How can I paint with with 4 fingers simultaneously. I need UI to interact and respond to a开发者_开发知识库ll touches.
I would like to rewrite the Apple source code, GLPaint application, but not using OpenGL like the example, I would like to use Core Graphics library. But I stuck in displaying the texture like GLPaint
I\'m trying to implement iFog like view, meaning a view when you can smear-like your finger on the screen and it will reveal what\'s beneath.
From past few days I am trying to find out the location of CGContextRef on screen and window at Graphics Layer of OS X architecture (mostly in quartz). I think in order to create a window one must pas
I have a physical map (real world), for example, a little town map. A \"path\" line is painted over the map, think about it like \"you are here. here\'s how to reach the train station\" :)
I have a CVImageBuffer that comes back with recorded height of 640px and width of 852px. The bytes per row are 3456. You\'ll notice that 3456/852px != 4 (it\'s something like 4.05). After some inspect
This question already has answers here: Closed 11 years ago. 开发者_开发技巧 Possible Duplicate: iOS Draw Rectagle with curved ends
I am developing an application in which I have to show the selected time in my clock image. Description:-
I\'m using this code to create a rounded cornered image: CGContextBeginPath(context); CGRect rect = CGRectMake(0, 0, ima开发者_JAVA百科geObj.size.width, imageObj.size.height);
Apples 64 bit documentation says, The Window Manager is 开发者_Go百科not available to 64-bit applications. For information about using windows in a Cocoa user interface, see Window Programming Guide.
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