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DxWnd.reloaded/dll/dxhook.cpp
gho tik 8f3bc994d0 v2_02_06_src 
Former-commit-id: d4efddb04484dd2edfc4dfcea2129763baf1ca88
2017-03-06 11:17:01 -05:00

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#define _WIN32_WINNT 0x0400
#define WIN32_LEAN_AND_MEAN
#define _CRT_SECURE_NO_DEPRECATE 1
#include <windows.h>
#include <stdio.h>
#include <stdarg.h>
#include "dxwnd.h"
#include "dxwcore.hpp"
#include "dxhook.h"
#include "glhook.h"
#define DXWDECLARATIONS 1
#include "syslibs.h"
#undef DXWDECLARATIONS
#include "dxhelper.h"
dxwCore dxw;
extern void InitScreenParameters();
extern HANDLE hTraceMutex;
CRITICAL_SECTION TraceCS;
static char *FlagNames[32]={
"UNNOTIFY", "EMULATESURFACE", "CLIPCURSOR", "RESETPRIMARY",
"HOOKDI", "MODIFYMOUSE", "HANDLEEXCEPTIONS", "SAVELOAD",
"EMULATEBUFFER", "HANDLEDC", "BLITFROMBACKBUFFER", "SUPPRESSCLIPPING",
"AUTOREFRESH", "FIXWINFRAME", "HIDEHWCURSOR", "SLOWDOWN",
"ENABLECLIPPING", "LOCKWINSTYLE", "MAPGDITOPRIMARY", "FIXTEXTOUT",
"KEEPCURSORWITHIN", "USERGB565", "SUPPRESSDXERRORS", "PREVENTMAXIMIZE",
"ONEPIXELFIX", "FIXPARENTWIN", "SWITCHVIDEOMEMORY", "CLIENTREMAPPING",
"HANDLEALTF4", "LOCKWINPOS", "HOOKCHILDWIN", "MESSAGEPROC"
};
static char *Flag2Names[32]={
"RECOVERSCREENMODE", "REFRESHONRESIZE", "BACKBUFATTACH", "MODALSTYLE",
"KEEPASPECTRATIO", "INIT8BPP", "FORCEWINRESIZE", "INIT16BPP",
"KEEPCURSORFIXED", "DISABLEGAMMARAMP", "DIFFERENTIALMOUSE", "FIXNCHITTEST",
"LIMITFPS", "SKIPFPS", "SHOWFPS", "HIDEMULTIMONITOR",
"TIMESTRETCH", "HOOKOPENGL", "WALLPAPERMODE", "SHOWHWCURSOR",
"HOOKGDI", "", "", "",
"", "", "", "",
"", "", "", "",
};
static char *TFlagNames[32]={
"OUTTRACE", "OUTDDRAWTRACE", "OUTWINMESSAGES", "OUTCURSORTRACE",
"OUTPROXYTRACE", "DXPROXED", "ASSERTDIALOG", "OUTIMPORTTABLE",
"OUTDEBUG", "", "", "",
"", "", "", "",
"", "", "", "",
"", "", "", "",
"", "", "", "",
"", "", "", "",
};
static void OutTraceHeader(FILE *fp)
{
SYSTEMTIME Time;
char Version[20+1];
int i;
DWORD dword;
GetLocalTime(&Time);
GetDllVersion(Version);
fprintf(fp, "*** DxWnd %s log BEGIN: %02d-%02d-%04d %02d:%02d:%02d ***\n",
Version, Time.wDay, Time.wMonth, Time.wYear, Time.wHour, Time.wMinute, Time.wSecond);
fprintf(fp, "*** Flags= ");
for(i=0, dword=dxw.dwFlags1; i<32; i++, dword>>=1) if(dword & 0x1) fprintf(fp, "%s ", FlagNames[i]);
for(i=0, dword=dxw.dwFlags2; i<32; i++, dword>>=1) if(dword & 0x1) fprintf(fp, "%s ", Flag2Names[i]);
for(i=0, dword=dxw.dwTFlags; i<32; i++, dword>>=1) if(dword & 0x1) fprintf(fp, "%s ", TFlagNames[i]);
fprintf(fp, "***\n");
}
void OutTrace(const char *format, ...)
{
va_list al;
static char path[MAX_PATH];
static FILE *fp=NULL; // GHO: thread safe???
// check global log flag
if(!(dxw.dwTFlags & OUTTRACE)) return;
WaitForSingleObject(hTraceMutex, INFINITE);
if (fp == NULL){
GetCurrentDirectory(MAX_PATH, path);
strcat(path, "\\dxwnd.log");
fp = fopen(path, "a+");
if (fp==NULL){ // in case of error (e.g. current dir on unwritable CD unit)...
strcpy(path, getenv("TEMP"));
strcat(path, "\\dxwnd.log");
fp = fopen(path, "a+");
}
if (fp==NULL){ // last chance: do not log...
dxw.dwTFlags &= ~OUTTRACE; // turn flag OFF
return;
}
else
OutTraceHeader(fp);
}
va_start(al, format);
vfprintf(fp, format, al);
va_end(al);
ReleaseMutex(hTraceMutex);
fflush(fp);
}
static void dx_ToggleLogging()
{
// toggle LOGGING
if(dxw.dwTFlags & OUTTRACE){
OutTraceD("Toggle logging OFF\n");
dxw.dwTFlags &= ~OUTTRACE;
}
else {
dxw.dwTFlags |= OUTTRACE;
OutTraceD("Toggle logging ON\n");
}
DxWndStatus.isLogging=(dxw.dwTFlags & OUTTRACE);
SetHookStatus(&DxWndStatus);
}
void DumpImportTable(char *module)
{
DWORD base;
PIMAGE_NT_HEADERS pnth;
PIMAGE_IMPORT_DESCRIPTOR pidesc;
DWORD rva;
PSTR impmodule;
PIMAGE_THUNK_DATA ptaddr;
PIMAGE_THUNK_DATA ptname;
PIMAGE_IMPORT_BY_NAME piname;
base = (DWORD)GetModuleHandle(module);
OutTrace("DumpImportTable: base=%x\n", base);
if(!base) {
OutTrace("DumpImportTable: GetModuleHandle failed, err=%d at %d\n",GetLastError(), __LINE__);
return;
}
__try{
pnth = PIMAGE_NT_HEADERS(PBYTE(base) + PIMAGE_DOS_HEADER(base)->e_lfanew);
if(!pnth) {
OutTrace("DumpImportTable: ERROR no pnth at %d\n", __LINE__);
return;
}
rva = pnth->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_IMPORT].VirtualAddress;
if(!rva) {
OutTrace("DumpImportTable: ERROR no rva at %d\n", __LINE__);
return;
}
pidesc = (PIMAGE_IMPORT_DESCRIPTOR)(base + rva);
while(pidesc->FirstThunk){
impmodule = (PSTR)(base + pidesc->Name);
OutTrace("DumpImportTable: ENTRY timestamp=%x module=%s forwarderchain=%x\n",
pidesc->TimeDateStamp, impmodule, pidesc->ForwarderChain);
if(pidesc->OriginalFirstThunk) {
ptname = (PIMAGE_THUNK_DATA)(base + (DWORD)pidesc->OriginalFirstThunk);
}
else{
ptname = 0;
OutTrace("DumpImportTable: no PE OFTs - stripped module=%s\n", impmodule);
}
ptaddr = (PIMAGE_THUNK_DATA)(base + (DWORD)pidesc->FirstThunk);
while(ptaddr->u1.Function){
OutTrace("addr=%x", ptaddr->u1.Function);
ptaddr ++;
if(ptname){
if(!IMAGE_SNAP_BY_ORDINAL(ptname->u1.Ordinal)){
piname = (PIMAGE_IMPORT_BY_NAME)(base + (DWORD)ptname->u1.AddressOfData);
OutTrace(" hint=%x name=%s", piname->Hint, piname->Name);
ptname ++;
}
}
OutTrace("\n");
}
OutTrace("*** EOT ***\n", ptaddr->u1.Function);
pidesc ++;
}
}
__except(EXCEPTION_EXECUTE_HANDLER)
{
OutTraceD("DumpImportTable: EXCEPTION\n");
}
return;
}
void SetHook(void *target, void *hookproc, void **hookedproc, char *hookname)
{
void *tmp;
char msg[81];
DWORD dwTmp, oldprot;
static DWORD MinHook=0xFFFFFFFF;
static DWORD MaxHook=0;
// keep track of hooked call range to avoid re-hooking of hooked addresses !!!
