As revealed by the VC++ team<\/a> some time ago, MFC 9.0 offers support for hiding the menus automatically and manually,\u00a0in accordance with the Aero look and feel. A recent article in the MSDN Magazine<\/a> by Tarek Madkour, explains how: by calling the SetMenuBarVisibility method from CFrameWnd with the AFX_MBV_DISPLAYONFOCUS<\/tt>. What is not told is that works only for SDI applications.<\/p>\n Menus in SDI applications<\/strong>\u00a0<\/p>\n In a SDI application you have a class derived from CFrameWnd<\/tt>, usually called CMainFrame<\/tt>. In the OnCreate()<\/tt> method, after calling CFrameWnd::OnCreate<\/tt>, you can call SetMenuBarVisibility<\/tt>:<\/p>\n AFX_MBV_DISPLAYONFOCUS<\/tt> is defined in afxwin.h:<\/p>\n The result is that the menu is automatically hidden (as can be seen in the image)<\/p>\n and shown only when pressing the ALT key.<\/p>\n Menus in MDI applications<\/strong><\/p>\n The same technique does not work for MDI menus. In such an application you have<\/p>\n Both the main window and the child windows can have menus, but the menu of a child window is shown on the same bar with the menu of the main window. As long as a child window exists the menu of that document is shown. When no child window exists the menu of the main window is shown. Both on the same bar.<\/p>\n Trying to make the menu of the child window(s) hidden by default does not work. Calling SetMenuBarVisibility<\/tt> has no effect:<\/p>\n Calling SetMenuBarVisibility<\/tt> for the main frame results in an assertion failure because the implementation in the CMDIFrameWnd<\/tt> expects the parameter to be always AFX_MBV_KEEPALIVE<\/tt>;\u00a0it doesn’t do anything else, such as calling the function from the base class.<\/p>\n Overriding the method in CMainFrame<\/tt> accept any parameter and call the method in CFrameWnd<\/tt> to bypass CMDIFrameWnd<\/tt> does not have any effect either.<\/p>\n In conclusion MFC 9.0 supports the Aero look-and-feel for the automatically hiding of menus, but only in SDI applications.<\/p>\n","protected":false},"excerpt":{"rendered":" You probably noticed that IE7 or Windows Media Player 11 don’t have the menu shown by default; it only shows up when you press the ALT key. This is one particularity of the look and feel of Windows Vista Aero.\u00a0You can find guidelines about designing menus here: menu guidelines menu design concepts As revealed by … Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","advgb_blocks_editor_width":"","advgb_blocks_columns_visual_guide":"","_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[12,8],"tags":[377,451,453,373],"class_list":["post-59","post","type-post","status-publish","format-standard","hentry","category-mfc","category-windows-programming","tag-aero","tag-c","tag-mfc","tag-vista"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\r\nint CMainFrame::OnCreate(LPCREATESTRUCT lpCreateStruct) \r\n{ \r\n if (CFrameWnd::OnCreate(lpCreateStruct) == -1) \r\n return -1; \r\n\r\n SetMenuBarVisibility(AFX_MBV_DISPLAYONFOCUS); \r\n\r\n \/\/ other stuff here \r\n\r\n return 0; \r\n}<\/pre>\n\r\n\/\/ Frame window menu bar visibility styles \r\n#define AFX_MBV_KEEPVISIBLE 0x01L \/\/ always visible \r\n#define AFX_MBV_DISPLAYONFOCUS 0x02L \/\/ toggle state on ALT \r\n#define AFX_MBV_DISPLAYONF10 0x04L \/\/ display on F10<\/pre>\n
![\"SDI](\"\/blog\/wp-content\/uploads\/2007\/07\/sdimenu_hidden.png\" "\\"SDI")
\u00a0<\/p>\n![\"SDI](\"\/blog\/wp-content\/uploads\/2007\/07\/sdimenu_shown.png\" "\\"SDI")
<\/p>\n\n
\r\nint CChildFrame::OnCreate(LPCREATESTRUCT lpCreateStruct) \r\n{\r\n if (CMDIChildWnd::OnCreate(lpCreateStruct) == -1)\r\n return -1;\r\n\r\n SetMenuBarVisibility(AFX_MBV_DISPLAYONFOCUS);\r\n\r\n return 0;\r\n}<\/pre>\n\r\nvoid CMDIFrameWnd::SetMenuBarVisibility(DWORD dwStyle)\r\n{\r\n ENSURE_ARG(dwStyle == AFX_MBV_KEEPVISIBLE);\r\n ASSERT(m_dwMenuBarVisibility == AFX_MBV_KEEPVISIBLE);\r\n}<\/pre>\n\r\nvoid CMainFrame::SetMenuBarVisibility(DWORD dwStyle)\r\n{\r\n CFrameWnd::SetMenuBarVisibility(dwStyle);\r\n}<\/pre>\n