Public Const DT_WORDBREAK As Long = &H10&
Public Const DT_CALCRECT As Long = &H400&
Public Const DT_EDITCONTROL As Long = &H2000&
Public Const DT_END_ELLIPSIS As Long = &H8000&
Public Const DT_MODIFYSTRING As Long = &H10000
Public Const DT_PATH_ELLIPSIS As Long = &H4000&
Public Const DT_RTLREADING As Long = &H20000
Public Const DT_WORD_ELLIPSIS As Long = &H40000
刚学vb，这些申明是干什么用的，能否解释一下，

主要用于哪 些方面，
&H10& 这个是什么，看不懂哦。。。
Public Const DT_WORDBREAK As Long = &H10& 这句的意思是不是将变量 WORDBREAK 的值等于&H10&???
&H10& 的值又是多少。。。