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.