QuickTime 4 Reference

Standard Parameter Dialog Box Options

These constants are used to control how parameter values are entered into a standard parameters dialog box that is generated when you call the function ImageCodecCreateStandardParameterDialog .



 
enum {

    pdOptionsCollectOneValue,

    pdOptionsAllowOptionalInterpolations

}

Parameters that are flagged as kAtomInterpolateIsOptional in their parameter description can contain single values or tweens. These constants are used to specify that the dialog box should allow entry of either a single value or a pair of values for such parameters.

Constant descriptions

pdOptionsCollectOneValue: This value indicates that only one value should be entered for parameters that can optionally be tweened.
pdOptionsAllowOptionalInterpolations: This value indicates that optionally-tweened parameters should be displayed with a user interface that allows the entry of tweened values.