Subj : Main Menu failure in Win98
To   : borland.public.cpp.borlandcpp
From : "BH" <bohiggy@yahoo.com>
Date : Mon Aug 25 2003 04:16 pm

Hi All....peculiar problem here.

We've created the main menu ( and associated submenus ) for our BC++5.02 MDI
app for years using a predefined menu resource in an *.rc file, plus code
like the following... the resulting main menu and "submenus" work well under
WinXP and Win98:

//=====  main menu built from resource file =====
// inside InitMainWindow()....
TMDIClient    *mainClient = new ourAppMDIClient;
TDecoratedMDIFrame * mainFrame = new TDecoratedMDIFrame(Name, OUR_MDI_MENU,
*mainClient, true);
//=====

Lately, we're attempting to build the main menu (and associated
submenus) from text in a database, so we're adding all menu items
in code and handing the main menu over to the app's main frame,
like this:

//===== main menu built from database records =====
//inside InitMainWindow()....
TMDIClient    *appMainClient = new ourAppMDIClient;
TDecoratedMDIFrame * appMainFrame = new TDecoratedMDIFrame(Name, 0,
*mainClient, true);  // no menu resource specified

//later ...after user login, create user-specific main menu
TMenu * mainMenu = new TMenu();
// not shown:
//add main menu items using mainMenu->AppendMenu
TFrameWindow * frameWin = GetApplication()->GetMainWindow();
 frameWin->SetMenu(mainMenu->GetHandle());
//=====

The second way ( building main menu in code using text from database ) works
*GREAT* under winXP but fails under win98 as follows:
All main menu items appear fine, but drop down submenus (i.e. main menu
popups) do not appear when main menu items are clicked.
After clicking a few main menu items in vain, the app bombs
with an illegal operation/GPF in module User.exe (a windows file).
This failure has happened on multiple win98 machines,
yet the same app under WinXP works fine..no problems with menus at all.

We're stumped....any ideas??

Thanks in advance,

BH

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