Handle wParam in WM_PAINT properly: if non-null, it is the hdc we are
[wine] / dlls / ddraw / d3ddevice /
drwxr-xr-x   ..
-rw-r--r-- 94284 main.c
-rw-r--r-- 32398 main.h
-rw-r--r-- 170026 mesa.c