WM CTLCOLORCHANGE

This message is sent to all windows when a change is made to the control colors by the WinSetControlColors function. The message is sent only if an application or global default color is changed.

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

ulReserved (ULONG) - returns

Reserved value, should be 0.

Remarks

This message is sent by the system when a default control color is changed. System control windows will repaint themselves with the new colors when they receive this message.

Default Processing

The default window procedure takes no action on this message, other than to set ulReserved to the default value of FALSE.