// Message.lib - Cmm code wrapper for the SendMessage() and PostMessage()
//               Windows functions.  With these routines, any message can
//               be sent or posted to any window.
// Supported functions are:
//    PostMessage()
//    SendMessage()
// SYNTAX:
//  bool PostMessage(Window,Message,wParam,lParam)
//  bool PostMessage(Window,Message,wParam,lParamLo,lParamHi)
//   int SendMessage(Window,Message,wParam,lParam)
//   int SendMessage(Window,Message,wParam,lParamLo,lParamHi)
// WHERE:
//    Window - Window handle to send message to or HWND_BROADCAST for all
//    Message - the message to send
//    wParam - the word-size parameter to send
//    lParam - the double-word (32-bit) size paramter to send
//    lParamLo - Low-order word of lParam
//    lParamHi - Hi-order word of lParam
// RETURN:
//    SendMessage() returns the value returned by the window message handler
//    PostMessage(0 returns boolean for whether the message was posted

#define  HWND_BROADCAST    0xFFFF   // send or post to all windows

// Here are a bunch of messages that Windows might receive

#define WM_NULL             0x0000
#define WM_CREATE           0x0001
#define WM_DESTROY          0x0002
#define WM_MOVE             0x0003
#define WM_SIZE             0x0005
#define WM_ACTIVATE         0x0006
#define WM_SETFOCUS         0x0007
#define WM_KILLFOCUS        0x0008
#define WM_ENABLE           0x000A
#define WM_SETREDRAW        0x000B
#define WM_SETTEXT          0x000C
#define WM_GETTEXT          0x000D
#define WM_GETTEXTLENGTH    0x000E
#define WM_PAINT            0x000F
#define WM_CLOSE            0x0010
#define WM_QUERYENDSESSION  0x0011
#define WM_QUIT             0x0012
#define WM_QUERYOPEN        0x0013
#define WM_ERASEBKGND       0x0014
#define WM_SYSCOLORCHANGE   0x0015
#define WM_ENDSESSION       0x0016
#define WM_SHOWWINDOW       0x0018
#define WM_CTLCOLOR         0x0019
#define WM_WININICHANGE     0x001A
#define WM_DEVMODECHANGE    0x001B
#define WM_ACTIVATEAPP      0x001C
#define WM_FONTCHANGE       0x001D
#define WM_TIMECHANGE       0x001E
#define WM_CANCELMODE       0x001F
#define WM_SETCURSOR        0x0020
#define WM_MOUSEACTIVATE    0x0021
#define WM_CHILDACTIVATE    0x0022
#define WM_QUEUESYNC        0x0023
#define WM_GETMINMAXINFO    0x0024
#define WM_PAINTICON        0x0026
#define WM_ICONERASEBKGND   0x0027
#define WM_NEXTDLGCTL       0x0028
#define WM_SPOOLERSTATUS    0x002A
#define WM_DRAWITEM         0x002B
#define WM_MEASUREITEM      0x002C
#define WM_DELETEITEM       0x002D
#define WM_VKEYTOITEM       0x002E
#define WM_CHARTOITEM       0x002F
#define WM_SETFONT          0x0030
#define WM_GETFONT          0x0031
#define WM_QUERYDRAGICON    0x0037
#define WM_COMPAREITEM      0x0039
#define WM_COMPACTING       0x0041
#define WM_NCCREATE         0x0081
#define WM_NCDESTROY        0x0082
#define WM_NCCALCSIZE       0x0083
#define WM_NCHITTEST        0x0084
#define WM_NCPAINT          0x0085
#define WM_NCACTIVATE       0x0086
#define WM_GETDLGCODE       0x0087
#define WM_NCMOUSEMOVE      0x00A0
#define WM_NCLBUTTONDOWN    0x00A1
#define WM_NCLBUTTONUP      0x00A2
#define WM_NCLBUTTONDBLCLK  0x00A3
#define WM_NCRBUTTONDOWN    0x00A4
#define WM_NCRBUTTONUP      0x00A5
#define WM_NCRBUTTONDBLCLK  0x00A6
#define WM_NCMBUTTONDOWN    0x00A7
#define WM_NCMBUTTONUP      0x00A8
#define WM_NCMBUTTONDBLCLK  0x00A9
