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Re: Drawing the contents of a CGContext to another CGContext


On 20 jun 2007, at 16:00, Felipe Monteiro de Carvalho wrote:

I created a CGContext based on a raw surface I allocated by self:

 FContext := CGBitmapContextCreate(FBits,
  NewWidth, NewHeight, 8, Stride, FColorSpace,
kCGImageAlphaNoneSkipFirst or kCGBitmapByteOrder32Little);

Then I would use this FContext to perform some drawing operations.
Now, I would like to draw part of this area into another CGContext,
with stretching and also without. How can this be done?

CGContextDrawImage(otherContext,boundsRect,CGBitmapContextCreateImage (FContext));

Note that CGBitmapContextCreateImage is only available in 10.4 and later.


Jonas
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References: 
 >Drawing the contents of a CGContext to another CGContext (From: "Felipe Monteiro de Carvalho" <email@hidden>)



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