pb定义用户事件的说明

JohnPhan

免费乐捐，感谢支持

Defining   custom   user   events   for   standard   controls   is   not   recommended.   To   define   custom   user   events   for   standard   controls,   you   must   have   some   Windows   SDK   experience   and   understand   the   following:  
   
  All   standard   controls   respond   to   standard   events   in   the   range   0   to   1023.   Most   controls   also   define   their   own   range   of   custom   events   beyond   1023   (corresponding   to   wm_user   messages).    
   
  Some   controls   have   custom   events.   You   need   to   know   which   controls   do,   because   these   custom   events   overlap   with   the   PowerBuilder   custom   events   (pbm_customxx).    
   
  The   pbm_custom01   event   ID   maps   to   wm_user+0,   pbm_custom02   maps   to   wm_user+1,   and   so   on,   through   pbm_custom75,   which   maps   to   wm_user+74.  
   
  You   need   to   make   sure   that   you   use   a   pbm_custom   event   ID   that   does   not   conflict   with   a   custom   event   defined   by   Windows   for   the   standard   control.   Otherwise,   you   might   encounter   unexpected   behavior   in   your   application.

JohnPhan

如果使用在pb中使用api或其它的dll，可能会涉及这些问题

ribut922

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