从 App 主菜单栏中的 POPUP 菜单工具栏按钮调用时，OnInitMenuPopup 无法正确初始化

Question

长话短说，假设我的主菜单是一个 CMFCMenuBar 菜单定义如下：

IDR_MAINFRAME MENU
BEGIN
    POPUP "&File"
    BEGIN
        MENUITEM "New",               ID_FILE_NEW
        MENUITEM "Open",              ID_FILE_OPEN
        MENUITEM "Save",              ID_FILE_SAVE
        POPUP "Save As"
        BEGIN
             MENUITEM "Format XXX",                 ID_FILE_SAVEAS_XXX
             MENUITEM SEPARATOR
             MENUITEM "Format YYY",                 ID_FILE_SAVEAS_YYY
             MENUITEM SEPARATOR
             MENUITEM "Format ZZZ",                 ID_FILE_SAVEAS_ZZZ
             MENUITEM "Format WWW",                 ID_FILE_SAVEAS_WWW
        END
        MENUITEM "Close",             ID_FILE_CLOSE
    END
    POPUP "&Object"
    BEGIN
        POPUP "Create object"
        BEGIN
            MENUITEM "Create object...",            ID_CREATE_OBJECT
            MENUITEM "Create object as...",         ID_CREATE_OBJECTAS
        END
        POPUP "Save object"
        BEGIN
            MENUITEM "Save object...",              ID_SAVE_AS_XXX
            MENUITEM "Save object copy",            ID_SAVE_OBJECT_COPY
        END
    END
    MENUITEM "Delete",                      ID_DELETE_OBJECT
    END
END

由于 POPUP 菜单没有 ID（它们的值都是 -1），为了知道我在哪个菜单上进行初始化，我按照上的方法实现了 [=16] 之类的功能=]

bool CMainFrame::IsFileMenu(CMenu* pPopupMenu) const
{
    if(!pPopupMenu);    
       return false;
    return (pPopupMenu->GetMenuItemCount() > 0) && (pPopupMenu->GetMenuItemID(0) == ID_FILE_NEW);
}

bool CMainFrame::IsObjectMenu(CMenu* pPopupMenu) const
{
    if(!pPopupMenu);    
       return false;
    return (pPopupMenu->GetMenuItemCount() > 0) && (pPopupMenu->GetMenuItemID(2) == ID_DELETE_OBJECT);
}

菜单初始化如下：

void CMainFrame::OnInitMenuPopup(CMenu* pPopupMenu, UINT nIndex, BOOL bSysMenu) 
{
    if(!license.supports("SaveAsFile"))
    {
         if(IsFileMenu())
         {
              //code to find ID_FILE_SAVEAS_XXX parent menu ("Save As"), then recursively delete all its descendants and itself
         }

         if(IsObjectMenu())
         {
            for(int i = 0; i < pPopupMenu->GetMenuItemCount();i++)
            {
                MENUITEMINFO MenuItemInfo;
                memset(&MenuItemInfo, 0, sizeof(MENUITEMINFO));
                MenuItemInfo.cbSize = sizeof (MENUITEMINFO);    // must fill up this field
                MenuItemInfo.fMask = MIIM_SUBMENU;  

                if (!pPopupMenu->GetMenuItemInfo(i, &MenuItemInfo, TRUE))
                    continue;

                CMenu* SubMenu = pPopupMenu->GetSubMenu(i);

                if (SubMenu != NULL)
                {
                    memset(&MenuItemInfo, 0, sizeof(MENUITEMINFO));
                    MenuItemInfo.cbSize = sizeof (MENUITEMINFO);
                    MenuItemInfo.fMask = MIIM_ID | MIIM_TYPE;

                    for(int j=0; j<SubMenu->GetMenuItemCount() ;j++ )
                    {
                        SubMenu->GetMenuItemInfo(j, &MenuItemInfo, TRUE);

                        if (MenuItemInfo.wID == ID_CREATE_OBJECTAS)
                        {
                            for (int i=0; i<m_custom_objects.GetSize(); i++)
                                pPopup->AppendMenu(MF_STRING | MF_ENABLED, WM_MENU_CUSTOM_OBJECTS_BEGIN + i, (LPCTSTR) m_custom_objects[i].GetName() );

                            found= true;
                            break;
                        }
                    }

                   if(found)
                       break;
                }
            }    
        }
    }

    __super::OnInitMenuPopup(pPopupMenu, nIndex, bSysMenu);
}

注意 ID_FILE_SAVEAS_XXX MENUITEM 标识符重复了！由于我不想在支持 "SaveAsFile" 的许可证不存在时删除 "Save Object" POPUP，因此绝对需要确定现在正在处理的菜单。

现在用户已经使用 MFC 自定义对话框创建了一个工具栏，然后他将 "Create Object" POPUP 拖到新的工具栏。当他单击工具栏的这个新按钮时，他会看到 "Create object" 和 "Create object as" 选项，但并不是因为 IsObjectMenu() 条件不满足而未附加自定义对象。当他来自主菜单时，行为完全不同；附加已完成！

当用户单击工具栏的按钮时，我如何编写代码以完成自定义对象的追加？

Answer 1

我并不为自己的代码感到骄傲，但我通过将"Object"的代码与"Create Object"菜单分开来解决了它。

bool CMainFrame::IsCreateObjectMenu(CMenu* pPopupMenu) const
{
    if(!pPopupMenu);    
       return false;
    return (pPopupMenu->GetMenuItemCount() > 0) && (pPopupMenu->GetMenuItemID(0) == ID_CREATE_OBJECT);
}


void CMainFrame::OnInitMenuPopup(CMenu* pPopupMenu, UINT nIndex, BOOL bSysMenu) 
{
    if(!license.supports("SaveAsFile"))
    {
         if(IsFileMenu())
         {
              //code to find ID_FILE_SAVEAS_XXX parent menu ("Save As"), then recursively delete all its descendants and itself
         }

         if(IsObjectMenu())
         {
              // Do things
         }

         if(IsCreateObjectMenu())
         {
             for (int i=0; i<m_custom_objects.GetSize(); i++)
                 pPopupMenu->AppendMenu(MF_STRING | MF_ENABLED, WM_MENU_CUSTOM_OBJECTS_BEGIN + i, (LPCTSTR) m_custom_objects[i].GetName());
         }
    }

    __super::OnInitMenuPopup(pPopupMenu, nIndex, bSysMenu);
}

从 App 主菜单栏中的 POPUP 菜单工具栏按钮调用时，OnInitMenuPopup 无法正确初始化

OnInitMenuPopup does not init correctly when called from a toolbar button that was a POPUP menu in the App main menu bar

visual-c++

mfc

toolbar

popupmenu

mfc-feature-pack