WM QUERYHELPINFO: Difference between revisions
Created page with "This message returns the help instance associated with a frame window. ==Syntax== <pre> param1 ULONG ulReserved; →Reserved value, should be 0.: param2 ULONG ulReserved; →Reserved value, should be 0.: </pre> ==Parameters== ;''ulReserved'' (ULONG) - input: Reserved value, should be 0. ;''ulReserved'' (ULONG) - input: Reserved value, should be 0. ==Returns== ;''lhelpinfo'' (LONG) - returns: Help information. :0: No help information associated with th..." |
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Latest revision as of 03:34, 18 April 2025
This message returns the help instance associated with a frame window.
Syntax
param1
ULONG ulReserved; /* Reserved value, should be 0. */
param2
ULONG ulReserved; /* Reserved value, should be 0. */
Parameters
- ulReserved (ULONG) - input
- Reserved value, should be 0.
- ulReserved (ULONG) - input
- Reserved value, should be 0.
Returns
- lhelpinfo (LONG) - returns
- Help information.
- 0: No help information associated with the window.
- Other: The help information associated with the window.
Default Processing
The default window procedure takes no action on this message, other than to set lhelpinfo to 0.