How To Initialize Menus Dynamically (75630)
The information in this article applies to:
- Microsoft Platform Software Development Kit (SDK) 1.0
This article was previously published under Q75630 SUMMARY
Many commercial applications developed for Windows allow the user to
customize the menus of the application. This ability introduces some
complexity when the application must disable particular menu items at
certain times. This article provides a method to perform this task.
Windows sends a WM_INITMENUPOPUP message just before a pop-up menu is
displayed. The parameters to this message provide the handle to the menu
and the index of the pop-up menu on the main menu.
To process this message properly, each menu item must have a unique
identifier. When the application starts up, it creates a mapping array that
lists the items on each menu. When the WM_INITMENUPOPUP message is
received, the application checks the conditions necessary for each menu
item to be disabled or checked and modifies the menu appropriately.
The application must maintain the mapping array when the user modifies the
menus in any way.
| Modification Type: | Minor | Last Reviewed: | 7/11/2005 |
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| Keywords: | kbhowto kbMenu kbWndw KB75630 |
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