When we are working with effects, however, we need to use the function MakeImageDescriptionForEffect, which allocates a handle to an image description and fills in some of its fields; it also attaches an image description extension to the end of the image description. The result still looks rather meaningless but you might notice a pattern: all video tracks will share the same Type value, as will all sound tracks. As we'll see, this mostly involves writing a few event callback functions or event handlers that are executed when specific types of events occur. These are available from the Control Toolbox—accessible via View Toolbars Control Toolbox in any Office application. Eschewing the syntactical complexity of traditional programming languages, AppleScript is a more natural —almost English-like—scripting language and as such, has particular appeal for those who have little or no programming background but are nevertheless anxious to get the job done.
We want to give our users the opportunity to pick any one of these highlights and view it. Importing Flash Files Let's use this parsing ability to help us overcome some of the limitations of the Flash movie importer. Resizing MainForm or even dragging the splitter bar has the effect of resizing our MediaDisplayPanel. In the next chapter, we'll see how QuickTime can help us do that. Glancing back at our design sketches, we can see that this event has to be wired to our MediaDisplayPanel object. For instance, once the user has selected a set of parameters for an effect, we might want to save them into a file, whence we can retrieve them the next time the application is run. So, for example, if we want to store copyright information, we have qtAnnotationCopyright specifically for that purpose.
Count If Not trkLogo Is Nothing Then trkLogo. Source names are used to Hnk the source tracks to the effects track. We can now add the lines in Listing 8. So a rectangle can usually be compressed into half its original size using this simple bit-packing scheme. And on Windows, at least for desktop purposes, this is very likely to be Microsoft Access.
In this chapter, we're going to see how to work with wired actions and Flash tracks. With panoramas, this has the effect of making the user seem to spin a full circle as if the user were spinning on a rotating stool. We still need to see how to handle window dragging on Windows. The IsQuickTimeAvailable property checks for the presence of QuickTime and returns True if available. Part of the official QuickTime Developer Series, publishing the finest books on QuickTime in cooperation with Apple.
As you can see, we handle only the quit command. A button action list is executed immediately when the specified state transition occurs. Note that no options or filenames are passed to the application. The timecode format is as follows: : :. The kActionFlashTrackSetFlashVariable action requires four parameter atoms: 1 the path to the object to which the variable is attached, 2 the variable name, 3 the new variable value, and 4 a Boolean value that indicates whether to change the focus to the object attached to the variable. QuickTime Toolkit The two QuickTime Toolkit books, which I wrote, grew out of articles that appeared in MacTech magazine from 2000 to 2003.
I do have one quibble with this book. In the former case, the movie can just be saved to its current location, whereas for a new movie we must use a SaveFileDialog to prompt the user for a file name. However, you should have access to volume one or be familiar with its contents to really understand what is going on in this volume. Sizing options for full-screen display mode. Alternate Tracks 315 Getting and Setting a Media's Language A media's language is specified using a 16-bit language code. Archived from the original on December 19, 1996. The next five fields hold information about the state of the movie window at the time it's put into full-screen mode; for instance, the fOrigMovieRect field holds the movie rectangle, and fOrigControllerVis indicates whether the controller bar was visible when we called Begi nFul 1 Screen.
Look in the file Movies. I'll give you a little help, though; shortly we'll see how to handle the zooming menu items. It also added video effects which programmers could apply in real-time to video tracks. QuickTime Toolkit, Volume One: Basic Movie Playback and Media Types, by Tim Monroe. If you trust the source of this document, select Yes and the control will be initialized using your document settings.
The stagEnd tag marks the end of a Flash file and must always be the last tag in the file. Media Inspector for the same movie. The excellence of Chris' book set me to thinking about the general state of QuickTime programming books. We'll also take a look at the wired action introduced in QuickTime 5. The time scale is a property of the movie and may be obtained from the Movie.
Play and stop the movie, click around in the movie controller to change the current time position and adjust the movie volume. As with examples earlier in this chapter, the staging ground between graphic and movie is the clipboard. If the Code field is empty, as will be the case should we add a new record, then the QuickTime Control is unloaded. A Snow Leopard compatible version of QuickTime 7 may also be downloaded from Apple Support website. Q Generators Let's begin our hands-on work with QuickTime video effects by building a movie that uses a generator, or zero-source effect. In the previous chapter, we saw how to handle all of these menu items but the last one, which we'll focus on here.
Let's have a look at a few. The documentation links can be particularly daunting for newbies, however. But knowing what each function does isn't enough to allow a developer to take full advantage of QuickTime. If you click on a cell that is not currently selected, then it becomes the selection, and so SelectionChange will fire, simulating a click event. If you sneakily embed subliminal messages in your advertising clips that only make sense when played backwards, then you might well opt for the LoopIsPalindrome property. Apple responded with a statement that QuickTime 7 for Windows is no longer supported by Apple.