Dialog Item Specific Attributes
Certain dialog items may have type-specific attributes in addition to the default attributes for dialog items:
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Attribute types are expressed as strings in ACL (for example, "EXPAND"), and are not case sensitive.
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• COLLAPSE — A callback function that is called to when an listtag is collapsed in an outlist item.
• ENABLE — A callback function that is called to enable or disable menu items before a menu is opened.
• EXPAND — A callback function that is called when a listtag is expanded in an outlist item.
• EXTRAIMGCB — A callback function that is called when the extra image of an outlist item is clicked with the left mouse button.
• KEYBOARD — A callback function that is called when a keyboard key is pressed for an outlist item.
• LIST_COUNT — An integer for items which contain lists. Contains the number of items in the list. Setting the value extends or truncates the list as appropriate.
• ON — An integer (zero or non-zero) representing the check status of a checkbox menu item or checkbox toolbar button.
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