Added in 1.9.1


Returns height of text in pixels for the specified font.

If you use a negative number for the font size, it will match the size of fonts in the font dialogs.


text - Text to measure.
font - Font to measure.
size - Font size to measure.
[B] - If B is non-zero, the font is bold. (optional)
[C] - If C is non-zero, control codes are processed. (optional)
[D] - TODO


; Measure the height of text 'Hello World' using font 'Verdana 9'.
//echo -ag $height(Hello world, Verdana, 9)