Fix for bug #266 Icon loading for hi-dpi environments

git-svn-id: http://svn.code.sf.net/p/wtl/code/trunk/wtl@594 4beafcb9-bf40-0410-b8f5-b741cf90ec0e
Fix for warning C4555: expression has no effect when using BEGIN_MSG_MAP_EX and BEGIN_DDX_MAP

git-svn-id: http://svn.code.sf.net/p/wtl/code/trunk/wtl@595 4beafcb9-bf40-0410-b8f5-b741cf90ec0e