Add a stub for the CAPS1 capability in GetDeviceCaps.
Define the CAPS1 bit flags in wingdi.h
Make various calls to GetDeviceCaps in DLLS use #defined values.

diff --git a/dlls/comctl32/imagelist.c b/dlls/comctl32/imagelist.c
index 4215a7e..dd39fa2 100644
--- a/dlls/comctl32/imagelist.c
+++ b/dlls/comctl32/imagelist.c
@@ -1952,7 +1952,7 @@
 	return TRUE;
     if (bitspixel<=4)
 	return FALSE;
-    return GetDeviceCaps(hdc,94) & 0x10;
+    return GetDeviceCaps(hdc,CAPS1) & C1_DIBENGINE;
 }
 #endif