if ((DWORD)hookproc < MinHook) MinHook=(DWORD)hookproc;
if ((DWORD)hookproc > MaxHook) MaxHook=(DWORD)hookproc;
dwTmp = *(DWORD *)target;
if(dwTmp == (DWORD)hookproc) return; // already hooked
if((dwTmp <= MaxHook) && (dwTmp >= MinHook)) return; // already hooked
if(!VirtualProtect(target, 4, PAGE_READWRITE, &oldprot)) return; // error condition
*(DWORD *)target = (DWORD)hookproc;
VirtualProtect(target, 4, oldprot, &oldprot);
tmp=(void *)dwTmp;
if (*hookedproc && *hookedproc!=tmp) {
sprintf(msg,"SetHook: proc=%s oldhook=%x newhook=%x\n", hookname, hookedproc, tmp);
OutTraceD(msg);
if (IsAssertEnabled) MessageBox(0, msg, "SetHook", MB_OK | MB_ICONEXCLAMATION);
}
*hookedproc = tmp;
}
void *HookAPI(const char *module, char *dll, void *apiproc, const char *apiname, void *hookproc)
{
DWORD base;
PIMAGE_NT_HEADERS pnth;
PIMAGE_IMPORT_DESCRIPTOR pidesc;
DWORD rva;
PSTR impmodule;
PIMAGE_THUNK_DATA ptaddr;
PIMAGE_THUNK_DATA ptname;
PIMAGE_IMPORT_BY_NAME piname;
DWORD oldprotect;
void *org;
if(!*apiname) { // check
char *sMsg="HookAPI: NULL api name\n";
OutTraceE(sMsg);
if (IsAssertEnabled) MessageBox(0, sMsg, "HookAPI", MB_OK | MB_ICONEXCLAMATION);
return 0;
}
base = (DWORD)GetModuleHandle(module);
if(!base) {
OutTraceD("HookAPI: GetModuleHandle failed, error=%d\n",GetLastError());
return 0;
}
__try{
pnth = PIMAGE_NT_HEADERS(PBYTE(base) + PIMAGE_DOS_HEADER(base)->e_lfanew);
if(!pnth) {
OutTraceE("HookAPI: ERROR no pnth at %d\n", __LINE__);
return 0;
}
rva = pnth->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_IMPORT].VirtualAddress;
if(!rva) {
OutTraceE("HookAPI: ERROR no rva at %d\n", __LINE__);
return 0;
}
pidesc = (PIMAGE_IMPORT_DESCRIPTOR)(base + rva);
while(pidesc->FirstThunk){
impmodule = (PSTR)(base + pidesc->Name);
if(!lstrcmpi(dll, impmodule)) break;
pidesc ++;
}
if(!pidesc->FirstThunk) {
if (IsDebug) OutTraceD("HookAPI: PE unreferenced dll=%s\n", dll);
return 0;
}
ptaddr = (PIMAGE_THUNK_DATA)(base + (DWORD)pidesc->FirstThunk);
ptname = (pidesc->OriginalFirstThunk) ? (PIMAGE_THUNK_DATA)(base + (DWORD)pidesc->OriginalFirstThunk) : NULL;
if((apiproc==NULL) && (ptname==NULL)){
if (IsDebug) OutTraceD("HookAPI: unreacheable api=%s dll=%s\n", apiname, dll);
return 0;
}
while(ptaddr->u1.Function){
if (ptname){
if(!IMAGE_SNAP_BY_ORDINAL(ptname->u1.Ordinal)){
piname = (PIMAGE_IMPORT_BY_NAME)(base + (DWORD)ptname->u1.AddressOfData);
if(!lstrcmpi(apiname, (char *)piname->Name)) break;
}
}
if (apiproc){
if(ptaddr->u1.Function == (DWORD)apiproc) break;
}
ptaddr ++;
if (ptname) ptname ++;
}
if(!ptaddr->u1.Function) return 0;
org = (void *)ptaddr->u1.Function;
if(org == hookproc) return 0; // already hooked
if(!VirtualProtect(&ptaddr->u1.Function, 4, PAGE_EXECUTE_READWRITE, &oldprotect)) {
OutTraceD("HookAPI: VirtualProtect error %d at %d\n", GetLastError(), __LINE__);
return 0;
}
ptaddr->u1.Function = (DWORD)hookproc;
if(!VirtualProtect(&ptaddr->u1.Function, 4, oldprotect, &oldprotect)) {
OutTraceD("HookAPI: VirtualProtect error %d at %d\n", GetLastError(), __LINE__);
return 0;
}
if (!FlushInstructionCache(GetCurrentProcess(), &ptaddr->u1.Function, 4)) {
OutTraceD("HookAPI: FlushInstructionCache error %d at %d\n", GetLastError(), __LINE__);
return 0;
}
//OutTraceD("HookAPI hook=%s.%s address=%x->%x\n", module, apiname, org, hookproc);
}
__except(EXCEPTION_EXECUTE_HANDLER)
{
OutTraceD("HookAPI: EXCEPTION hook=%s:%s Hook Failed.\n", dll, apiname);
org = 0;
}
return org;
}
// v.2.1.80: unified positioning logic into CalculateWindowPos routine
// now taking in account for window menus (see "Alien Cabal")
void CalculateWindowPos(HWND hwnd, DWORD width, DWORD height, LPWINDOWPOS wp)
{
RECT rect;
DWORD dwStyle;
int MaxX, MaxY;
HMENU hMenu;
rect.left = dxw.iPosX;
rect.top = dxw.iPosX;
MaxX = dxw.iSizX;
MaxY = dxw.iSizY;
if (!MaxX) MaxX = width;
if (!MaxY) MaxY = height;
rect.right = dxw.iPosX+MaxX;
rect.bottom = dxw.iPosX+MaxY;
dwStyle=(*pGetWindowLong)(hwnd, GWL_STYLE);
hMenu = GetMenu(hwnd);
AdjustWindowRect(&rect, dwStyle, (hMenu!=NULL));
// shift down-right so that the border is visible
// and also update the iPosX,iPosY upper-left coordinates of the client area
if(rect.left < 0){
rect.right -= rect.left;
rect.left = 0;
}
if(rect.top < 0){
rect.bottom -= rect.top;
rect.top = 0;
}
wp->x=rect.left;
wp->y=rect.top;
wp->cx=rect.right-rect.left;
wp->cy=rect.bottom-rect.top;
}
void AdjustWindowPos(HWND hwnd, DWORD width, DWORD height)
{
WINDOWPOS wp;
OutTraceD("AdjustWindowPos: hwnd=%x, size=(%d,%d)\n", hwnd, width, height);
CalculateWindowPos(hwnd, width, height, &wp);
OutTraceD("AdjustWindowPos: fixed pos=(%d,%d) size=(%d,%d)\n", wp.x, wp.y, wp.cx, wp.cy);
if(!(*pSetWindowPos)(hwnd, 0, wp.x, wp.y, wp.cx, wp.cy, 0)){
OutTraceE("AdjustWindowPos: ERROR err=%d at %d\n", GetLastError(), __LINE__);
}
return;
}
void AdjustWindowFrame(HWND hwnd, DWORD width, DWORD height)
{
HRESULT res=0;
WNDPROC pWindowProc;
OutTraceD("AdjustWindowFrame hwnd=%x, wxh=%dx%d\n", hwnd, width, height);
dxw.SetScreenSize(width, height);
if (hwnd==NULL) return;
(*pSetWindowLong)(hwnd, GWL_STYLE, (dxw.dwFlags2 & MODALSTYLE) ? 0 : WS_OVERLAPPEDWINDOW);
(*pSetWindowLong)(hwnd, GWL_EXSTYLE, 0);
(*pShowWindow)(hwnd, SW_SHOWNORMAL);
OutTraceD("AdjustWindowFrame hwnd=%x, set style=WS_OVERLAPPEDWINDOW extstyle=0\n", hwnd);
AdjustWindowPos(hwnd, width, height);
// fixing windows message handling procedure
pWindowProc = (WNDPROC)(*pGetWindowLong)(hwnd, GWL_WNDPROC);
if (((DWORD)pWindowProc & 0xFFFF0000) == 0xFFFF0000){
// don't hook pseudo-callbacks (v2.1.71: Commandos 2)
OutTraceD("GetWindowLong: no valid WindowProc routine detected, hwnd=%x WindowProc=%x\n", hwnd, (DWORD)pWindowProc);
}
else
if (pWindowProc == extWindowProc){
// hooked already !!!
