    
68.         // USER END
    
69.         break;
    
70.       // USER START (Optionally insert additional code for further notification handling)
    
71.       // USER END
    
72.       }
    
73.       break;
    
74.     // USER START (Optionally insert additional code for further Ids)
    
75.     // USER END
    
76.     }
    
77.     break;
    
78.   // USER START (Optionally insert additional message handling)
    
79.   // USER END
    
80.         case WM_PAINT:
    
81.                 GUI_DrawBitmap(&bmLOGO_PNG,290,300);
    
82.                 break;
    
83.   default:
    
84.     WM_DefaultProc(pMsg);
    
85.     break;
    
86.   }
    
87. }
    

复制代码

田志

解决了，放在wm_paint 里面确实解决了问题，图片坐标用相对父窗的