Grabber channel commands
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QMedia
Grabber channel commands
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| QM_NewChannel(areaRef; channelRef; channelType):error | |||
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areaRef | Longint | Grabber area reference |
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channelRef | Longint | Channel reference |
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channelType | String4 | Channel type |
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error | Longint | Error result |
Creates a new input channel and attaches it to a grabber plug-in area.
The grabber plug-in area is specified by areaRef.
Parameter channelRef receives a reference to the channel.
Parameter channelType specifies the type of the channel. The following predefined constants can be used:
| qm_VideoMediaType | "vide" | Video media type |
| qm_SoundMediaType | "soun" | Sound media type |
Example
`Add a video channel to the grabber C_LONGINT($videoChannel) $error:=QM_NewChannel (xGrabber;$videoChannel;qm_VideoMediaType) |
Related commands
| QM_DisposeChannel | Destroys a grabber channel. |
| QM_GetGrabberChannels | Returns a grabber's channels. |