The method checks, whether the bitmap contains any alpha
information. The same information is also available at the
XColorSpace associated with this bitmap, though
much easier to access here (the color space then has a
component flagged
ColorComponentTag::ALPHA).
Returns
true, if the bitmap has alpha data, or false if
not.
Requested size of the new bitmap. Both of the two size
components must be greater than zero.
Parameter beFast
When set to true, this parameter advises getScaledBitmap to
use the fastest available algorithm to scale the bitmap, which
might cause visible artifacts.
Returns
the new scaled bitmap.
Throws
com::sun::star::lang::IllegalArgumentException
if the size components are outside the specified range.
Throws
VolatileContentDestroyedException
if the contents of a volatile bitmap have been destroyed, and
thus cannot be read to generate the scaled bitmap.
