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FileStart and FileSize properties

These properties set where the image data are located when the binary safearray is specified as first parameter in GetFileDimensions and ReadImage functions.

FileStart
Specifies the index of array element where the image data begins. The default value is zero. The index value is zero-based.
FileSize
Specifies the size of image data, in bytes. The zero value means the whole safearray will be processed as image file.
Example
This example sets the image data starting with array element number 5 and with size 64Kb.

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Set g=CreateObject("shotgraph.image")
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g.FileStart=5
g.FileSize=64*1024
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