I\'m creating an iPad app for 3.2 and later. My app has an overlay view which has a semi-transparency that makes everything below it darker. In the middle of this view I am chopping a hole in this sem
I have a custom table view cell that is intended to draw a circle like the iPhone’s Mail.app does: Instead, it draws like this:
Hi guys I am getting 0 for RGB values in this code. Any idea why? The inImage was created with this CGContext.
I try to make a plugin for browsers in Mac OSX. I got a CGContext from browser process. So I ca开发者_JS百科n draw with it.
Im trying to render PDF pages to imag开发者_如何学Pythones on a background thread, is there a thread safe way of generating an image from a pdfContext/context that doesn\'t not use:
Folks, While coding up a few dials and sliders (e.g. like a big volume button one can rotate around) - I found that the standard CGContextAddArc() used like:
I have a large line to draw that the colour changes along the line. Now and again I get EXC_BAD_ACCESS on the 4th line of the code there.
I would like to use a CATiledLayer in iPhone OS 3.1.3 and to do so all drawing in -(void)drawLayer:(CALayer *)layer inContext:(CGContext)context has to be done with coregraphics only.
I\'d like to take a UITextView and allow the user to enter text into it and then trigger a copy of the contents onto a quartz bitmap context.Does anyone know how I can perform this copy action?Should
I\'m attempting to create a grid-style table using the UITableView by overwriting vertical lines on top of the standard horizontal lines provided by default in a UITableView. I am adapting my code to
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