Scale property
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Scale property
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| acProportionalImage as subproperty of JPEGProperties structure.
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| type
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| TJPEGScale = (jsFullSize, jsHalf, jsQuarter, jsEighth);
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| property Scale: TJPEGScale;
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| Determines the size of the JPEG image when it is displayed.
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| Use Scale to optimize performance for previewing an image. jsFullSize displays the image as maximum size, whereas jsEight displays an eighth of the image size, but 8 times faster.
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| TJPEGScale is the type of the Scale property. The following table lists the values of TJPEGScale:
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| Value | Meaning
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| jsFullSize | Displays a full-size image.
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| jsHalf | Displays a half-size image in half the time it takes to display a full-size image.
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| jsQuarter | Displays a quarter-size image in a quarter of the time it takes to display a full-size image.
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| jsEighth | Displays an eighth-size image in an eighth of the time it takes to display a full-size image.
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| Scale it used for reading in files, that is, for decompression.
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| CompressionQuality, Grayscale, Performance, PixelFormat, ProgressiveDisplay, ProgressiveEncoding and Smoothing properties.
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