I have found one diagram that shows Core Graphics implemented above OpenGL, and another that puts it alongside OpenGL. I would think that Apple would be smart t开发者_如何学Pythono give each equal acc
H开发者_StackOverflow社区ow to create a smudge tool effect in ipad apps using core graphics?.Andy Finnell wrote a blog post about implementing smudge and stamp tools.
I try to Draw a pdf with CoreGraphics, everything work fine but in instrument there is a 100% leak on : CGContextDrawPDFPage(ctx, page2);
I\'m painting some black lines in an UIImageView (in touchesBegan and touchesMoved methods) and there is one UISlider for modifying the width of these开发者_高级运维 lines and some buttons for modifyi
I\'m trying to understand Quartz and getting the context you have to draw on.If I have a function where I create a context, but then I call another function开发者_开发知识库 to some other drawing to t
I\'m trying to solve a specific problem (but this could benefit others) which from googling around doesn\'t seem to have a definitive solution. I think there are probably several partial solutions out
I want to add a drop shadow using CALayer to a UI(Image)View. The following code works generally fine previewImage.layer.shadowColor = [[UIColor blackColor] CGColor];
I\'m using NSSavePanel to let user select image to save to in my app. Everything worked fine until I enabled app sandboxing and entitlements. The problem occurs with selection of an already existing f
I\'ve made a custom zero-image, Core Graphics drawn UIButton based on Ray Wenderlich\'s Tutorial (the only modifications are to CoolButton\'s drawRect: method, altered drawing code), and it works grea
What is the equivalent of CGImageCreateWithImageInRect iOS method in MonoTouch? I\'m trying to convert this Objective-C line in C#:
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