OutTraceD("GetWindowLong: extWindowProc already in place, hwnd=%x\n", hwnd);
}
else {// don't hook twice ....
long lres;
WhndStackPush(hwnd, pWindowProc);
lres=(*pSetWindowLong)(hwnd, GWL_WNDPROC, (LONG)extWindowProc);
OutTraceD("AdjustWindowFrame: fixing hwnd=%x WindowProc=%x->%x\n", hwnd, lres, (LONG)extWindowProc);
}
// fixing cursor view and clipping region
if (dxw.dwFlags1 & HIDEHWCURSOR) while ((*pShowCursor)(0) >= 0);
if (dxw.dwFlags2 & SHOWHWCURSOR) while((*pShowCursor)(1) < 0);
if (dxw.dwFlags1 & CLIPCURSOR) {
OutTraceD("AdjustWindowFrame: setting clip region\n");
dxw.SetClipCursor();
}
(*pInvalidateRect)(hwnd, NULL, TRUE);
}
INT_PTR CALLBACK extDialogWindowProc(HWND hwnd, UINT message, WPARAM wparam, LPARAM lparam)
{
static int i=0;
static WINDOWPOS *wp;
WNDPROC pWindowProc;
static int t = -1;
if (t == -1)
t = GetTickCount();
int tn = GetTickCount();
OutTraceW("DEBUG: DialogWinMsg [0x%x]%s(%x,%x)\n", message, ExplainWinMessage(message), wparam, lparam);
// optimization: don't invalidate too often!
// 200mSec seems a good compromise.
if (tn-t > 200) {
(*pInvalidateRect)(hwnd, NULL, TRUE);
t=tn;
}
pWindowProc=WhndGetWindowProc(hwnd);
if(pWindowProc) return(*pWindowProc)(hwnd, message, wparam, lparam);
char *sMsg="ASSERT: DialogWinMsg pWindowProc=NULL !!!\n";
OutTraceD(sMsg);
if (IsAssertEnabled) MessageBox(0, sMsg, "WindowProc", MB_OK | MB_ICONEXCLAMATION);
return NULL;
}
LRESULT CALLBACK extChildWindowProc(HWND hwnd, UINT message, WPARAM wparam, LPARAM lparam)
{
static int i=0;
static WINDOWPOS *wp;
WNDPROC pWindowProc;
OutTraceW("DEBUG: ChildWinMsg [0x%x]%s(%x,%x)\n", message, ExplainWinMessage(message), wparam, lparam);
switch(message){
// Cybermercs: it seems that all game menus are conveniently handled by the WindowProc routine,
// while the action screen get messages processed by the ChildWindowProc, that needs some different
// setting ..........
// Beware: Cybermercs handles some static info about curror position handling, so that if you resize
// a menu it doesn't work correctly until you don't change screen.
case WM_MOUSEMOVE:
case WM_MOUSEWHEEL:
case WM_LBUTTONDOWN:
case WM_LBUTTONUP:
case WM_LBUTTONDBLCLK:
case WM_RBUTTONDOWN:
case WM_RBUTTONUP:
case WM_RBUTTONDBLCLK:
case WM_MBUTTONDOWN:
case WM_MBUTTONUP:
case WM_MBUTTONDBLCLK:
if(dxw.dwFlags1 & MODIFYMOUSE){ // mouse processing
POINT prev, curr;
// scale mouse coordinates
prev.x = LOWORD(lparam);
prev.y = HIWORD(lparam);
//OutTraceC("ChildWindowProc: hwnd=%x pos XY prev=(%d,%d)\n", hwnd, prev.x, prev.y);
curr=dxw.FixCursorPos(prev); // Warn! the correction must refer to the main window hWnd, not the current hwnd one !!!
lparam = MAKELPARAM(curr.x, curr.y);
OutTraceC("ChildWindowProc: hwnd=%x pos XY=(%d,%d)->(%d,%d)\n", hwnd, prev.x, prev.y, curr.x, curr.y);
}
break;
default:
break;
}
pWindowProc=WhndGetWindowProc(hwnd);
if(pWindowProc) return(*pWindowProc)(hwnd, message, wparam, lparam);
return DefWindowProc(hwnd, message, wparam, lparam);
}
static void dx_TogglePositionLock(HWND hwnd)
{
// toggle position locking
if(dxw.dwFlags1 & LOCKWINPOS){
// unlock
OutTraceD("Toggle position lock OFF\n");
dxw.dwFlags1 &= ~LOCKWINPOS;
}
else {
// lock and update window position!!!
