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Revision as of 22:35, 12 March 2010 by
The _HEIGHT function returns the height of an image handle or current write page.
result& = _HEIGHT[(imageHandle&)]
- If imageHandle& is omitted, it's assumed to be the handle of the current write page.
- If the image specified by imageHandle& is in text mode, the number of characters per column is returned.
- If the image specified by imageHandle& is in graphics mode, the number of pixels per column is returned.
- If imageHandle& is an invalid handle, then an invalid handle error is returned.