QCCompositionPickerViewDelegate Protocol Reference
(informal protocol)
| Framework | /System/Library/Frameworks/Quartz.framework/Frameworks/QuartzComposer.framework |
| Companion guide | |
| Declared in | QCCompositionPickerView.h |
Overview
The QCCompositionPickerViewDelegate informal protocol defines methods that allow your application to respond to changes in a composition picker view (a QCCompositionPickerView object).
Tasks
Responding to Composition Selections
Responding to Animation State Changes
Instance Methods
compositionPickerView:didSelectComposition:
Performs custom tasks when the selected composition in the composition picker view changes.
- (void) compositionPickerView:(QCCompositionPickerView*)pickerView didSelectComposition:(QCComposition*)composition
Parameters
- pickerView
The composition picker view in which the selection changed.
- composition
The selected composition or
nilif the previously selected composition is no longer selected.
Discussion
Quartz Composer invokes this method when the selected composition in the composition picker view changes. Implement this method if you want to perform custom tasks at that time.
Availability
- Available in Mac OS X v10.5 and later.
Declared In
QCCompositionPickerView.hcompositionPickerViewDidStartAnimating:
Performs custom tasks when the composition picker view starts animating a composition.
- (void) compositionPickerViewDidStartAnimating:(QCCompositionPickerView*)pickerView
Parameters
- pickerView
The composition picker view in which the composition started animating.
Discussion
Quartz Composer invokes this method when the composition picker view starts animating a composition. Implement this method if you want to perform custom tasks at that time.
Availability
- Available in Mac OS X v10.5 and later.
Declared In
QCCompositionPickerView.hcompositionPickerViewWillStopAnimating:
Performs custom tasks when the composition picker view stops animating a composition.
(void) compositionPickerViewWillStopAnimating:(QCCompositionPickerView*)pickerView
Parameters
- pickerView
The composition picker view in which the composition stopped animating.
Discussion
Quartz Composer invokes this method whenever the composition picker view stops animating a composition. Implement this method if you want to perform custom tasks at that time.
Availability
- Available in Mac OS X v10.5 and later.
Declared In
QCCompositionPickerView.h
© 2007 Apple Inc. All Rights Reserved. (Last updated: 2007-05-09)