#define WM_KEYFIRST         0x0100
#define WM_KEYDOWN          0x0100
#define WM_KEYUP            0x0101
#define WM_CHAR             0x0102
#define WM_DEADCHAR         0x0103
#define WM_SYSKEYDOWN       0x0104
#define WM_SYSKEYUP         0x0105
#define WM_SYSCHAR          0x0106
#define WM_SYSDEADCHAR      0x0107
#define WM_KEYLAST          0x0108
#define WM_INITDIALOG       0x0110
#define WM_COMMAND          0x0111
#define WM_SYSCOMMAND       0x0112
   #define SC_SIZE         0xF000
   #define SC_MOVE         0xF010
   #define SC_MINIMIZE     0xF020
   #define SC_MAXIMIZE     0xF030
   #define SC_NEXTWINDOW   0xF040
   #define SC_PREVWINDOW   0xF050
   #define SC_CLOSE        0xF060
   #define SC_VSCROLL      0xF070
   #define SC_HSCROLL      0xF080
   #define SC_MOUSEMENU    0xF090
   #define SC_KEYMENU      0xF100
   #define SC_ARRANGE      0xF110
   #define SC_RESTORE      0xF120
   #define SC_TASKLIST     0xF130
   #define SC_ICON         SC_MINIMIZE
   #define SC_ZOOM         SC_MAXIMIZE
#define WM_TIMER            0x0113
#define WM_HSCROLL          0x0114
#define WM_VSCROLL          0x0115
#define WM_INITMENU         0x0116
#define WM_INITMENUPOPUP    0x0117
#define WM_MENUSELECT       0x011F
#define WM_MENUCHAR         0x0120
#define WM_ENTERIDLE        0x0121
#define WM_MOUSEFIRST       0x0200
#define WM_MOUSEMOVE        0x0200
#define WM_LBUTTONDOWN      0x0201
#define WM_LBUTTONUP        0x0202
#define WM_LBUTTONDBLCLK    0x0203
#define WM_RBUTTONDOWN      0x0204
#define WM_RBUTTONUP        0x0205
#define WM_RBUTTONDBLCLK    0x0206
#define WM_MBUTTONDOWN      0x0207
#define WM_MBUTTONUP        0x0208
#define WM_MBUTTONDBLCLK    0x0209
#define WM_MOUSELAST        0x0209
#define WM_PARENTNOTIFY     0x0210
#define WM_MDICREATE        0x0220
#define WM_MDIDESTROY       0x0221
#define WM_MDIACTIVATE      0x0222
#define WM_MDIRESTORE       0x0223
#define WM_MDINEXT          0x0224
#define WM_MDIMAXIMIZE      0x0225
#define WM_MDITILE          0x0226
#define WM_MDICASCADE       0x0227
#define WM_MDIICONARRANGE   0x0228
#define WM_MDIGETACTIVE     0x0229
#define WM_MDISETMENU       0x0230
#define WM_CUT              0x0300
#define WM_COPY             0x0301
#define WM_PASTE            0x0302
#define WM_CLEAR            0x0303
#define WM_UNDO             0x0304
#define WM_RENDERFORMAT     0x0305
#define WM_RENDERALLFORMATS 0x0306
#define WM_DESTROYCLIPBOARD 0x0307
#define WM_DRAWCLIPBOARD    0x0308
#define WM_PAINTCLIPBOARD   0x0309
#define WM_VSCROLLCLIPBOARD 0x030A
#define WM_SIZECLIPBOARD    0x030B
#define WM_ASKCBFORMATNAME  0x030C
#define WM_CHANGECBCHAIN    0x030D
#define WM_HSCROLLCLIPBOARD 0x030E
#define WM_QUERYNEWPALETTE  0x030F
#define WM_PALETTEISCHANGING 0x0310
#define WM_PALETTECHANGED   0x0311


SendMessage(Window,Message,wParam,lParamLo,lParamHi)
{
   if ( va_arg() == 4 )
      return(SendMessage(Window,Message,wParam,lParamLo & 0xFFFF,(lParamLo >> 16) & 0xFFFF));
   return( DynamicLink("USER","SENDMESSAGE",UWORD32,PASCAL,
                       Window,Message,wParam,lParamHi,lParamLo) );
}

PostMessage(Window,Message,wParam,lParamLo,lParamHi)
{
   if ( va_arg() == 4 )
      return(PostMessage(Window,Message,wParam,lParamLo & 0xFFFF,(lParamLo >> 16) & 0xFFFF));
   return( DynamicLink("USER","POSTMESSAGE",SWORD16,PASCAL,
                       Window,Message,wParam,lParamHi,lParamLo) );
}