277 lines
9.2 KiB
C
277 lines
9.2 KiB
C
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/*++
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*
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* WOW v1.0
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*
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* Copyright (c) 1991, Microsoft Corporation
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*
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* WMSGEM.C
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* WOW32 16-bit message thunks
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*
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* History:
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* Created 11-Mar-1991 by Jeff Parsons (jeffpar)
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--*/
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#include "precomp.h"
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#pragma hdrstop
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MODNAME(wmsgem.c);
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VPVOID WordBreakProc16 = 0;
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extern WBP W32WordBreakProc;
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#ifdef DEBUG
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MSGINFO amiEM[] = {
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{OLDEM_GETSEL, "EM_GETSEL"}, // 0x0400
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{OLDEM_SETSEL, "EM_SETSEL"}, // 0x0401
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{OLDEM_GETRECT, "EM_GETRECT"}, // 0x0402
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{OLDEM_SETRECT, "EM_SETRECT"}, // 0x0403
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{OLDEM_SETRECTNP, "EM_SETRECTNP"}, // 0x0404
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{OLDEM_SCROLL, "EM_SCROLL"}, // 0x0405
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{OLDEM_LINESCROLL, "EM_LINESCROLL"}, // 0x0406
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{OLDEM_GETMODIFY, "EM_GETMODIFY"}, // 0x0408
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{OLDEM_SETMODIFY, "EM_SETMODIFY"}, // 0x0409
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{OLDEM_GETLINECOUNT, "EM_GETLINECOUNT"}, // 0x040A
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{OLDEM_LINEINDEX, "EM_LINEINDEX"}, // 0x040B
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{OLDEM_SETHANDLE, "EM_SETHANDLE"}, // 0x040C
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{OLDEM_GETHANDLE, "EM_GETHANDLE"}, // 0x040D
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{OLDEM_GETTHUMB, "EM_GETTHUMB"}, // 0x040E
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{OLDEM_LINELENGTH, "EM_LINELENGTH"}, // 0x0411
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{OLDEM_REPLACESEL, "EM_REPLACESEL"}, // 0x0412
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{OLDEM_SETFONT, "EM_SETFONT"}, // 0x0413
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{OLDEM_GETLINE, "EM_GETLINE"}, // 0x0414
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{OLDEM_LIMITTEXT, "EM_LIMITTEXT"}, // 0x0415
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{OLDEM_CANUNDO, "EM_CANUNDO"}, // 0x0416
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{OLDEM_UNDO, "EM_UNDO"}, // 0x0417
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{OLDEM_FMTLINES, "EM_FMTLINES"}, // 0x0418
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{OLDEM_LINEFROMCHAR, "EM_LINEFROMCHAR"}, // 0x0419
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{OLDEM_SETWORDBREAK, "EM_SETWORDBREAK"}, // 0x041A
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{OLDEM_SETTABSTOPS, "EM_SETTABSTOPS"}, // 0x041B
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{OLDEM_SETPASSWORDCHAR, "EM_SETPASSWORDCHAR"}, // 0x041C
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{OLDEM_EMPTYUNDOBUFFER, "EM_EMPTYUNDOBUFFER"}, // 0x041D
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{OLDEM_GETFIRSTVISIBLELINE, "EM_GETFIRSTVISIBLELINE"}, // 0x041E
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{OLDEM_SETREADONLY, "EM_SETREADONLY"}, // 0x041F
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{OLDEM_SETWORDBREAKPROC, "EM_SETWORDBREAKPROC"}, // 0x0420
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{OLDEM_GETWORDBREAKPROC, "EM_GETWORDBREAKPROC"}, // 0x0421
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{OLDEM_GETPASSWORDCHAR, "EM_GETPASSWORDCHAR"} // 0x0422
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};
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PSZ GetEMMsgName(WORD wMsg)
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{
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INT i;
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register PMSGINFO pmi;
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for (pmi=amiEM,i=NUMEL(amiEM); i>0; i--,pmi++) {
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if ((WORD)pmi->uMsg == wMsg)
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return pmi->pszMsgName;
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}
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return GetWMMsgName(wMsg);
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}
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#endif
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BOOL FASTCALL ThunkEMMsg16(LPMSGPARAMEX lpmpex)
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{
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WORD wMsg = lpmpex->Parm16.WndProc.wMsg;
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LOGDEBUG(7,(" Thunking 16-bit edit control message %s(%04x)\n", (LPSZ)GetEMMsgName(wMsg), wMsg));
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wMsg -= WM_USER;
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//
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// For app defined (control) messages that are out of range
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// return TRUE.
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//
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// ChandanC Sept-15-1992
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//
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if (wMsg < (EM_GETPASSWORDCHAR - EM_GETSEL + 1)) {
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switch(lpmpex->uMsg = wMsg + EM_GETSEL) {
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case EM_GETSEL:
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// 16 bit apps cannot pass non-zero values in wParam or lParam for this
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// message to NT since they will be considered long pointers.
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// This is a hack for ReportWin - MarkRi
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// NOTE: There is a case possible where the app is trying to pass
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// thru a GETSEL msg that NT has sent it in which case things get more
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// complicated but we haven't found an app YET that has this problem.
