Specifying a Test Image
The standard image-compression dialog component provided by Apple supports a test image. As you can see in Figure 3-3 on page 3-7, the dialog box contains a small image along with the other parts of the dialog box. The component uses this image to display the effect of the user's image-compression settings. In this manner, the user can experiment with different settings and see the results of those settings immediately.The component provides three functions that allow you to specify the test image.
Use theSCSetTestImagePictHandlefunction if your test image is stored in a
handle. Use theSCSetTestImagePictFilefunction if your test image is in a picture file. TheSCSetTestImagePixMapfunction sets the test image from a pixel map.
Subtopics
- SCSetTestImagePictHandle
- SCSetTestImagePictFile
- SCSetTestImagePixMap
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