Source code of Windows XP (NT5)
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/*++
*
* 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)
{
}