// v2.1.80: fixed
RECT rect;
POINT p={0,0};
(*pGetClientRect)(hwnd,&rect);
(*pClientToScreen)(hwnd,&p);
dxw.dwFlags1 |= LOCKWINPOS;
OutTraceD("Toggle position lock ON\n");
dxw.InitWindowPos(p.x, p.y, rect.right-rect.left, rect.bottom-rect.top);
}
}
static void dx_ToggleDC()
{
if(dxw.dwFlags1 & HANDLEDC){
dxw.dwFlags1 &= ~HANDLEDC;
OutTrace("ToggleDC: HANDLEDC mode OFF\n");
}
else {
dxw.dwFlags1 |= HANDLEDC;
OutTrace("ToggleDC: HANDLEDC mode ON\n");
}
}
static void dx_ToggleFPS()
{
if(dxw.dwFlags2 & SHOWFPS){
dxw.dwFlags2 &= ~SHOWFPS;
OutTrace("ToggleFPS: SHOWFPS mode OFF\n");
}
else {
dxw.dwFlags2 |= SHOWFPS;
OutTrace("ToggleFPS: SHOWFPS mode ON\n");
}
}
LRESULT LastCursorPos;
LRESULT CALLBACK extWindowProc(HWND hwnd, UINT message, WPARAM wparam, LPARAM lparam)
{
POINT prev, curr;
RECT rect;
static int i=0;
static int ClipCursorToggleState = 1;
WNDPROC pWindowProc;
extern void dxwFixWindowPos(char *, HWND, LPARAM);
extern LPRECT lpClipRegion;
// v2.1.93: adjust clipping region
OutTraceW("WindowProc: WinMsg=[0x%x]%s(%x,%x)\n", message, ExplainWinMessage(message), wparam, lparam);
#if 0
if(dxw.dwFlags2 & WALLPAPERMODE) {
static int t=0;
if ((*pGetTickCount)() - t > 100){
//if (GetTopWindow(NULL)==hwnd){
{
(*pSetWindowPos)(hwnd, HWND_BOTTOM, 0, 0, 0, 0, SWP_NOMOVE);
t = (*pGetTickCount)();
}
}
//if ((message >= WM_MOUSEFIRST) && (message <= WM_MOUSELAST)) return 0;
//if (message == WM_WINDOWPOSCHANGED) {
// t=0;
// return 0;
//}
}
#endif
switch(message){
case WM_NCHITTEST:
if((dxw.dwFlags2 & FIXNCHITTEST) && (dxw.dwFlags1 & MODIFYMOUSE)){ // mouse processing
POINT cursor;
LRESULT ret;
ret=(*pDefWindowProc)(hwnd, message, wparam, lparam);
if (ret==HTCLIENT) {
cursor.x=LOWORD(lparam);
cursor.y=HIWORD(lparam);
dxw.FixNCHITCursorPos(&cursor);
lparam = MAKELPARAM(cursor.x, cursor.y);
}
else
return ret;
}
break;
case WM_ERASEBKGND:
OutTraceD("WindowProc: WM_ERASEBKGND(%x,%x) - suppressed\n", wparam, lparam);
return 1; // 1 == OK, erased
break;
case WM_DISPLAYCHANGE:
if ((dxw.dwFlags1 & LOCKWINPOS) && dxw.IsFullScreen()){
OutTraceD("WindowProc: prevent WM_DISPLAYCHANGE depth=%d size=(%d,%d)\n",
wparam, HIWORD(lparam), LOWORD(lparam));
return 0;
}
break;
case WM_WINDOWPOSCHANGING:
dxwFixWindowPos("WindowProc", hwnd, lparam);
break;
case WM_WINDOWPOSCHANGED:
dxwFixWindowPos("WindowProc", hwnd, lparam);
break;
case WM_ENTERSIZEMOVE:
while((*pShowCursor)(1) < 0);
if(dxw.dwFlags1 & CLIPCURSOR) dxw.EraseClipCursor();
if(dxw.dwFlags1 & ENABLECLIPPING) (*pClipCursor)(NULL);
break;
case WM_EXITSIZEMOVE:
if (dxw.dwFlags1 & HIDEHWCURSOR) while((*pShowCursor)(0) >= 0);
if (dxw.dwFlags2 & SHOWHWCURSOR) while((*pShowCursor)(1) < 0);
if(dxw.dwFlags1 & ENABLECLIPPING) extClipCursor(lpClipRegion);
if(dxw.dwFlags2 & REFRESHONRESIZE) dxw.ScreenRefresh();
break;
case WM_ACTIVATE:
dxw.bActive = (LOWORD(wparam) == WA_ACTIVE || LOWORD(wparam) == WA_CLICKACTIVE) ? 1 : 0;
case WM_NCACTIVATE:
if(message == WM_NCACTIVATE) dxw.bActive = wparam;
(*pSetWindowPos)(hwnd, HWND_NOTOPMOST, 0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE);
if(dxw.dwFlags1 & UNNOTIFY){
DefWindowProc(hwnd, message, wparam, lparam);
return false;
}
break;
case WM_NCMOUSEMOVE:
// Posted to a window when the cursor is moved within the nonclient area of the window.
// This message is posted to the window that contains the cursor.
// If a window has captured the mouse, this message is not posted.
// V2.1.90: on nonclient areas the cursor is always shown.
while((*pShowCursor)(1) < 0);
break;
case WM_MOUSEMOVE:
prev.x = LOWORD(lparam);
prev.y = HIWORD(lparam);
if (dxw.dwFlags1 & HIDEHWCURSOR) {
(*pGetClientRect)(hwnd, &rect);
if(prev.x >= 0 && prev.x < rect.right && prev.y >= 0 && prev.y < rect.bottom)
while((*pShowCursor)(0) >= 0);
else
while((*pShowCursor)(1) < 0);
}
else {
while((*pShowCursor)(1) < 0);
}
if(dxw.dwFlags1 & MODIFYMOUSE){ // mouse processing
// scale mouse coordinates
curr=dxw.FixCursorPos(hwnd, prev);
lparam = MAKELPARAM(curr.x, curr.y);
OutTraceC("WindowProc: hwnd=%x pos XY=(%d,%d)->(%d,%d)\n", hwnd, prev.x, prev.y, curr.x, curr.y);
}
break;
// fall through cases:
case WM_MOUSEWHEEL:
case WM_LBUTTONDOWN:
case WM_LBUTTONUP:
case WM_LBUTTONDBLCLK:
case WM_RBUTTONDOWN:
case WM_RBUTTONUP:
case WM_RBUTTONDBLCLK:
case WM_MBUTTONDOWN:
case WM_MBUTTONUP:
case WM_MBUTTONDBLCLK:
if((dxw.dwFlags1 & CLIPCURSOR) && ClipCursorToggleState) dxw.SetClipCursor();
if(dxw.dwFlags1 & MODIFYMOUSE){ // mouse processing
// scale mouse coordinates
prev.x = LOWORD(lparam);
prev.y = HIWORD(lparam);
curr=dxw.FixCursorPos(hwnd, prev);
lparam = MAKELPARAM(curr.x, curr.y);
OutTraceC("WindowProc: hwnd=%x pos XY=(%d,%d)->(%d,%d)\n", hwnd, prev.x, prev.y, curr.x, curr.y);
}
break;
case WM_SETFOCUS:
if (dxw.dwFlags1 & ENABLECLIPPING) extClipCursor(lpClipRegion);
break;
case WM_KILLFOCUS:
if (dxw.dwFlags1 & CLIPCURSOR) dxw.EraseClipCursor();
if (dxw.dwFlags1 & ENABLECLIPPING) (*pClipCursor)(NULL);
break;
case WM_CLOSE:
OutTraceD("WindowProc: WM_CLOSE - terminating process\n");
TerminateProcess(GetCurrentProcess(),0);
break;
case WM_SYSKEYDOWN:
OutTraceW("event WM_SYSKEYDOWN wparam=%x lparam=%x\n", wparam, lparam);
switch (wparam){
case VK_F12:
if(dxw.dwFlags1 & CLIPCURSOR){
OutTraceD("WindowProc: WM_SYSKEYDOWN key=%x ToggleState=%x\n",wparam,ClipCursorToggleState);
ClipCursorToggleState = !ClipCursorToggleState;
ClipCursorToggleState ? dxw.SetClipCursor() : dxw.EraseClipCursor();
}
case VK_F11:
dxw.ScreenRefresh();
break;
case VK_F10:
dx_ToggleLogging();
break;
case VK_F9:
dx_TogglePositionLock(hwnd);
break;
case VK_F8:
dx_ToggleDC();
break;
case VK_F7:
dx_ToggleFPS();
break;
case VK_F6:
case VK_F5:
if (dxw.dwFlags2 & TIMESTRETCH) {
char *sTSCaption[17]={"x16","x8","x4","x2","x1",":2",":4",":8",":16"};
if (wparam == VK_F5 && (dxw.TimeShift < 8)) dxw.TimeShift++;
if (wparam == VK_F6 && (dxw.TimeShift > -8)) dxw.TimeShift--;
OutTrace("Time Stretch: shift=%d speed=%s\n", dxw.TimeShift, dxw.GetTSCaption());
DxWndStatus.iTimeShift=dxw.TimeShift;
SetHookStatus(&DxWndStatus);
}
break;
case VK_F4:
if (dxw.dwFlags1 & HANDLEALTF4) {
OutTraceD("WindowProc: WM_SYSKEYDOWN(ALT-F4) - terminating process\n");
TerminateProcess(GetCurrentProcess(),0);
}
break;
default:
break;
}
default:
break;
}
if (dxw.dwFlags1 & AUTOREFRESH)
{
dxw.ScreenRefresh();
}
pWindowProc=WhndGetWindowProc(hwnd);
if(pWindowProc) {
LRESULT ret;
ret=(*pWindowProc)(hwnd, message, wparam, lparam);
// save last NCHITTEST cursor position for use with KEEPASPECTRATIO scaling
if(message==WM_NCHITTEST) LastCursorPos=ret;
// v2.1.89: if FORCEWINRESIZE add standard processing for the missing WM_NC* messages
if(dxw.dwFlags2 & FORCEWINRESIZE){
switch(message){
//case WM_NCHITTEST:
//case WM_NCPAINT:
//case WM_NCMOUSEMOVE:
//case WM_NCCALCSIZE:
//case WM_NCACTIVATE:
case WM_SETCURSOR: // shows a different cursor when moving on borders
case WM_NCLBUTTONDOWN: // intercepts mouse down on borders
case WM_NCLBUTTONUP: // intercepts mouse up on borders
ret=(*pDefWindowProc)(hwnd, message, wparam, lparam);
break;
}
}
return ret;
}
//OutTraceD("ASSERT: WindowProc mismatch hwnd=%x\n", hwnd);
// ??? maybe it's a normal condition, whenever you don't have a WindowProc routine
// like in Commandos 2. Flag it?
