The C++ source code of Python UIAutomation for Windows
Build VS2008\UIAutomationClient.sln, VS2010\UIAutomationClient.sln and VS2015\UIAutomationClient.sln. You'll get UIAutomationClient_VC90_X64.dll UIAutomationClient_VC90_X86.dll UIAutomationClient_VC100_X64.dll UIAutomationClient_VC100_X86.dll UIAutomationClient_VC140_X64.dll UIAutomationClient_VC140_X86.dll in bin folder.