- added a NULL check for GL resource context in init code.

src/win32/win32gliface.cpp

@@ -799,6 +799,8 @@ bool Win32GLVideo::InitHardware (HWND Window, int multisample)
 			return false;
 		}
 
+		if (m_hRC != NULL)
+		{
 			wglMakeCurrent(m_hDC, m_hRC);
 
 			// we can only use core profile contexts if GL_ARB_buffer_storage is supported or GL version is >= 4.4
@@ -812,6 +814,7 @@ bool Win32GLVideo::InitHardware (HWND Window, int multisample)
 				return true;
 			}
 		}
+	}
 	return false;
 }