char sMsg[81];
sprintf(sMsg,"ASSERT: WindowProc mismatch hwnd=%x\n", hwnd);
OutTraceD(sMsg);
if (IsAssertEnabled) MessageBox(0, sMsg, "WindowProc", MB_OK | MB_ICONEXCLAMATION);
return (*pDefWindowProc)(hwnd, message, wparam, lparam);
}
void HookSysLibsInit()
{
pLoadLibraryA = LoadLibrary;
pGetProcAddress = (GetProcAddress_Type)GetProcAddress;
pGDICreateCompatibleDC=CreateCompatibleDC;
pGDIDeleteDC=DeleteDC;
pGDIGetDC=GetDC;
pGDIGetWindowDC=GetWindowDC;
pGDIReleaseDC=ReleaseDC;
pGDICreateDC=CreateDC;
pGDIBitBlt=BitBlt;
pGDIStretchBlt=StretchBlt;
pBeginPaint=BeginPaint;
pEndPaint=EndPaint;
pInvalidateRect=InvalidateRect;
pScreenToClient = ScreenToClient;
pClientToScreen = ClientToScreen;
pGetClientRect = GetClientRect;
pGetWindowRect = GetWindowRect;
pMapWindowPoints= MapWindowPoints;
pChangeDisplaySettings=ChangeDisplaySettingsA;
pChangeDisplaySettingsEx=ChangeDisplaySettingsExA;
pClipCursor = ClipCursor;
pFillRect = FillRect;
pPeekMessage = PeekMessage;
pGetMessage = GetMessage;
pDefWindowProc = DefWindowProc;
pGDIGetDeviceCaps = GetDeviceCaps;
pGDITextOutA = TextOutA;
pGDIScaleWindowExtEx = ScaleWindowExtEx;
pCreateWindowExA = CreateWindowExA;
pRegisterClassExA = (RegisterClassExA_Type)RegisterClassExA;
pGDIRectangle = Rectangle;
pSetWindowPos=SetWindowPos;
pGDIDeferWindowPos=DeferWindowPos;
pSetWindowLong=SetWindowLongA;
pGetWindowLong=GetWindowLongA;
pCallWindowProc=CallWindowProcA;
pShowWindow=ShowWindow;
pGDISetTextColor = SetTextColor;
pGDISetBkColor = SetBkColor;
pGDICreateFont = CreateFont;
pGDICreateFontIndirect = CreateFontIndirect;
pGetSystemMetrics = GetSystemMetrics;
pGetCursorPos = GetCursorPos;
pSetCursorPos = SetCursorPos;
pSetCursor = SetCursor;
pCreateDialogIndirectParam=CreateDialogIndirectParamA;
pCreateDialogParam=CreateDialogParamA;
pMoveWindow=MoveWindow;
pGetDesktopWindow=GetDesktopWindow;
pShowCursor=ShowCursor;
pGetTickCount=GetTickCount;
pSleep=Sleep;
pSleepEx=SleepEx;
pGetSystemTime=GetSystemTime;
pGetLocalTime=GetLocalTime;
pSetTimer=SetTimer;
}
void HookGDILib(char *module)
{
void *tmp;
if(dxw.dwFlags1 & MAPGDITOPRIMARY){
tmp = HookAPI(module, "GDI32.dll", CreateCompatibleDC, "CreateCompatibleDC", extDDCreateCompatibleDC);
if(tmp) pGDICreateCompatibleDC = (CreateCompatibleDC_Type)tmp;
tmp = HookAPI(module, "GDI32.dll", DeleteDC, "DeleteDC", extDDDeleteDC);
if(tmp) pGDIDeleteDC = (DeleteDC_Type)tmp;
tmp = HookAPI(module, "GDI32.dll", CreateDCA, "CreateDCA", extDDCreateDC);
if(tmp) pGDICreateDC = (CreateDC_Type)tmp;
tmp = HookAPI(module, "GDI32.dll", BitBlt, "BitBlt", extDDBitBlt);
if(tmp) pGDIBitBlt = (BitBlt_Type)tmp;
tmp = HookAPI(module, "GDI32.dll", StretchBlt, "StretchBlt", extDDStretchBlt);
if(tmp) pGDIStretchBlt = (StretchBlt_Type)tmp;
}
else {
tmp = HookAPI(module, "GDI32.dll", CreateCompatibleDC, "CreateCompatibleDC", extGDICreateCompatibleDC);
if(tmp) pGDICreateCompatibleDC = (CreateCompatibleDC_Type)tmp;
tmp = HookAPI(module, "GDI32.dll", DeleteDC, "DeleteDC", extGDIDeleteDC);
if(tmp) pGDIDeleteDC = (DeleteDC_Type)tmp;
tmp = HookAPI(module, "GDI32.dll", CreateDCA, "CreateDCA", extGDICreateDC);
if(tmp) pGDICreateDC = (CreateDC_Type)tmp;
tmp = HookAPI(module, "GDI32.dll", BitBlt, "BitBlt", extGDIBitBlt);
if(tmp) pGDIBitBlt = (BitBlt_Type)tmp;
tmp = HookAPI(module, "GDI32.dll", StretchBlt, "StretchBlt", extGDIStretchBlt);
if(tmp) pGDIStretchBlt = (StretchBlt_Type)tmp;
tmp = HookAPI(module, "GDI32.dll", PatBlt, "PatBlt", extGDIPatBlt);
if(tmp) pGDIPatBlt = (PatBlt_Type)tmp;
}
tmp = HookAPI(module, "GDI32.dll", GetDeviceCaps, "GetDeviceCaps", extGetDeviceCaps); // GHO: added for caesar3
if(tmp) pGDIGetDeviceCaps = (GetDeviceCaps_Type)tmp;
tmp = HookAPI(module, "GDI32.dll", TextOutA, "TextOutA", extTextOutA);
if(tmp) pGDITextOutA = (TextOut_Type)tmp;
tmp = HookAPI(module, "GDI32.dll", ScaleWindowExtEx, "ScaleWindowExtEx", extScaleWindowExtEx);
if(tmp) pGDIScaleWindowExtEx = (ScaleWindowExtEx_Type)tmp;
tmp = HookAPI(module, "GDI32.dll", Rectangle, "Rectangle", extRectangle);
if(tmp) pGDIRectangle = (Rectangle_Type)tmp;
tmp = HookAPI(module, "GDI32.dll", SaveDC, "SaveDC", extGDISaveDC);
if(tmp) pGDISaveDC = (SaveDC_Type)tmp;
tmp = HookAPI(module, "GDI32.dll", RestoreDC, "RestoreDC", extGDIRestoreDC);
if(tmp) pGDIRestoreDC = (RestoreDC_Type)tmp;
tmp = HookAPI(module, "GDI32.dll", CreatePalette, "CreatePalette", extGDICreatePalette);
if(tmp) pGDICreatePalette = (GDICreatePalette_Type)tmp;
tmp = HookAPI(module, "GDI32.dll", SelectPalette, "SelectPalette", extSelectPalette);
if(tmp) pGDISelectPalette = (SelectPalette_Type)tmp;
tmp = HookAPI(module, "GDI32.dll", RealizePalette, "RealizePalette", extRealizePalette);
if(tmp) pGDIRealizePalette = (RealizePalette_Type)tmp;
tmp = HookAPI(module, "GDI32.dll", GetSystemPaletteEntries, "GetSystemPaletteEntries", extGetSystemPaletteEntries);
if(tmp) pGDIGetSystemPaletteEntries = (GetSystemPaletteEntries_Type)tmp;
if ((dxw.dwFlags1 & EMULATESURFACE) && (dxw.dwFlags1 & HANDLEDC)){
tmp = HookAPI(module, "GDI32.dll", SetTextColor, "SetTextColor", extSetTextColor);
if(tmp) pGDISetTextColor = (SetTextColor_Type)tmp;
tmp = HookAPI(module, "GDI32.dll", SetBkColor, "SetBkColor", extSetBkColor);
