QMedia Movie track commands |

### QM_SetTrackGraphicsMode

QM_SetTrackGraphicsMode(movieRef; trackID; graphicsMode; opColor):error
| movieRef | Longint | Movie reference
| trackID | Longint | Track ID
| graphicsMode | Longint | Graphics mode
| opColor | Longint | Operation color (rgb)
| error | Longint | Error result

Changes the graphics mode and operation color of a track.

Parameter movieRef is the reference to the movie instance. The movie reference must have been previously obtained with a call to QM_NewMovieFromFile or QM_NewMovieFromURL.

Parameter trackID is the ID of the track.

Parameter graphicsMode specifies the track's graphics mode. QMedia defines the following constants for specifying media types:

qm_DitherCopyMode | 64 |
qm_CopyMode | 0 |
qm_BlendMode | 32 |
qm_TransparentMode | 36 |
qm_StraightAlphaMode | 256 |
qm_PremulWhiteAlphaMode | 257 |
qm_PremulBlackAlphaMode | 258 |
qm_StraightAlphaBlendMode | 260 |
qm_CompositionMode | 259 |
qm_AddPinMode | 33 |
qm_SubPinMode | 35 |

Parameter opColor is the RGB color to be used for bending and transparent modes. It must be expressed as a longint, using 4Dv6's RGB color notation format (0x00RRGGBB - see the SET RGB COLOR 4D command). 4D's RGB color constants can also be used.

Related commands

QM_GetTrackGraphicsMode | Returns the track's graphics mode.

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