Alternative of uxtheme.dll on MacOSX

There is a library uxtheme.dll on Windows that allows to render shapes of system elements.

Here is an illustration of what I mean: http://www.terrainformatica.com/htmlayout/images/themesupport.jpg

Is there anything close to that on MacOSX? I am looking for a function:

void drawSystemShape(CGContextRef gfx, rect, ctlType, part, state);

or the like.

Yes OS X has APIs to draw system controls in the HIToolbox framework which you can find inside the Carbon framework. The HIThemeDrawXXX functions are documented in the header HITheme.h.

Even though Carbon is deprecated, those functions are not and also available for 64-bit code.