我的YUV播放器MFC小笔记:右键菜单事件和非标题实现鼠标拖动
鼠标右键弹出菜单代码如下:
// 右键菜单 void CYUVPlayerDlg::OnContextMenu(CWnd* pWnd, CPoint point) { // TODO: Add your message handler code here CMenu popMenu; CMenu *pPopup; popMenu.LoadMenu(IDR_MENU2); pPopup=popMenu.GetSubMenu(0); pPopup->EnableMenuItem(ID_R_OPEN, MF_BYCOMMAND|MF_ENABLED); pPopup->EnableMenuItem(ID_R_SETTING, MF_BYCOMMAND|MF_ENABLED); pPopup->EnableMenuItem(ID_R_EXIT, MF_BYCOMMAND|MF_ENABLED); //pPopup->EnableMenuItem(ID_R_SETTING,MF_BYCOMMAND|MF_DISABLED|MF_GRAYED); pPopup->TrackPopupMenu(TPM_LEFTALIGN|TPM_RIGHTBUTTON, point.x,point.y, this); pPopup->Detach(); popMenu.DestroyMenu(); }
其中IDR_MENU2为右键菜单ID。
一般的窗口,只有标题处才可用鼠标拖动,下面代码实现了非标题也可用鼠标拖动。实质上响应OnNcHitTest事件,代码如下:
// 实现非标题也可用鼠标拖动 LRESULT CYUVPlayerDlg::OnNcHitTest(CPoint point) { UINT nHitTest = CDialogEx::OnNcHitTest(point); if ((nHitTest == HTCLIENT) && (::GetAsyncKeyState (MK_LBUTTON) < 0)) nHitTest = HTCAPTION; return nHitTest; //return CDialogEx::OnNcHitTest(point); // not this.... }
2015.8.15晚
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