VB SendMessage的参数

Public Declare Function SendMessage& Lib "user32" Alias "SendMessageA" (ByVal hwnd As Long, ByVal wMsg As Long, ByVal wParam As Long, lParam As Any)
 
它的第二项参数  wMsg有哪些？

追问：能告诉我各项的作用吗？

答案： Window   Messages   
  Const   WM_NULL   =   &H0   
  Const   WM_CREATE   =   &H1   
  Const   WM_DESTROY   =   &H2     
  Const   WM_MOVE   =   &H3  
  Const   WM_SIZE   =   &H5  
    
  Const   WM_ACTIVATE   =   &H6      
  '   
  '     WM_ACTIVATE   state   values   
    
  Const   WA_INACTIVE   =   0   
  Const   WA_ACTIVE   =   1   
  Const   WA_CLICKACTIVE   =   2   
    
  Const   WM_SETFOCUS   =   &H7   
  Const   WM_KILLFOCUS   =   &H8   
  Const   WM_ENABLE   =   &HA   
  Const   WM_SETREDRAW   =   &HB   
  Const   WM_SETTEXT   =   &HC   
  Const   WM_GETTEXT   =   &HD   
  Const   WM_GETTEXTLENGTH   =   &HE   
  Const   WM_PAINT   =   &HF   
  Const   WM_CLOSE   =   &H10   
  Const   WM_QUERYENDSESSION   =   &H11   
  Const   WM_QUIT   =   &H12   
  Const   WM_QUERYOPEN   =   &H13   
  Const   WM_ERASEBKGND   =   &H14   
  Const   WM_SYSCOLORCHANGE   =   &H15   
  Const   WM_ENDSESSION   =   &H16   
  Const   WM_SHOWWINDOW   =   &H18   
  Const   WM_WININICHANGE   =   &H1A   
  Const   WM_DEVMODECHANGE   =   &H1B   
  Const   WM_ACTIVATEAPP   =   &H1C   
  Const   WM_FONTCHANGE   =   &H1D   
  Const   WM_TIMECHANGE   =   &H1E   
  Const   WM_CANCELMODE   =   &H1F   
  Const   WM_SETCURSOR   =   &H20   
  Const   WM_MOUSEACTIVATE   =   &H21   
  Const   WM_CHILDACTIVATE   =   &H22   
  Const   WM_QUEUESYNC   =   &H23   
    
  Const   WM_GETMINMAXINFO   =   &H24   
    
    
    
  Const   WM_PAINTICON   =   &H26   
  Const   WM_ICONERASEBKGND   =   &H27   
  Const   WM_NEXTDLGCTL   =   &H28   
  Const   WM_SPOOLERSTATUS   =   &H2A   
  Const   WM_DRAWITEM   =   &H2B   
  Const   WM_MEASUREITEM   =   &H2C   
  Const   WM_DELETEITEM   =   &H2D   
  Const   WM_VKEYTOITEM   =   &H2E   
  Const   WM_CHARTOITEM   =   &H2F   
  Const   WM_SETFONT   =   &H30   
  Const   WM_GETFONT   =   &H31   
  Const   WM_SETHOTKEY   =   &H32   
  Const   WM_GETHOTKEY   =   &H33   
  Const   WM_QUERYDRAGICON   =   &H37   
  Const   WM_COMPAREITEM   =   &H39   
  Const   WM_COMPACTING   =   &H41   
  Const   WM_OTHERWINDOWCREATED   =   &H42                               '     no   longer   suported   
  Const   WM_OTHERWINDOWDESTROYED   =   &H43                           '     no   longer   suported   
  Const   WM_COMMNOTIFY   =   &H44                                               '     no   longer   suported   
    
  '   notifications   passed   in   low   word   of   lParam   on   WM_COMMNOTIFY   messages   
  Const   CN_RECEIVE   =   &H1   
  Const   CN_TRANSMIT   =   &H2   
  Const   CN_EVENT   =   &H4   
    
  Const   WM_WINDOWPOSCHANGING   =   &H46   
  Const   WM_WINDOWPOSCHANGED   =   &H47   
    
  Const   WM_POWER   =   &H48   
  '   
  '     wParam   for   WM_POWER   window   message   and   DRV_POWER   driver   notification   
    
  Const   PWR_OK   =   1   
  Const   PWR_FAIL   =   (-1)   
  Const   PWR_SUSPENDREQUEST   =   1   
  Const   PWR_SUSPENDRESUME   =   2   
  Const   PWR_CRITICALRESUME   =   3   
    
  Const   WM_COPYDATA   =   &H4A   
  Const   WM_CANCELJOURNAL   =   &H4B   
    
  Type   COPYDATASTRUCT   
                  dwData   As   Long   
                  cbData   As   Long   
                  lpData   As   Long   
  End   Type   
    
  Const   WM_NCCREATE   =   &H81   
  Const   WM_NCDESTROY   =   &H82   
  Const   WM_NCCALCSIZE   =   &H83   
  Const   WM_NCHITTEST   =   &H84   
  Const   WM_NCPAINT   =   &H85   
  Const   WM_NCACTIVATE   =   &H86   
  Const   WM_GETDLGCODE   =   &H87   
  Const   WM_NCMOUSEMOVE   =   &HA0   
  Const   WM_NCLBUTTONDOWN   =   &HA1   
  Const   WM_NCLBUTTONUP   =   &HA2   
  Const   WM_NCLBUTTONDBLCLK   =   &HA3   
  Const   WM_NCRBUTTONDOWN   =   &HA4   
  Const   WM_NCRBUTTONUP   =   &HA5   
  Const   WM_NCRBUTTONDBLCLK   =   &HA6   
  Const   WM_NCMBUTTONDOWN   =   &HA7   
  Const   WM_NCMBUTTONUP   =   &HA8   
  Const   WM_NCMBUTTONDBLCLK   =   &HA9   
    
  Const   WM_KEYFIRST   =   &H100   
  Const   WM_KEYDOWN   =   &H100   
  Const   WM_KEYUP   =   &H101   
  Const   WM_CHAR   =   &H102   
  Const   WM_DEADCHAR   =   &H103   
  Const   WM_SYSKEYDOWN   =   &H104

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