if(tmp) pGDISetBkColor = (SetBkColor_Type)tmp;
tmp = HookAPI(module, "GDI32.dll", CreateFont, "CreateFont", extCreateFont);
if(tmp) pGDICreateFont = (CreateFont_Type)tmp;
tmp = HookAPI(module, "GDI32.dll", CreateFontIndirectA, "CreateFontIndirectA", extCreateFontIndirect);
if(tmp) pGDICreateFontIndirect = (CreateFontIndirect_Type)tmp;
}
if(dxw.dwFlags2 & DISABLEGAMMARAMP){
tmp = HookAPI(module, "GDI32.dll", SetDeviceGammaRamp, "SetDeviceGammaRamp", extSetDeviceGammaRamp);
if(tmp) pGDISetDeviceGammaRamp = (SetDeviceGammaRamp_Type)tmp;
tmp = HookAPI(module, "GDI32.dll", GetDeviceGammaRamp, "GetDeviceGammaRamp", extGetDeviceGammaRamp);
if(tmp) pGDIGetDeviceGammaRamp = (GetDeviceGammaRamp_Type)tmp;
}
}
void HookSysLibs(char *module)
{
void *tmp;
tmp = HookAPI(module, "kernel32.dll", GetProcAddress, "GetProcAddress", extGetProcAddress);
if(tmp) pGetProcAddress = (GetProcAddress_Type)tmp;
tmp = HookAPI(module, "kernel32.dll", LoadLibraryA, "LoadLibraryA", extLoadLibraryA);
if(tmp) pLoadLibraryA = (LoadLibraryA_Type)tmp;
tmp = HookAPI(module, "kernel32.dll", LoadLibraryExA, "LoadLibraryExA", extLoadLibraryExA);
if(tmp) pLoadLibraryExA = (LoadLibraryExA_Type)tmp;
tmp = HookAPI(module, "user32.dll", BeginPaint, "BeginPaint", extBeginPaint);
if(tmp) pBeginPaint = (BeginPaint_Type)tmp;
tmp = HookAPI(module, "user32.dll", EndPaint, "EndPaint", extEndPaint);
if(tmp) pEndPaint = (EndPaint_Type)tmp;
tmp = HookAPI(module, "user32.dll", ShowCursor, "ShowCursor", extShowCursor);
if(tmp) pShowCursor = (ShowCursor_Type)tmp;
if(dxw.dwFlags1 & MAPGDITOPRIMARY){
tmp = HookAPI(module, "user32.dll", GetDC, "GetDC", extDDGetDC);
if(tmp) pGDIGetDC = (GDIGetDC_Type)tmp;
tmp = HookAPI(module, "user32.dll", GetWindowDC, "GetWindowDC", extDDGetWindowDC);
if(tmp) pGDIGetWindowDC = (GDIGetDC_Type)tmp;
tmp = HookAPI(module, "user32.dll", ReleaseDC, "ReleaseDC", extDDReleaseDC);
if(tmp) pGDIReleaseDC = (GDIReleaseDC_Type)tmp;
tmp = HookAPI(module, "user32.dll", InvalidateRect, "InvalidateRect", extDDInvalidateRect);
if(tmp) pInvalidateRect = (InvalidateRect_Type)tmp;
}
else{
tmp = HookAPI(module, "user32.dll", GetDC, "GetDC", extGDIGetDC);
if(tmp) pGDIGetDC = (GDIGetDC_Type)tmp;
tmp = HookAPI(module, "user32.dll", GetWindowDC, "GetWindowDC", extGDIGetWindowDC);
if(tmp) pGDIGetWindowDC = (GDIGetDC_Type)tmp;
tmp = HookAPI(module, "user32.dll", ReleaseDC, "ReleaseDC", extGDIReleaseDC);
if(tmp) pGDIReleaseDC = (GDIReleaseDC_Type)tmp;
tmp = HookAPI(module, "user32.dll", InvalidateRect, "InvalidateRect", extInvalidateRect);
if(tmp) pInvalidateRect = (InvalidateRect_Type)tmp;
}
if (dxw.dwFlags1 & CLIENTREMAPPING){
tmp = HookAPI(module, "user32.dll", ScreenToClient, "ScreenToClient", extScreenToClient);
if(tmp) pScreenToClient = (ScreenToClient_Type)tmp;
tmp = HookAPI(module, "user32.dll", ClientToScreen, "ClientToScreen", extClientToScreen);
if(tmp) pClientToScreen = (ClientToScreen_Type)tmp;
tmp = HookAPI(module, "user32.dll", GetClientRect, "GetClientRect", extGetClientRect);
if(tmp) pGetClientRect = (GetClientRect_Type)tmp;
tmp = HookAPI(module, "user32.dll", GetWindowRect, "GetWindowRect", extGetWindowRect);
if(tmp) pGetWindowRect = (GetWindowRect_Type)tmp;
tmp = HookAPI(module, "user32.dll", MapWindowPoints, "MapWindowPoints", extMapWindowPoints);
if(tmp) pMapWindowPoints = (MapWindowPoints_Type)tmp;
}
// get / change display settings
tmp = HookAPI(module, "user32.dll", ChangeDisplaySettingsA, "ChangeDisplaySettingsA", extChangeDisplaySettings);
if(tmp) pChangeDisplaySettings = (ChangeDisplaySettings_Type)tmp;
tmp = HookAPI(module, "user32.dll", ChangeDisplaySettingsExA, "ChangeDisplaySettingsExA", extChangeDisplaySettingsEx);
if(tmp) pChangeDisplaySettingsEx = (ChangeDisplaySettingsEx_Type)tmp;
tmp = HookAPI(module, "user32.dll", EnumDisplaySettingsA, "EnumDisplaySettingsA", extEnumDisplaySettings);
if(tmp) pEnumDisplaySettings = (EnumDisplaySettings_Type)tmp;
// handle cursor clipping
tmp = HookAPI(module, "user32.dll", GetClipCursor, "GetClipCursor", extGetClipCursor);
if(tmp) pGetClipCursor = (GetClipCursor_Type)tmp;
tmp = HookAPI(module, "user32.dll", ClipCursor, "ClipCursor", extClipCursor);
if(tmp) pClipCursor = (ClipCursor_Type)tmp;
tmp = HookAPI(module, "user32.dll", FillRect, "FillRect", extFillRect);
if(tmp) pFillRect = (FillRect_Type)tmp;
if (dxw.dwFlags1 & MESSAGEPROC) {
tmp = HookAPI(module, "user32.dll", PeekMessageA, "PeekMessageA", extPeekMessage); // added for GPL
if(tmp) pPeekMessage = (PeekMessage_Type)tmp;
tmp = HookAPI(module, "user32.dll", GetMessageA, "GetMessageA", extGetMessage); // added for GPL
if(tmp) pGetMessage = (GetMessage_Type)tmp;
}
tmp = HookAPI(module, "user32.dll", DefWindowProcA, "DefWindowProcA", extDefWindowProc); // added for WarWind background erase
if(tmp) pDefWindowProc = (DefWindowProc_Type)tmp;
tmp = HookAPI(module, "user32.dll", CreateWindowExA, "CreateWindowExA", extCreateWindowExA);
if(tmp) pCreateWindowExA = (CreateWindowExA_Type)tmp;
tmp = HookAPI(module, "user32.dll", RegisterClassExA, "RegisterClassExA", extRegisterClassExA);
if(tmp) pRegisterClassExA = (RegisterClassExA_Type)tmp;
