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Concept Framework 2.2 documentation
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RImage
.Rotate90
public function
Rotate90
Prototype:
public function Rotate90(angle)
Parameters
angle
the type of the rotation
Description:
This function rotates an image by a multiple of 90 degrees.
The angle parameter must have one of this values:
ROTATE_NONE
ROTATE_COUNTERCLOCKWISE
ROTATE_UPSIDEDOWN
ROTATE_CLOCKWISE
Return value:
This function returns null.