View source for SLM QUERYTICKSIZE

This message queries for the size of a tick mark for the primary scale. All tick marks default to a size of 0 (invisible) if not set by the application with the [[SLM_SETTICKSIZE]] message.
==Syntax==
<PRE>
param1
USHORT usTickNum;   /* Tick mark location. */

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

returns
USHORT usTickSize;   /* Tick mark length. */
</PRE>

==Parameters==
;usTickNum ([[USHORT]]) - Input
: Specifies the tick mark location to query for the size.
;ulReserved ([[ULONG]]) - Input
: Reserved value, should be 0.

==Returns==
;usTickSize ([[USHORT]]) - returns
: Specifies the length of the tick mark at the position queried, in pixels. If this value is 0, the tick mark is invisible.
: If the SLDERR_INVALID_PARAMETERS error is returned, an error occurred. The [[WinGetLastError]] function may return the following error:
::PMERR_PARAMETER_OUT_OF_RANGE.

==Remarks==
The application uses this message to query a scale along the slider to indicate what tick marks, tick mark sizes, or both are currently set for the slider.

==Default Processing==
The default window procedure does not expect to receive this message and therefore takes no action on it other than to return 0.

[[Category:Messages]]