This project wraps Windows Gdiplus::Bitmap for my python module Python-UIAutomation-for-Window.
Build VS2010\UIAutomationClient.sln and VS2015\UIAutomationClient.sln.
You'll get
UIAutomationClient_VC100_X64.dll
UIAutomationClient_VC100_X86.dll
UIAutomationClient_VC140_X64.dll
UIAutomationClient_VC140_X86.dll
in bin folder.
You can use uiautomation without these dlls, but the functionalities related to Bitmap will not be available.