#include#include#includeHWNDWindowHandle;HINSTANCEInstance;constwchar_tWindowClassName[]=L"TempProjcet";LRESULTCALLBACKWindowProc(HWND_windowHandle,UINT_msg,WPARAM_param,LPARAM_param1){switch(_msg){caseWM_PAINT:{PAINTSTRUCTps;HDChdc=BeginPaint(WindowHandle,&ps);FillRect(hdc,&ps.rcPaint,(HBRUSH)(