MMIOM CODEC QUERYNAMELENGTH

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

Syntax

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. */

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.

Remarks

This section has no remarks.