if (dxw.dwFlags1 & (PREVENTMAXIMIZE|FIXWINFRAME|LOCKWINPOS|LOCKWINSTYLE)){
tmp = HookAPI(module, "user32.dll", ShowWindow, "ShowWindow", extShowWindow);
if(tmp) pShowWindow = (ShowWindow_Type)tmp;
tmp = HookAPI(module, "user32.dll", SetWindowLongA, "SetWindowLongA", extSetWindowLong);
if(tmp) pSetWindowLong = (SetWindowLong_Type)tmp;
tmp = HookAPI(module, "user32.dll", GetWindowLongA, "GetWindowLongA", extGetWindowLong);
if(tmp) pGetWindowLong = (GetWindowLong_Type)tmp;
tmp = HookAPI(module, "user32.dll", SetWindowPos, "SetWindowPos", extSetWindowPos);
if(tmp) pSetWindowPos = (SetWindowPos_Type)tmp;
tmp = HookAPI(module, "user32.dll", DeferWindowPos, "DeferWindowPos", extDeferWindowPos);
if(tmp) pGDIDeferWindowPos = (DeferWindowPos_Type)tmp;
tmp = HookAPI(module, "user32.dll", CallWindowProcA, "CallWindowProcA", extCallWindowProc);
if(tmp) pCallWindowProc = (CallWindowProc_Type)tmp;
}
tmp = HookAPI(module, "user32.dll", GetSystemMetrics, "GetSystemMetrics", extGetSystemMetrics);
if(tmp) pGetSystemMetrics = (GetSystemMetrics_Type)tmp;
tmp = HookAPI(module, "user32.dll", GetDesktopWindow, "GetDesktopWindow", extGetDesktopWindow);
if(tmp) pGetDesktopWindow = (GetDesktopWindow_Type)tmp;
if(dxw.dwFlags1 & MODIFYMOUSE){
tmp = HookAPI(module, "user32.dll", GetCursorPos, "GetCursorPos", extGetCursorPos);
if(tmp) pGetCursorPos = (GetCursorPos_Type)tmp;
//tmp = HookAPI(module, "user32.dll", GetPhysicalCursorPos, "", extGetCursorPos);
tmp = HookAPI(module, "user32.dll", SetCursor, "SetCursor", extSetCursor);
if(tmp) pSetCursor = (SetCursor_Type)tmp;
//tmp = HookAPI(module, "user32.dll", SetPhysicalCursorPos, "", extSetCursorPos);
tmp = HookAPI(module, "user32.dll", SendMessageA, "SendMessageA", extSendMessage);
if(tmp) pSendMessage = (SendMessage_Type)tmp;
}
if((dxw.dwFlags1 & (MODIFYMOUSE|SLOWDOWN|KEEPCURSORWITHIN)) || (dxw.dwFlags2 & KEEPCURSORFIXED)){
tmp = HookAPI(module, "user32.dll", SetCursorPos, "SetCursorPos", extSetCursorPos);
if(tmp) pSetCursorPos = (SetCursorPos_Type)tmp;
}
tmp = HookAPI(module, "user32.dll", CreateDialogIndirectParamA, "CreateDialogIndirectParamA", extCreateDialogIndirectParam);
if(tmp) pCreateDialogIndirectParam = (CreateDialogIndirectParam_Type)tmp;
tmp = HookAPI(module, "user32.dll", CreateDialogParamA, "CreateDialogParamA", extCreateDialogParam);
if(tmp) pCreateDialogParam = (CreateDialogParam_Type)tmp;
tmp = HookAPI(module, "user32.dll", MoveWindow, "MoveWindow", extMoveWindow);
if(tmp) pMoveWindow = (MoveWindow_Type)tmp;
#define TRAPLOWRESOURCES 0
if(TRAPLOWRESOURCES){
tmp = HookAPI(module, "kernel32.dll", GetDiskFreeSpaceA, "GetDiskFreeSpaceA", extGetDiskFreeSpaceA);
if(tmp) pGetDiskFreeSpaceA = (GetDiskFreeSpaceA_Type)tmp;
}
if(dxw.dwFlags2 & TIMESTRETCH){
tmp = HookAPI(module, "kernel32.dll", GetTickCount, "GetTickCount", extGetTickCount);
if(tmp) pGetTickCount = (GetTickCount_Type)tmp;
tmp = HookAPI(module, "kernel32.dll", GetLocalTime, "GetLocalTime", extGetLocalTime);
if(tmp) pGetLocalTime = (GetLocalTime_Type)tmp;
tmp = HookAPI(module, "kernel32.dll", GetSystemTime, "GetSystemTime", extGetSystemTime);
if(tmp) pGetSystemTime = (GetSystemTime_Type)tmp;
tmp = HookAPI(module, "kernel32.dll", Sleep, "Sleep", extSleep);
if(tmp) pSleep = (Sleep_Type)tmp;
tmp = HookAPI(module, "kernel32.dll", SleepEx, "SleepEx", extSleepEx);
if(tmp) pSleepEx = (SleepEx_Type)tmp;
tmp = HookAPI(module, "user32.dll", SetTimer, "SetTimer", extSetTimer);
if(tmp) pSetTimer = (SetTimer_Type)tmp;
tmp = HookAPI(module, "winmm.dll", NULL, "timeGetTime", exttimeGetTime);
if(tmp) ptimeGetTime = (timeGetTime_Type)tmp;
}
return;
}
static void RecoverScreenMode()
{
DEVMODE InitDevMode;
BOOL res;
EnumDisplaySettings(NULL, ENUM_REGISTRY_SETTINGS, &InitDevMode);
OutTraceD("ChangeDisplaySettings: RECOVER wxh=(%dx%d) BitsPerPel=%d\n",
InitDevMode.dmPelsWidth, InitDevMode.dmPelsHeight, InitDevMode.dmBitsPerPel);
res=(*pChangeDisplaySettings)(&InitDevMode, 0);
if(res) OutTraceE("ChangeDisplaySettings: ERROR err=%d at %d\n", GetLastError(), __LINE__);
}
// to do: find a logic in the exception codes (0xc0000095 impies a bitmask ?)
// idem for ExceptionFlags
// generalize, find OPCODE length and set number of NOPs accordingly!
LONG WINAPI myUnhandledExceptionFilter(LPEXCEPTION_POINTERS ExceptionInfo)
{
OutTrace("UnhandledExceptionFilter: exception code=%x at=%x\n",
ExceptionInfo->ExceptionRecord->ExceptionCode,
ExceptionInfo->ExceptionRecord->ExceptionAddress);
DWORD oldprot;
PVOID target = ExceptionInfo->ExceptionRecord->ExceptionAddress;
switch(ExceptionInfo->ExceptionRecord->ExceptionCode){
case 0xc0000094: // ???
if(!VirtualProtect(target, 4, PAGE_READWRITE, &oldprot)) return EXCEPTION_CONTINUE_SEARCH; // error condition
//if (*(char *)target==0xF7) // ????
*(USHORT *)target = (USHORT)0x9090; // IDIV reg -> NOP, NOP (Ultim@te Race Pro)
VirtualProtect(target, 4, oldprot, &oldprot);
return EXCEPTION_CONTINUE_EXECUTION;
break;
case 0xc0000095: // DIV by 0 (divide overflow) exception
if(!VirtualProtect(target, 4, PAGE_READWRITE, &oldprot)) return EXCEPTION_CONTINUE_SEARCH; // error condition
//if (*(char *)target==0xF7) // ????
