QuickTime 4 Reference

Constants

This section describes the new constants provided by the Image Compression Manager.



 
/* alpha channel graphics modes */

enum {

    graphicsModeStraightAlpha       = 256,

    graphicsModePreWhiteAlpha       = 257,

    graphicsModePreBlackAlpha       = 258,

    graphicsModeStraightAlphaBlend  = 260

};



 
/* fieldFlags for the ImageFieldSequenceExtractCombine function */

enum {

    evenField1ToEvenFieldOut        = 1<<0,

    evenField1ToOddFieldOut         = 1<<1,

    oddField1ToEvenFieldOut         = 1<<2,

    oddField1ToOddFieldOut          = 1<<3,

    evenField2ToEvenFieldOut        = 1<<4,

    evenField2ToOddFieldOut         = 1<<5,

    oddField2ToEvenFieldOut         = 1<<6,

    oddField2ToOddFieldOut          = 1<<7

};