Technical Q&As

QTW 36 - Adding Dissolve Effect Between Frames (1-July-95)

Q When I try to load up a new JPEG image using the QTPic control, the display area goes blank before the next image is displayed. I want to dissolve between images, but I can't retrieve the new image without losing the old one. Is there any way I can add a dissolve effect between images using the QTPIC.VBX?

A Convert all JPEG images into one Movie track, and then select and display individual frames. For non-random display sequences, add pre-dissolved, "between" frames. You can also add searchable text tracks to ease the development of greater user interactivity. Bear in mind that a Visual Basic program has access to the entire set of QuickTime for Windows functions. Just prefix each function name with 'VB' (for example, 'MCDoAction' becomes 'VBMCDoAction').

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