QPx_InvertPicture
| QPx_InvertPicture(pictVar):error | |||
|---|---|---|---|
 |
pictVar | Picture | Picture variable |
 |
error | Longint | Error result |
Invert the colors of a picture
The source picture is passed in the pictVar parameter. The source picture may be compressed or uncompressed. The inverted picture is also returned in the pictVar parameter and is always uncompressed. If an error occurs, pictVar is set to an empty picture.
Example
// Invert a picture C_PICTURE($picture) C_LONGINT($error) $picture:=[Images]Picture $error:=QPx_InvertPicture ($picture) If ($error=qpx_noErr) [Images]Picture:=$picture End if