NEWIMAGE

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Revision as of 16:36, 18 June 2010 by imported>Clippy
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The _NEWIMAGE Function prepares a window image surface and returns the handle value.


Syntax

handle& = _NEWIMAGE& (width AS LONG, height AS LONG[, BPPmode AS LONG])


Description

  • Width& >= 0, Height& >= 1 measured in pixels.
  • BPPmode& is either a QB type screenmode(0 to 2 or 7 to 13) or 256 colors or 32 bit compatible.
  • If BPPmode is omitted, an image will be created in the same BPP mode as the current destination image.
  • Valid LONG handle returns are less than -1. Invalid handles equal -1.
  • You can create any sized window(limited by OS) using this function.
  • It is IMPORTANT to free discarded images with _FREEIMAGE to prevent memory overflow errors!


Examples

1) Shrinking a SCREEN 0 text window's size:

SCREEN _NEWIMAGE(28, 25, 0)


2) Creating a 800 by 600 window version of SCREEN 12 with 256 colors:

handle& = _NEWIMAGE(800, 600, 256) SCREEN handle&



See also




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