Difference between revisions of "HEIGHT"

From QB64 Wiki
Jump to navigation Jump to search
imported>Clippy
m
imported>Clippy
m
Line 1: Line 1:
The {{KW|_HEIGHT}} function returns the height of an image handle or current write page.
{{DISPLAYTITLE:_HEIGHT}}
The [[_HEIGHT]] function returns the height of an image handle or current write page.





Revision as of 13:58, 21 July 2013

The _HEIGHT function returns the height of an image handle or current write page.


Syntax

result& = _HEIGHT[(imageHandle&)]


Description

  • If imageHandle& is omitted, it's assumed to be the handle of the current write page.
  • To get the width of the current program window use zero for the handle value: depth& = _HEIGHT(0)
  • 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 will occur.
  • The maximum pixel coordinate of a program screen is one less than what the function returns.


Example: Displays the current program window area.

SCREEN 12 wide = _WIDTH deep = _HEIGHT PRINT "The program screen is"; wide; "X"; deep


See also



Navigation:
Keyword Reference - Alphabetical
Keyword Reference - By Usage
Main Wiki Page