*(USHORT *)target = (USHORT)0x9090; // IDIV reg -> NOP, NOP (SonicR)
VirtualProtect(target, 4, oldprot, &oldprot);
return EXCEPTION_CONTINUE_EXECUTION;
break;
case 0xc0000096: // Priviliged instruction exception
if(!VirtualProtect(target, 4, PAGE_READWRITE, &oldprot)) return EXCEPTION_CONTINUE_SEARCH; // error condition
//if (*(char *)target==0xFA) // ????
*(char *)target = (char)0x90; // CLI -> NOP (Resident Evil)
VirtualProtect(target, 4, oldprot, &oldprot);
return EXCEPTION_CONTINUE_EXECUTION;
break;
case 0xc000001d: // eXpendable (instruction FEMMS)
if(!VirtualProtect(target, 4, PAGE_READWRITE, &oldprot)) return EXCEPTION_CONTINUE_SEARCH; // error condition
*(USHORT *)target = (USHORT)0x9090; // FEMMS -> NOP, NOP (eXpendable)
VirtualProtect(target, 4, oldprot, &oldprot);
return EXCEPTION_CONTINUE_EXECUTION;
break;
default:
return EXCEPTION_CONTINUE_SEARCH;
}
}
void HookExceptionHandler(void)
{
void *tmp;
OutTraceD("Set exception handlers\n");
pSetUnhandledExceptionFilter = SetUnhandledExceptionFilter;
//v2.1.75 override default exception handler, if any....
LONG WINAPI myUnhandledExceptionFilter(LPEXCEPTION_POINTERS);
tmp = HookAPI(NULL, "KERNEL32.dll", UnhandledExceptionFilter, "UnhandledExceptionFilter", myUnhandledExceptionFilter);
// so far, no need to save the previous handler.
//if(tmp) pUnhandledExceptionFilter = (UnhandledExceptionFilter_Type)tmp;
tmp = HookAPI(NULL, "KERNEL32.dll", SetUnhandledExceptionFilter, "SetUnhandledExceptionFilter", extSetUnhandledExceptionFilter);
//tmp = HookAPI("KERNEL32.dll", SetUnhandledExceptionFilter, "SetUnhandledExceptionFilter", myUnhandledExceptionFilter);
if(tmp) pSetUnhandledExceptionFilter = (SetUnhandledExceptionFilter_Type)tmp;
SetErrorMode(SEM_NOGPFAULTERRORBOX|SEM_NOOPENFILEERRORBOX|SEM_FAILCRITICALERRORS);
(*pSetUnhandledExceptionFilter)((LPTOP_LEVEL_EXCEPTION_FILTER)myUnhandledExceptionFilter);
//(*pSetUnhandledExceptionFilter)(NULL);
}
void HookModule(char *module, int dxversion)
{
HookSysLibs(module);
if(dxw.dwFlags2 & HOOKGDI) HookGDILib(module);
if(dxw.dwFlags1 & HOOKDI) HookDirectInput(module, dxversion);
HookDirectDraw(module, dxversion);
HookDirect3D(module, dxversion);
HookOle32(module, dxversion); // unfinished business
if(dxw.dwFlags2 & HOOKOPENGL) HookOpenGLLibs(module, dxw.CustomOpenGLLib);
}
int HookInit(TARGETMAP *target, HWND hwnd)
{
BOOL res;
WINDOWPOS wp;
char *sModule;
static char *dxversions[14]={
"Automatic", "DirectX1~6", "", "", "", "", "",
"DirectX7", "DirectX8", "DirectX9", "None\\OpenGL", "", "", ""
};
dxw.InitTarget(target);
// v2.1.75: is it correct to set hWnd here?
dxw.SethWnd(hwnd);
dxw.hParentWnd=GetParent(hwnd);
dxw.hChildWnd=hwnd;
OutTraceD("HookInit: path=\"%s\" module=\"%s\" dxversion=%s hWnd=%x dxw.hParentWnd=%x\n",
target->path, target->module, dxversions[dxw.dwTargetDDVersion], hwnd, dxw.hParentWnd);
if (IsDebug){
DWORD dwStyle, dwExStyle;
dwStyle=GetWindowLong(dxw.GethWnd(), GWL_STYLE);
dwExStyle=GetWindowLong(dxw.GethWnd(), GWL_EXSTYLE);
OutTrace("HookInit: hWnd style=%x(%s) exstyle=%x(%s)\n", dwStyle, ExplainStyle(dwStyle), dwExStyle, ExplainExStyle(dwExStyle));
dwStyle=GetWindowLong(dxw.hParentWnd, GWL_STYLE);
dwExStyle=GetWindowLong(dxw.hParentWnd, GWL_EXSTYLE);
OutTrace("HookInit: dxw.hParentWnd style=%x(%s) exstyle=%x(%s)\n", dwStyle, ExplainStyle(dwStyle), dwExStyle, ExplainExStyle(dwExStyle));
}
if(dxw.dwFlags1 & HANDLEEXCEPTIONS) HookExceptionHandler();
if (dxw.dwTFlags & OUTIMPORTTABLE) DumpImportTable(NULL);
if (dxw.dwTFlags & DXPROXED){
HookDDProxy(NULL, dxw.dwTargetDDVersion);
return 0;
}
// make InitPosition used for both DInput and DDraw
InitPosition(target->initx, target->inity,
target->minx, target->miny, target->maxx, target->maxy);
dxw.InitWindowPos(target->posx, target->posy, target->sizx, target->sizy);
HookSysLibsInit(); // this just once...
HookModule(NULL, dxw.dwTargetDDVersion);
sModule=strtok(dxw.gsModules," ");
while (sModule) {
OutTraceD("HookInit: hooking additional module=%s\n", sModule);
if (dxw.dwTFlags & OUTIMPORTTABLE) DumpImportTable(sModule);
HookModule(sModule, dxw.dwTargetDDVersion);
sModule=strtok(NULL," ");
}
if(dxw.dwFlags2 & RECOVERSCREENMODE) RecoverScreenMode();
InitScreenParameters();
if (IsDebug) OutTraceD("MoveWindow: target pos=(%d,%d) size=(%d,%d)\n", dxw.iPosX, dxw.iPosX, dxw.iSizX, dxw.iSizY);
if(dxw.dwFlags1 & FIXPARENTWIN){
CalculateWindowPos(hwnd, dxw.iSizX, dxw.iSizY, &wp);
if (IsDebug) OutTraceD("MoveWindow: dxw.hParentWnd=%x pos=(%d,%d) size=(%d,%d)\n", dxw.hParentWnd, wp.x, wp.y, wp.cx, wp.cy);
res=(*pMoveWindow)(dxw.hParentWnd, wp.x, wp.y, wp.cx, wp.cy, FALSE);
if(!res) OutTraceE("MoveWindow ERROR: dxw.hParentWnd=%x err=%d at %d\n", dxw.hParentWnd, GetLastError(), __LINE__);
}
return 0;
}
HWND WINAPI extGetDesktopWindow(void)
{
// V2.1.73: correct ???
HWND res;
OutTraceD("GetDesktopWindow: FullScreen=%x\n", dxw.IsFullScreen());
if (dxw.IsFullScreen()){
OutTraceD("GetDesktopWindow: returning main window hwnd=%x\n", dxw.GethWnd());
return dxw.GethWnd();
}
else{
res=(*pGetDesktopWindow)();
OutTraceD("GetDesktopWindow: returning desktop window hwnd=%x\n", res);
return res;
}
}
LPCSTR ProcToString(LPCSTR proc)
{
static char sBuf[24+1];
if(((DWORD)proc & 0xFFFF0000) == 0){
sprintf_s(sBuf, 24, "#0x%x", proc);
return sBuf;
}
else
return proc;
}
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