添加右键菜单
2014-11-25 00:49 sylar_liang 阅读(297) 评论(0) 编辑 收藏 举报有2种方式添加右键菜单:
1.无需在资源中添加Menu
(1) 在.h中定义HMenu变量,在.cpp中初始化菜单项。
HMenu m_hMenu; // .h中定义 m_hMenu = CreatePopupMenu(); // InitDialog中初始化 MENUITEMINFO mi; mi.cbsize = sizeof(mi); mi.fMask = MIIM_ID | MIIM_STRING; mi.fType = MFT_STRING; mi.fState = MFS_ENABLED; // 使能. MFS_DISABLED(不使能) mi_wID = 1; mi_dwTypeData = _T("Select All"); InsertMenuItem(m_hMenu,0,TRUE,&mi); mi_wID = 2; mi_dwTypeData = _T("Clear"); InsertMenuItem(m_hMenu,1,TRUE,&mi);
(2) 重载右键按下消息 OnRButtonDown
ClientToScreen(&point); // 转换为屏幕坐标 OnContextMenu(this,point);
(3) 重载OnContextMenu函数
mi.cbSize = sizeof(mi); mi.fMask = MIIM_STATE; mi.fState = MFS_ENABLED; SetMenuItemInfo(m_hMenu,2,FALSE,&mi); // 2表示位置 // 此处必须为TPM_RETURNCMD,可以返回0,1,2,3...否则只返回0,1的值 INT cmdID = (INT)TrackPopupMenu(m_hMenu,TPM_RETURNCMD,point.x,point.y,0,this->m_hWnd,NULL); switch(cmdID) { case 1: // select all OnEditSelectAll(); // 响应函数 break; case 2: // copy this->copy(); break; default: break; }
2.在资源文件中添加菜单资源
(1)资源文件中添加弹出菜单资源
(2)添加对应菜单项的响应函数
(3)重载OnContextMenu函数
CMenu menu; menu.LoadMenu(IDR_POPUPMENU); // IDR_POPUPMENU为自定义的弹出菜单ID CMenu *popMenu = menu.GetSubMenu(0); popMenu->EnableMenuItem(ID_EDIT,MF_BYCOMMAND | MF_DISABLE | MF_GRAYED); // 使这一菜单项变灰,失效 popMenu->TrackPopupMenu(TPM_LEFTALIGN | TPM_RIGHTBUTTON,point.x,point.y,this);
// 假如坐标不对,可以重载右键按下,调用ClientToScreen,再调用OnContextMenu