I\'ve got a UIView overriding the drawRect: method. Now, when I\'m doing view.transform = CGAffineTransformMakeScale(recognizer.scale,1.0);
I\'ve been searching struggling with this for a while now and need some help. I just want to draw 25 lines from the centre of my display (160,200) at 14.4 degrees separation. I have been using this li
I have the following code: - (void)drawRect:(CGRect)rect { CGContextRef c = UIGraphicsGetCurrentContext();
I have a CGContextRef and I did my drawing stuff with the bitmap context. Now, I would like to have a function c开发者_C百科all to get a UIImage for the CGContextRef. How do I do that?Something like t
In 开发者_如何学运维xcode4/Objective C, on Leopard: I have a CGDisplayModeRef which is as I understand it an Immutable Dictionary Reference.
I have a UITableView where I am trying to get the best possible scrolling performance. The cell does not contain any subviews, all is done in the drawRect method.
I am scaling and cropping a UIImage and I want to be able to do it in a block that is thread safe. I could not find in the docs whether UIImageJPEGRepresentation is thread safe.
I am looking at way of finding the color space of a CGContext? CGBitmapContextGetColorSpace() will 开发者_JAVA技巧not work as I am working with general context and not bitmap context.
can a graphic card be sort-of \"emulated\" so the system can show display with开发者_如何学Goout a graphics card when it starts upOf course. Such a thing is called a \"virtual framebuffer\".
How can I get sizes of each glyph of the string in pixels? I use CGFontGetGlyphBBoxes to get a bounding box of each glyph in string and get following values:
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