M using UIImagePNGRepresentation to create a png image from a pdf file. I want to reduce the size of the image c开发者_Go百科reated.
I need to show values in bar graph. I am drawing the bars using CALayer. And there are only three bars in my case. And the bar height changes for different values. I am drawing each bar as a rectangle
If you aren\'t familiar with Cinch, its an application on Mac App Store that allows you to resize ANY window to half/full screen size if you drag the window to the edge of the screen. Exactly like the
How can I draw such a conical gradient in iOS using Core Graphics / Quartz 2D API?开发者_如何学Go
The following is a snippet of code from the Omni frameworks: CGMutablePathRef开发者_运维百科 path = CGPathCreateMutable();
In the documentation, it says that list of windows returned by this method: CFArrayRef windowList = CGWindowListCopyWindowInfo(kCGWindowListOptionOnScreenOnly, kCGNullWindowID);
Given a rectangular area, I want to render some text using a specific font and have the rendered text fill out the rectangle. As in the image below:
I have two mp4 movies. One that has the actual video and one with the alpha values. My intention is that the first movie will get a transparent look, by merging it with the second one, where the secon
I have asked (and answered) a very similar question before.That question was able to be solved because I knew the dirtyRect, and thus, knew where I should draw the image. Now, I am seeing the same beh
I\'m trying to emulate the color tint effect from the UITabBarItem. When I draw a linear gradient at an angle, I get visible aliasing in the middle part of the gradient where the two colors meet at
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