Returns the alpha information associated with the context, which indicates how a bitmap context handles the alpha component.
Original signature is 'CGImageAlphaInfo CGBitmapContextGetAlphaInfo ( CGContextRef c );'
Available in Mac OS X v10.2 and later.

C# | Visual Basic | Visual C++ |
public static CGImageAlphaInfo GetAlphaInfo( IntPtr c )
Public Shared Function GetAlphaInfo ( _ c As IntPtr _ ) As CGImageAlphaInfo
public: static CGImageAlphaInfo GetAlphaInfo( IntPtr c )

- c (IntPtr)
- MISSING

A bitmap information constant. If the specified context is not a bitmap context, kCGImageAlphaNone is returned. See CGImageAlphaInfo (renamed to CGBitmapInfo in Mac OS X v10.4) for more information about values.

- Available in Monobjc Bridge: 10.6 (For Mac OS X 10.6 and later), 10.5 (For Mac OS X 10.5 and later)