| QMedia |     | 
| QM_NewChannel | Creates a grabber channel | 
| QM_DisposeChannel | Destroys a grabber channel. | 
| QM_GetGrabberChannels | Returns a grabber's channels. | 
| QM_GetChannelSourceDims | Returns source dimensions of a channel. | 
| QM_GetChannelRect | Returns the channel's bounds. | 
| QM_SetChannelUsage | Changes the channel's usage. | 
| QM_GetChannelUsage | Returns the channel's usage. | 
| QM_ChannelSettingsDialog | Displays the channel configuration dialog. | 
| QM_SetChannelSettings | Configures a channel from BLOB. | 
| QM_GetChannelSettings | Stores channel settings in a BLOB. |