[WIN32K]
 - Use debug channel for debug outputs

git-svn-id: svn://svn.reactos.org/reactos/trunk@63737 97493ccd-5924-5043-b1f5-66cb403b36ce
[WIN32K]
 - Do not offset the window visible region when creating the WNDOBJ, it's already fine

git-svn-id: svn://svn.reactos.org/reactos/trunk@63738 97493ccd-5924-5043-b1f5-66cb403b36ce
[WIN32K]
 - Improve the WNDOBJ/CLIPOBJ hack by using the same internal structure for both object.
This way a driver can enumerate WNDOBJ::coClient safely.
Also take this as an opportunity to get rid of DC::ros_dc.

git-svn-id: svn://svn.reactos.org/reactos/trunk@63739 97493ccd-5924-5043-b1f5-66cb403b36ce
[WIN32K]
 - Some more DPRINT -> DEBUGCHANNEL

git-svn-id: svn://svn.reactos.org/reactos/trunk@63740 97493ccd-5924-5043-b1f5-66cb403b36ce
[WIN32K]
 - Explicitly initialize PropListItems

git-svn-id: svn://svn.reactos.org/reactos/trunk@63741 97493ccd-5924-5043-b1f5-66cb403b36ce
[WIN32K]
 - Avoid useless casts
 - Add a few debug prints
 - Add sanity check

git-svn-id: svn://svn.reactos.org/reactos/trunk@63742 97493ccd-5924-5043-b1f5-66cb403b36ce
[WIN32K]
 - Hack around a bug (tm)

git-svn-id: svn://svn.reactos.org/reactos/trunk@63743 97493ccd-5924-5043-b1f5-66cb403b36ce