WM ERROR

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.