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WM QUERYHELPINFO

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Revision as of 04:34, 18 April 2025 by Martini (talk | contribs) (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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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.

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