The CGContextRef opaque type represents a Quartz 2D drawing destination.
I need to draw lines; some are dashed and others are continuous. I cannot know which are dashed and which …
objective-c cocoa-touch ios line cgcontextI would like to use a CATiledLayer in iPhone OS 3.1.3 and to do so all drawing in -(void)drawLayer:(…
iphone core-graphics cgcontext catiledlayerI just updated Xcode from version 4.6.2 to 5.0, and after doing a method in my project (created in Xcode 4.6.2) is suddenly …
ios xcode cgcontext xcode5 cgbitmapcontextcreateI have a custom table view cell that is intended to draw a circle like the iPhone’s Mail.app …
iphone objective-c core-graphics cgcontextI'm trying to build an eraser tool using Core Graphics, and I'm finding it incredibly difficult to make a performant …
ios objective-c core-graphics cgcontextI have a UIImageView that shows a picture the user has just taken with the camera. On that image i …
ios uiview uiimageview cgcontext cashapelayerI am trying to create a 8-bit grayscale context as follows : CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceGray(); CGContextRef context = CGBitmapContextCreate( data, m_width, …
ios cgcontextguys! I need to draw some image to CGContext.This is the relevant code: CGContextSaveGState(UIGraphicsGetCurrentContext()); CGContextRef ctx = UIGraphicsGetCurrentContext(); CGRect …
ios rotation core-graphics cgcontext rectI have the following code: CGContextRef context = UIGraphicsGetCurrentContext(); CGContextSaveGState(context); CALayer *sublayer = [CALayer layer]; sublayer.backgroundColor = [UIColor orangeColor].CGColor; sublayer.…
calayer cgcontextI'm trying to build an app that use layers, my app structure is UIView --> UIScrollView --> UIView …
ios5 calayer cgcontext quartz-core