windows-server-2003/base/mvdm/wow32/wmsgbm.c

/*++
 *
 *  WOW v1.0
 *
 *  Copyright (c) 1991, Microsoft Corporation
 *
 *  WMSGBM.C
 *  WOW32 16-bit message thunks
 *
 *  History:
 *  Created 11-Mar-1991 by Jeff Parsons (jeffpar)
--*/


#include "precomp.h"
#pragma hdrstop

MODNAME(wmsgbm.c);


#ifdef DEBUG

MSGINFO amiBM[] = {
   {OLDBM_GETCHECK, "BM_GETCHECK"},             // 0x0400
   {OLDBM_SETCHECK, "BM_SETCHECK"},             // 0x0401
   {OLDBM_GETSTATE, "BM_GETSTATE"},             // 0x0402
   {OLDBM_SETSTATE, "BM_SETSTATE"},             // 0x0403
   {OLDBM_SETSTYLE, "BM_SETSTYLE"},             // 0x0404
};

PSZ GetBMMsgName(WORD wMsg)
{
    INT i;
    register PMSGINFO pmi;

    for (pmi=amiBM,i=NUMEL(amiBM); i>0; i--,pmi++)
        if ((WORD)pmi->uMsg == wMsg)
        return pmi->pszMsgName;
    return GetWMMsgName(wMsg);
}

#endif


BOOL FASTCALL ThunkBMMsg16(LPMSGPARAMEX lpmpex)
{
    WORD wMsg = lpmpex->Parm16.WndProc.wMsg;
    LOGDEBUG(7,("    Thunking 16-bit button message %s(%04x)\n", (LPSZ)GetBMMsgName(wMsg), wMsg));

    //
    // special case BM_CLICK
    //

    if (wMsg == WIN31_BM_CLICK) {
        lpmpex->uMsg = BM_CLICK;
    }
    else {
        wMsg -= WM_USER;
    
        //
        // For app defined (control) messages that are out of range
        // return TRUE.
        //
        // ChandanC Sept-15-1992
        //
    
        if (wMsg < (BM_SETSTYLE - BM_GETCHECK + 1)) {
            lpmpex->uMsg = wMsg + BM_GETCHECK;

            // The following messages should not require thunking, because
            // they contain no pointers, handles, or rearranged message parameters,
            // so consequently they are not documented in great detail here:
            //
            // BM_GETCHECK
            // BM_GETSTATE
            // BM_SETCHECK
            // BM_SETSTATE
            // BM_SETSTYLE
            //
            // And these I haven't seen documentation for yet (new for Win32???)
            //
            // BM_GETIMAGE
            // BM_SETIMAGE

            // switch(lpmpex->uMsg) {
            //          NO BM_ message needs thunking
            // }

        }
    }
    return TRUE;
}


VOID FASTCALL UnThunkBMMsg16(LPMSGPARAMEX lpmpex)
{
}