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将GD32系列MCU荣获“最佳本土芯片”奖  这篇文章的内容做成TXT文件，开始用GD32来阅读..

利用UCGUI来创建一个multiedit和两个button控件

static const GUI_WIDGET_CREATE_INFO _aDialogCreate[] = {
    { FRAMEWIN_CreateIndirect,  "文本阅读",             0,                       0,  0,  240,320,FRAMEWIN_CF_MOVEABLE,0},
    { MULTIEDIT_CreateIndirect, "MULTIEDIT",         GUI_ID_MULTIEDIT0,       18, 16, 195,239,0,0},
    { BUTTON_CreateIndirect,    "上一页",           GUI_ID_BUTTON0,          18, 261,57, 26, 0,0},
    { BUTTON_CreateIndirect,    "下一页",           GUI_ID_BUTTON1,          154,261,57, 26, 0,0}
};

static void _cbCallback(WM_MESSAGE * pMsg) 
{
    int NCode, Id;
    WM_HWIN hWin = pMsg->hWin;
	  hWinEbook = hWin;
    switch (pMsg->MsgId) 
    {
		    case WM_PAINT:
             PaintDialog(pMsg);
            break;
        case WM_INIT_DIALOG:
             InitDialog(pMsg);
            break;
        case WM_NOTIFY_PARENT:
            Id = WM_GetId(pMsg->hWinSrc); 
            NCode = pMsg->Data.v;        
            switch (Id) 
            {
                case GUI_ID_BUTTON1:
											if(NCode==WM_NOTIFICATION_RELEASED)
											{
													gDirFlag = 0;
												  if(TXT_Info.TXT_Count < TXT_Info.TXT_MaxCount )
  												{
     														TXT_Info.TXT_Count++;
														    TXT_Info.TXT_AddrCount += TXT_Info.TXT_ReadNumber[2];
														    UpdataEbook = 1;
												  }
											}    
											break;
				case GUI_ID_BUTTON0:					            
										if(NCode==WM_NOTIFICATION_RELEASED)
										{
												 if(gDirFlag == 0) gDirFlag = 1;
											   if(TXT_Info.TXT_Count !=  0)
												 {
                              TXT_Info.TXT_Count--;
													    UpdataEbook = 1;
													    if(gDirFlag == 1)
															{
                                   TXT_Info.TXT_AddrCount -= (TXT_BUF_MAX);
																   gDirFlag = 2; 
                              }
															else  if(FlagTable[TXT_Info.TXT_Count] != TXT_BUF_MAX && FlagTable[TXT_Info.TXT_Count + 1] != TXT_BUF_MAX)
															{
                                    TXT_Info.TXT_AddrCount -= (TXT_BUF_MAX - 1);
                              }
															else  if(FlagTable[TXT_Info.TXT_Count] == TXT_BUF_MAX && FlagTable[TXT_Info.TXT_Count + 1] != TXT_BUF_MAX)
															{
                                    TXT_Info.TXT_AddrCount -= (TXT_BUF_MAX - 1);
                              }
															else  if(FlagTable[TXT_Info.TXT_Count] != TXT_BUF_MAX && FlagTable[TXT_Info.TXT_Count + 1] == TXT_BUF_MAX)
															{
                                    TXT_Info.TXT_AddrCount -= TXT_BUF_MAX;
                              }
															else
															{
                                    TXT_Info.TXT_AddrCount -= TXT_BUF_MAX;
                              }
															
						
                         }													 
										}    
										break;

									}
									break;
        default:
            WM_DefaultProc(pMsg);
    }
}

下面是整体的效果图：