QMedia Grabber channel commands |

### QM_GetGrabberChannels

QM_GetGrabberChannels(areaRef; channelRefs; channelTypes):error
| areaRef | Longint | Grabber area reference
| channelRefs | Array longint | Channel references
| channelTypes | Array string | Channel types
| error | Longint | Error result

Returns the channel list of a grabber plug-in area.

The grabber plug-in area is specified by areaRef.

Parameter channelRef is the reference to the channel. The channel reference must have been previously obtained with a call to QM_NewChannel.

Parameters channelRefs and channelTypes receive the IDs and types of all channels respectively.

QMedia defines the following constants for identifying channel types:

qm_VideoMediaType | "vide" | Video media type
qm_SoundMediaType | "soun" | Sound media type

Example

`ARRAY LONGINT($channelRefs;0)` `ARRAY STRING(4;$channelTypes;0)` `` `$error:=QM_GetGrabberChannels(xGrabber;$channelRefs;$channelTypes)` ``

Related commands

QM_NewChannel | Creates a grabber channel
QM_DisposeChannel | Destroys a grabber channel.

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