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MMIOM_CODEC_QUERYNAMELENGTH

From EDM2

This message is sent to the CODEC procedure by mmioQueryCODECNameLength to request the length of the CODEC name.

Syntax

param1
PHCODEC phCODEC;
param2
USHORT usMsg;
param3
LONG lParam1;
param4
LONG lParam2;

Parameters

phCODEC (PHCODEC) - 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.
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