QPx_ResizePicture

QPx_ResizePicture(pictVar; pictVar; pictVar; pictVar):error
	pictVar	Picture	Picture variable
	hScale	Real	Horizontal scale
	vScale	Real	Vertical scale
	resizeOptions	Longint	Options
	error	Longint	Error result

The source picture is passed in the pictVar parameter. The source picture may be compressed or uncompressed. The resized picture is also returned in the pictVar parameter and it is always uncompressed. If an error occurs, pictVar is set to an empty picture.

The horizontal and vertical resize factors are specified by the horzScale and vertScale parameters respectively.

TIP Decompress a compressed picture by using QPx_ResizePicture($pict;1;1)

The resizeOptions parameter is optional. It can be used to specify options for the resizing operation.

Example

   // Resize a picture (grow 50%)

C_PICTURE($pict)
C_REAL($horzScale;$vertScale)
C_LONGINT($error)

$pict:=gOriginalPicture
$horzScale:=1.5
$vertScale:=1.5

$error:=QPx_ResizePicture ($pict;$horzScale;$vertScale)

If ($error=qpx_noErr)
   
   gResizedPicture:=$pict
   
End if