emWin界面刷新

来源：互联网发布：达内php培训课程编辑：程序博客网时间：2024/06/05 20:33

1、在对话框回调函数中定时重绘按键

_cbDialogHome(WM_MESSAGE*  pMsg){Switch(pMsg -> MsgId){Case   WM_INIT_DIALOG:WM_CreateTimer(pMsg -> hWin,0,100,0);//创建窗口定时器Case   WM_PAINT:   //窗口重绘Case   WM_NOTIFY_PARENT://按键消息处理Id = WM_GetId(pMsg -> hWinSrc);//哪个按键NCode = pMsg -> Data.v;//是点击还是松开Switch(Id){Case ID_BUTTON_0:Switch(NCode){Case    WM_NOTIFICATION_CLICKED://点击Case    WM_NOTIFICATION_RELEASED://松开按钮}}Case WM_TIMER:WM_RestartTimer(pMsg -> Data.v,100);//重启定时器，因为窗口定时器是单次的If( I % 10 == 0 ){WM_InvalidateWindow(pMsg -> hWin);//使窗口无效，重绘整个窗口}else{hItem = WM_GetDialogItem(pMsg -> hWin, ID_BUTTON_0);//获取按键句柄WM_InvalidateWindow(hItem);//使按键无效，重绘按键}}}

2、在按键回调函数中刷新按键图片

_cbButtonStart(WM_MESSAGE*  pMsg){Switch(pMsg -> MsgId){Case WM_PAINT:WM_GetClientRect(&Rect);//获取按键矩形If(BUTTON_IsPressed(hWin)){//按键按下}else {GUI_DrawStreamedBitmapAuto(imgLocate[IMG].addr,0,0);//绘制按键}}}

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