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WM VRNDISABLED: Difference between revisions

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Created page with "This message indicates that the window is being sized, or that a WinLockWindowUpdate has been issued for the window or one of its parent windows. Direct drawing to the window should be suspended. ==Syntax== <pre> param1 VOID mp1; Reserved value.: param2 VOID mp2; Reserved value.: returns ULONG ulReserved; Reserved value, should be 0.: </pre> ==Parameters== ;''mp1'' (VOID) - input: Reserved value. ;''mp2'' (VOID) - input:..."
 
 
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==Parameters==
==Parameters==
;''mp1'' (VOID) - input: Reserved value.
;''mp1'' ([[VOID]]) - input: Reserved value.
;''mp2'' (VOID) - input: Reserved value.
;''mp2'' (VOID) - input: Reserved value.
;''ulReserved'' (ULONG) - returns: Reserved value, should be 0.
 
==Returns==
;''ulReserved'' ([[ULONG]]) - returns: Reserved value, should be 0.


==Remarks==
==Remarks==

Latest revision as of 23:12, 13 April 2025

This message indicates that the window is being sized, or that a WinLockWindowUpdate has been issued for the window or one of its parent windows. Direct drawing to the window should be suspended.

Syntax

param1
    VOID   mp1;      /* Reserved value. */

param2
    VOID   mp2;      /* Reserved value. */

returns
    ULONG  ulReserved; /* Reserved value, should be 0. */

Parameters

mp1 (VOID) - input
Reserved value.
mp2 (VOID) - input
Reserved value.

Returns

ulReserved (ULONG) - returns
Reserved value, should be 0.

Remarks

The window procedure is expected to suspend direct drawing to the window.

Default Processing

The default window procedure takes no action on this message, other than to set ulReserved to 0.