EMWIN listbox背景透明后有一道黑线去不掉 怎么回事？

杜杜_C1WY7

代码如下
#include "DIALOG.h"
#include "MainMenuBK.h"
/*********************************************************************
*
*       Defines
*
**********************************************************************
*/
#define ID_WINDOW_0 (GUI_ID_USER + 0x02)
#define ID_TEXT_0 (GUI_ID_USER + 0x03)
#define ID_LISTBOX_0 (GUI_ID_USER + 0x04)


// USER START (Optionally insert additional defines)
// USER END

/*********************************************************************
*
*       Static data
*
**********************************************************************
*/

// USER START (Optionally insert additional static data)
// USER END

/*********************************************************************
*
*       _aDialogCreate
*/
static const GUI_WIDGET_CREATE_INFO _aDialogCreate[] = {
  { WINDOW_CreateIndirect, "MainMenu", ID_WINDOW_0, 0, 0, 480, 320, 0, 0x0, 0 },
  { TEXT_CreateIndirect, "Text", ID_TEXT_0, 0, 0, 480, 31, 0, 0x64, 0 },
  { LISTBOX_CreateIndirect, "Listbox", ID_LISTBOX_0, -1, 30, 482, 290, 0, 0x0, 0 },
  // USER START (Optionally insert additional widgets)
  // USER END
};

/*********************************************************************
*
*       Static code
*
**********************************************************************
*/
  GUI_BITMAP         Bitmap_Background={480,320,960,16,gImage_MainMenuBK,NULL,GUI_DRAW_BMP565};

// USER START (Optionally insert additional static code)
// USER END

/*********************************************************************
*
*       _cbDialog
*/
static void _cbDialog(WM_MESSAGE * pMsg) {
  WM_HWIN hItem;
  int     NCode;
  int     Id;
  int sel=1;
  GUI_LOGPALETTE      Palette1;/*565*/
  // USER START (Optionally insert additional variables)
  // USER END

  switch (pMsg->MsgId) {
  case WM_INIT_DIALOG:
    //
    // Initialization of 'MainMenu'
    //
    GUI_EnableAlpha(1);
    hItem = pMsg->hWin;

    //
    // Initialization of 'Text'
    //

    hItem = WM_GetDialogItem(pMsg->hWin, ID_TEXT_0);
    WM_SetHasTrans(hItem);
    TEXT_SetTextColor(hItem, GUI_MAKE_COLOR(0x00000000));
    TEXT_SetText(hItem, "Menu");
    TEXT_SetFont(hItem, GUI_FONT_32_1);
    TEXT_SetBkColor  (hItem, 0xFF000000);
    TEXT_SetTextAlign(hItem, GUI_TA_HCENTER | GUI_TA_VCENTER);
    //
    // Initialization of 'Listbox'
    //
    hItem = WM_GetDialogItem(pMsg->hWin, ID_LISTBOX_0);
    WM_SetHasTrans(hItem);
    LISTBOX_AddString(hItem, "Item 0");
    LISTBOX_AddString(hItem, "Item 1");
    LISTBOX_AddString(hItem, "Item 2");
    LISTBOX_AddString(hItem, "Item 3");
    LISTBOX_AddString(hItem, "Item 4");
    LISTBOX_AddString(hItem, "Item 5");
    LISTBOX_AddString(hItem, "Item 6");
    LISTBOX_AddString(hItem, "Item 7");
    LISTBOX_AddString(hItem, "Item 8");
    LISTBOX_AddString(hItem, "Item 9");
    LISTBOX_SetFont(hItem, GUI_FONT_32_1);
    LISTBOX_SetSel(hItem, sel);
    LISTBOX_SetTextColor(hItem, LISTBOX_CI_UNSEL, GUI_MAKE_COLOR(0x00FFFFFF));
    LISTBOX_SetBkColor(hItem, LISTBOX_CI_UNSEL, 0xFF000000);

    // USER START (Optionally insert additional code for further widget initialization)
    // USER END
    break;
    case WM_PAINT:
    GUI_DrawBitmap(&Bitmap_Background, 0, 0);
    break;
  case WM_NOTIFY_PARENT:
    Id    = WM_GetId(pMsg->hWinSrc);
    NCode = pMsg->Data.v;
    switch(Id) {
    case ID_LISTBOX_0: // Notifications sent by 'Listbox'
      switch(NCode) {
      case WM_NOTIFICATION_CLICKED:
        // USER START (Optionally insert code for reacting on notification message)
        // USER END
        break;
      case WM_NOTIFICATION_RELEASED:
        // USER START (Optionally insert code for reacting on notification message)
        // USER END
        break;
      case WM_NOTIFICATION_SEL_CHANGED:
        // USER START (Optionally insert code for reacting on notification message)
        // USER END
        break;
      // USER START (Optionally insert additional code for further notification handling)
      // USER END
      }
      break;
    // USER START (Optionally insert additional code for further Ids)
    // USER END
    }
    break;
  // USER START (Optionally insert additional message handling)
  // USER END
  default:
    WM_DefaultProc(pMsg);
    break;
  }
}

/*********************************************************************
*
*       Public code
*
**********************************************************************
*/
/*********************************************************************
*
*       CreateMainMenu
*/
WM_HWIN CreateMainMenu(void);
WM_HWIN CreateMainMenu(void) {
  WM_HWIN hWin;
//  
//  GUI_DrawBitmap(&Bitmap_Background, 0, 0);
  hWin = GUI_CreateDialogBox(_aDialogCreate, GUI_COUNTOF(_aDialogCreate), _cbDialog, WM_HBKWIN, 0, 0);
  return hWin;}

// USER START (Optionally insert additional public code)
// USER END

eric2013

使用有误，case WM_INIT_DIALOG里面不能调用GUI_EnableAlpha(1)，你要在WM_PAINT消息里面调用。

杜杜_C1WY7

eric2013 发表于 2018-4-25 10:18
使用有误，case WM_INIT_DIALOG里面不能调用GUI_EnableAlpha(1)，你要在WM_PAINT消息里面调用。

改了   然后Menu下面那道线依然存在
感觉像是Listbox的边框

eric2013

杜杜_C1WY7 发表于 2018-4-25 11:10
改了   然后Menu下面那道线依然存在
感觉像是Listbox的边框

listbox显示小点就看出来是不是边框了。

杜杜_C1WY7

eric2013 发表于 2018-4-25 11:30
listbox显示小点就看出来是不是边框了。

确实是边框 这个可以去掉么？

eric2013

杜杜_C1WY7 发表于 2018-4-25 23:07
确实是边框 这个可以去掉么？

这个去不掉。用listbox的自定义回调函数的话，有点麻烦。