New debug scheme with explicit debug channels declaration.

diff --git a/windows/dialog.c b/windows/dialog.c
index 411147f..46b6b06 100644
--- a/windows/dialog.c
+++ b/windows/dialog.c
@@ -23,6 +23,8 @@
 #include "sysmetrics.h"
 #include "debug.h"
 
+DEFAULT_DEBUG_CHANNEL(dialog)
+
 
   /* Dialog control information */
 typedef struct