Mapping for ICM_SETSTATE (ptr in lParam1 to private data).

diff --git a/dlls/msvideo/msvideo_main.c b/dlls/msvideo/msvideo_main.c
index 9b3a528..b24454f 100644
--- a/dlls/msvideo/msvideo_main.c
+++ b/dlls/msvideo/msvideo_main.c
@@ -553,6 +553,7 @@
 	case DRV_OPEN:
 	case ICM_GETDEFAULTQUALITY:
 	case ICM_GETQUALITY:
+	case ICM_SETSTATE:
 		*lParam1 = (DWORD)MapSL(*lParam1);
 		break;
 	case ICM_GETINFO: