多文档的文档选项快捷菜单(vc2008sp1)

最新推荐文章于 2017-01-23 23:41:23 发布

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最新推荐文章于 2017-01-23 23:41:23 发布

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分类专栏： 2.2 MFC9.0版本文章标签：文档 menu parameters null c

本文链接：https://blog.youkuaiyun.com/akof1314/article/details/5597075

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Called by the framework before a shortcut menu is displayed on one of the tabs. Valid for MDI Tabbed Groups only.

virtual BOOL OnShowMDITabContextMenu(
   CPoint point,
   DWORD dwAllowedItems,
   BOOL bTabDrop
);

Parameters

[in] point
    The location of the menu in screen coordinates.

[in] dwAllowedItems
    A bitwise-OR combination of flags that indicates what actions are allowed for the current tab:
        *BCGP_MDI_CREATE_VERT_GROUP - can create a vertical tab group.
        *BCGP_MDI_CREATE_HORZ_GROUP - can create a horizontal tab group.
        *BCGP_MDI_CAN_MOVE_PREV - can move a tab to the previous tab group.
        *BCGP_MDI_CAN_MOVE_NEXT - can move a tab to the next tab group.
        *BCGP_MDI_CAN_BE_DOCKED - switch a tabbed document to docked state (relevant for tabbed documents only).

[in] bTabDrop
    TRUE to display the menu as a result of dragging the tab onto another tabbed group. FALSE to display the menu as a shortcut menu on the currently active tab.

Return Value
Override this method in a CMDIFrameWndEx Class-derived class.

有关的信息可以参考VisualStudioDemo Sample 例子，下面是例子截图：

MSDN上的例子为：

BOOL CMainFrame:: OnShowMDITabContextMenu( CPoint point, DWORD dwAllowedItems, BOOL bDrop)
{
    CMenu menu;
    VERIFY( menu.LoadMenu( bDrop ? IDR_POPUP_DROP_MDITABS : IDR_POPUP_MDITABS));

    CMenu* pPopup = menu.GetSubMenu( 0 );
    ASSERT( pPopup != NULL );

    if (( dwAllowedItems & AFX_MDI_CREATE_HORZ_GROUP) == 0 )
    {
        pPopup-> DeleteMenu( ID_MDI_NEW_HORZ_TAB_GROUP, MF_BYCOMMAND);
    }

    if (( dwAllowedItems & AFX_MDI_CREATE_VERT_GROUP) == 0 )
    {
        pPopup-> DeleteMenu( ID_MDI_NEW_VERT_GROUP, MF_BYCOMMAND);
    }

    if (( dwAllowedItems & AFX_MDI_CAN_MOVE_NEXT) == 0 )
    {
        pPopup-> DeleteMenu( ID_MDI_MOVE_TO_NEXT_GROUP, MF_BYCOMMAND);
    }

    if (( dwAllowedItems & AFX_MDI_CAN_MOVE_PREV) == 0 )
    {
        pPopup-> DeleteMenu( ID_MDI_MOVE_TO_PREV_GROUP, MF_BYCOMMAND);
    }

    if (( dwAllowedItems & AFX_MDI_CAN_BE_DOCKED) == 0 )
    {
        pPopup-> DeleteMenu( ID_MDI_TABBED_DOCUMENT, MF_BYCOMMAND);
    }

    CMFCPopupMenu* pPopupMenu = new CMFCPopupMenu;
    pPopupMenu-> SetAutoDestroy( FALSE );
    pPopupMenu-> Create( this , point.x, point.y, pPopup-> GetSafeHmenu());

    return TRUE ;
}

然后在在MainFrm.h中，添加声明virtual BOOL OnShowMDITabContextMenu(CPoint point, DWORD dwAllowedItems, BOOL bDrop);即可。

其他资料：http://hi.baidu.com/20794027/blog/item/6cffdbdb3285c06ed0164ed2.html