QPx_ResizePicture

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

Resizes a picture variable.

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: You can decompress a compressed picture by using QPx_ResizePicture($pict;1;1)

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

qpx_ResizeHighQuality 0x0004 High quality resizing

Example

  `Resize a picture (grow 50%)
 
C_PICTURE($pict)
C_REAL($horzScale;$vertScale)
C_LONGINT($error)
 
$pict:= gp_OriginalPicture
$horzScale:=1.5
$vertScale:=1.5
 
$error:=QPx_ResizePicture ($pict;$horzScale;$vertScale)
 
If ($error=qpx_noErr)
  gp_ResizedPicture:=$pict
End if

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