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lpmpex->uParam = 0 ;
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lpmpex->lParam = 0 ;
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break ;
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case EM_SETSEL:
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lpmpex->uParam = LOWORD(lpmpex->Parm16.WndProc.lParam);
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lpmpex->lParam = HIWORD(lpmpex->Parm16.WndProc.lParam);
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break;
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case EM_GETLINE:
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GETMISCPTR(lpmpex->Parm16.WndProc.lParam, (LPSZ)lpmpex->lParam);
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break;
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case EM_GETRECT:
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lpmpex->lParam = (LONG)lpmpex->MsgBuffer;
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break;
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case EM_LINESCROLL:
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lpmpex->uParam = INT32(HIWORD(lpmpex->Parm16.WndProc.lParam));
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lpmpex->lParam = INT32(LOWORD(lpmpex->Parm16.WndProc.lParam));
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break;
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case EM_SETHANDLE:
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lpmpex->uParam = (UINT)MAKELONG(lpmpex->Parm16.WndProc.wParam,
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LOWORD(lpmpex->pww->hModule) | 1);
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break;
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case EM_REPLACESEL:
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{ PSZ psz;
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int i;
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GETPSZPTR(lpmpex->Parm16.WndProc.lParam, psz);
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if (psz) {
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i = strlen(psz)+1;
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lpmpex->lParam = (LONG) LocalAlloc (LMEM_FIXED, i);
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if (lpmpex->lParam ) {
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RtlCopyMemory ((PSZ)lpmpex->lParam, psz, i);
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}
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else {
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LOGDEBUG (0, ("WOW::WMSGEM.C: EM_REPLACESEL: Out of Memory Failure/n"));
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}
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}
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FREEPSZPTR(psz);
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}
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break;
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case EM_SETRECT:
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case EM_SETRECTNP:
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if (lpmpex->Parm16.WndProc.lParam) {
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lpmpex->lParam = (LONG)lpmpex->MsgBuffer;
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getrect16((VPRECT16)lpmpex->Parm16.WndProc.lParam, (LPRECT)lpmpex->lParam);
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}
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break;
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case EM_SETTABSTOPS:
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{
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INT cItems = INT32(lpmpex->Parm16.WndProc.wParam);
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if (cItems > 0) {
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(PVOID)lpmpex->lParam = STACKORHEAPALLOC(cItems * sizeof(INT),
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sizeof(lpmpex->MsgBuffer), lpmpex->MsgBuffer);
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getintarray16((VPINT16)lpmpex->Parm16.WndProc.lParam, cItems, (LPINT)lpmpex->lParam);
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}
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}
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break;
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case EM_SETWORDBREAKPROC:
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if (lpmpex->Parm16.WndProc.lParam) {
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LONG l;
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l = lpmpex->Parm16.WndProc.lParam;
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// mark the proc as WOW proc and save the high bits in the RPL
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MarkWOWProc (l,lpmpex->lParam);
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LOGDEBUG (0, ("WOW::WMSGEM.C: EM_SETWORDBREAKPROC: lpmpex->Parm16.WndProc.lParam = %08lx, new lpmpex->Parm16.WndProc.lParam = %08lx\n", lpmpex->Parm16.WndProc.lParam, lpmpex->lParam));
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}
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break;
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case EM_GETSEL + 0x07:
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case EM_GETSEL + 0x0F:
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case EM_GETSEL + 0x10:
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lpmpex->uMsg = 0;
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break;
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} // switch
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}
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return TRUE;
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}
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VOID FASTCALL UnThunkEMMsg16(LPMSGPARAMEX lpmpex)
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{
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LPARAM lParam = lpmpex->Parm16.WndProc.lParam;
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LPARAM lParamNew = lpmpex->lParam;
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switch(lpmpex->uMsg) {
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case EM_SETSEL:
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// EM_SETSEL no longer positions the caret on NT as Win3.1 did. The new
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// procedure is to post or send an EM_SETSEL message and then if you
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// want the caret to be scrolled into view you send an EM_SCROLLCARET
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// message. This code will do this to emulate the Win 3.1 EM_SETSEL
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// correctly on NT.
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if (!lpmpex->Parm16.WndProc.wParam) {
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DWORD dwT;
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if (POSTMSG(dwT))
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PostMessage(lpmpex->hwnd, EM_SCROLLCARET, 0, 0 );
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else
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SendMessage(lpmpex->hwnd, EM_SCROLLCARET, 0, 0 );
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}
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break;
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case EM_GETHANDLE:
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lpmpex->lReturn = GETHMEM16(lpmpex->lReturn);
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break;
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case EM_GETRECT:
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if (lParamNew) {
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putrect16((VPRECT16)lParam, (LPRECT)lParamNew);
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}
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break;
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case EM_REPLACESEL:
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if (lParamNew) {
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LocalFree ((HLOCAL)lParamNew);
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}
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break;
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case EM_SETTABSTOPS:
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if (lpmpex->Parm16.WndProc.wParam > 0) {
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STACKORHEAPFREE((LPINT)lParamNew, lpmpex->MsgBuffer);
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}
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break;
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case EM_GETWORDBREAKPROC:
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if (lpmpex->lReturn) {
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if (IsWOWProc (lpmpex->lReturn)) {
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LOGDEBUG (0, ("WOW::WMSGEM.C: EM_GETWORDBREAKPROC: lReturn = %08lx ", lpmpex->lReturn));
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//Unmark the proc and restore the high bits from rpl field
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UnMarkWOWProc (lpmpex->lReturn,lpmpex->lReturn);
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LOGDEBUG (0, (" and new lReturn = %08lx\n", lpmpex->lReturn));
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}
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else {
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PARM16 Parm16;
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LONG lReturn;
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if (!WordBreakProc16) {
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W32WordBreakProc = (WBP)(lpmpex->lReturn);
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Parm16.SubClassProc.iOrdinal = FUN_WOWWORDBREAKPROC;
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if (!CallBack16(RET_SUBCLASSPROC, &Parm16, (VPPROC)NULL,
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(PVPVOID)&lReturn)) {
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WOW32ASSERT(FALSE);
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WordBreakProc16 = lpmpex->lReturn;
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}
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}
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else {
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lpmpex->lReturn = WordBreakProc16;
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}
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}
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}
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break;
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}
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}
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