Jump to content

WM ERROR

From EDM2

Revision as of 17:48, 15 April 2025 by Martini (talk | contribs) (Created page with "This message occurs when an error is detected in a WinGetMsg or a WinPeekMsg function. ==Syntax== <pre> param1 USHORT userrorcode; →Error code.: param2 ULONG ulReserved; →Reserved value, should be 0.: </pre> ==Parameters== ;''userrorcode'' (USHORT) - input: Error code. ;''ulReserved'' (ULONG) - input: Reserved value, should be 0. ==Returns== ;''ulReserved'' (ULONG) - returns: Reserved value, should be 0. ==Remarks== The application can...")

(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)

This message occurs when an error is detected in a WinGetMsg or a WinPeekMsg function.

Syntax

param1
    USHORT userrorcode; /* Error code. */

param2
    ULONG  ulReserved;  /* Reserved value, should be 0. */

Parameters

userrorcode (USHORT) - input: Error code.
ulReserved (ULONG) - input: Reserved value, should be 0.

Returns

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

Remarks

The application can detect the error situation after the WinGetMsg or the WinPeekMsg function and before the WinDispatchMsg function.

Default Processing

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

Retrieved from "https://www.edm2.com/index.php?title=WM_ERROR&oldid=85322"

Messages