View source for MMIOM CODEC QUERYNAMELENGTH

{{DISPLAYTITLE:MMIOM_CODEC_QUERYNAMELENGTH}}
This message is sent to the CODEC procedure by [[mmioQueryCODECNameLength]] to request the length of the CODEC name.

==Syntax==
<PRE>
param1
PHCODEC phCODEC; /* Pointer to CODEC handle. */

param2
USHORT usMsg; /* Set to MMIOM_CODEC_QUERYNAMELENGTH. */

param3
LONG lParam1; /* Pointer to the length in bytes of the CODEC name string. */

param4
LONG lParam2; /* This parameter is not used. */
</PRE>

==Parameters==
;''phCODEC'' (P[[HCODEC]]) - input
:Pointer to CODEC handle.

;''usMsg'' ([[USHORT]]) - input
:Set to **MMIOM_CODEC_QUERYNAMELENGTH**.

;''lParam1'' ([[LONG]]) - output
:Pointer to the length in bytes of the CODEC name string.

;''lParam2'' ([[LONG]]) - input
:This parameter is not used.

==Returns==
;''rc'' ([[ULONG]]) - returns
:Return codes indicating success or failure:
:* '''MMIO_SUCCESS''' The information is requested successfully.
:* '''MMIO_ERROR''' An error code is returned.

==Remarks==
This section has no remarks.

[[Category:CODEC Messages]]