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20 lines
1,003 B
Markdown
20 lines
1,003 B
Markdown
The [_HEIGHT](_HEIGHT) function returns the height of an image handle or of the current write page.
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## Syntax
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> columns& = [_HEIGHT](_HEIGHT)[(imageHandle&)]
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## Description
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* If imageHandle& is omitted, it's assumed to be the handle of the current [SCREEN](SCREEN) or write page.
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* To get the height of the current program [SCREEN](SCREEN) window use zero for the handle value or nothing: lines& = [_HEIGHT](_HEIGHT)(0) *or* lines& = [_HEIGHT](_HEIGHT)
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* If the image specified by imageHandle& is in text only ([SCREEN](SCREEN) 0) mode, the number of characters per row is returned.
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* If the image specified by imageHandle& is in graphics mode, the number of pixels per row is returned.
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* If imageHandle& is an invalid handle, then an [ERROR Codes](ERROR-Codes) is returned.
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* The last visible pixel coordinate of a program [SCREEN](SCREEN) is **[_HEIGHT](_HEIGHT) - 1**.
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## See Also
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* [_WIDTH (function)](_WIDTH-(function)), [_LOADIMAGE](_LOADIMAGE), [_NEWIMAGE](_NEWIMAGE)
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* [Bitmaps](Bitmaps)
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