bool GetSkin ()
{
struct shmem sh;
SkinStruct * pSkin = (SkinStruct *)GetSharedMem(&sh);
if (NULL == pSkin)
return false;
copy_skin(pSkin);
ReleaseSharedMem(&sh);
return true;
}
EXTERN_C BOOL WINAPI
DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpReserved)
{
const char *szNewDllName = NULL;
const char *szNewDllBaseName;
switch (fdwReason) {
case DLL_PROCESS_ATTACH:
if (VERBOSITY > 0) {
debugPrintf("inject: DLL_PROCESS_ATTACH\n");
}
g_hThisModule = hinstDLL;
if (VERBOSITY > 0) {
char szProcess[MAX_PATH];
GetModuleFileNameA(NULL, szProcess, sizeof szProcess);
debugPrintf("inject: attached to process %s\n", szProcess);
}
/*
* Calling LoadLibrary inside DllMain is strongly discouraged. But it
* works quite well, provided that the loaded DLL does not require or do
* anything special in its DllMain, which seems to be the general case.
*
* See also:
* - http://stackoverflow.com/questions/4370812/calling-loadlibrary-from-dllmain
* - http://msdn.microsoft.com/en-us/library/ms682583
*/
if (!USE_SHARED_MEM) {
szNewDllName = getenv("INJECT_DLL");
if (!szNewDllName) {
debugPrintf("inject: warning: INJECT_DLL not set\n");
return FALSE;
}
} else {
static char szSharedMemCopy[MAX_PATH];
GetSharedMem(szSharedMemCopy, sizeof szSharedMemCopy);
szNewDllName = szSharedMemCopy;
}
if (VERBOSITY > 0) {
debugPrintf("inject: loading %s\n", szNewDllName);
}
g_hHookModule = LoadLibraryA(szNewDllName);
if (!g_hHookModule) {
debugPrintf("inject: warning: failed to load %s\n", szNewDllName);
return FALSE;
}
/*
* Hook kernel32.dll functions, and its respective Windows API Set.
*
* http://msdn.microsoft.com/en-us/library/dn505783.aspx (Windows 8.1)
* http://msdn.microsoft.com/en-us/library/hh802935.aspx (Windows 8)
*/
registerLibraryLoaderHooks("kernel32.dll");
registerLibraryLoaderHooks("api-ms-win-core-libraryloader-l1-1-0.dll");
registerLibraryLoaderHooks("api-ms-win-core-libraryloader-l1-1-1.dll");
registerLibraryLoaderHooks("api-ms-win-core-libraryloader-l1-2-0.dll");
registerLibraryLoaderHooks("api-ms-win-core-kernel32-legacy-l1-1-0.dll");
registerLibraryLoaderHooks("api-ms-win-core-kernel32-legacy-l1-1-1.dll");
registerProcessThreadsHooks("kernel32.dll");
registerProcessThreadsHooks("api-ms-win-core-processthreads-l1-1-0.dll");
registerProcessThreadsHooks("api-ms-win-core-processthreads-l1-1-1.dll");
registerProcessThreadsHooks("api-ms-win-core-processthreads-l1-1-2.dll");
szNewDllBaseName = getBaseName(szNewDllName);
if (stricmp(szNewDllBaseName, "dxgitrace.dll") == 0) {
registerModuleHooks("dxgi.dll", g_hHookModule);
registerModuleHooks("d3d10.dll", g_hHookModule);
registerModuleHooks("d3d10_1.dll", g_hHookModule);
registerModuleHooks("d3d11.dll", g_hHookModule);
registerModuleHooks("d3d9.dll", g_hHookModule); // for D3DPERF_*
} else if (stricmp(szNewDllBaseName, "d2d1trace.dll") == 0) {
registerModuleHooks("d2d1.dll", g_hHookModule);
registerModuleHooks("dwrite.dll", g_hHookModule);
} else {
registerModuleHooks(szNewDllBaseName, g_hHookModule);
}
dumpRegisteredHooks();
patchAllModules(ACTION_HOOK);
break;
case DLL_THREAD_ATTACH:
break;
case DLL_THREAD_DETACH:
break;
case DLL_PROCESS_DETACH:
if (VERBOSITY > 0) {
debugPrintf("inject: DLL_PROCESS_DETACH\n");
}
patchAllModules(ACTION_UNHOOK);
if (g_hHookModule) {
FreeLibrary(g_hHookModule);
}
break;
}
return TRUE;
}
EXTERN_C BOOL WINAPI
DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpReserved)
{
const char *szNewDllName = NULL;
HMODULE hNewModule = NULL;
const char *szNewDllBaseName;
switch (fdwReason) {
case DLL_PROCESS_ATTACH:
if (VERBOSITY > 0) {
debugPrintf("DLL_PROCESS_ATTACH\n");
}
g_hThisModule = hinstDLL;
{
char szProcess[MAX_PATH];
GetModuleFileNameA(NULL, szProcess, sizeof szProcess);
if (VERBOSITY > 0) {
debugPrintf(" attached to %s\n", szProcess);
}
}
/*
* Calling LoadLibrary inside DllMain is strongly discouraged. But it
* works quite well, provided that the loaded DLL does not require or do
* anything special in its DllMain, which seems to be the general case.
*
* See also:
* - http://stackoverflow.com/questions/4370812/calling-loadlibrary-from-dllmain
* - http://msdn.microsoft.com/en-us/library/ms682583
*/
if (!USE_SHARED_MEM) {
szNewDllName = getenv("INJECT_DLL");
if (!szNewDllName) {
debugPrintf("warning: INJECT_DLL not set\n");
return FALSE;
}
} else {
static char szSharedMemCopy[MAX_PATH];
GetSharedMem(szSharedMemCopy, sizeof szSharedMemCopy);
szNewDllName = szSharedMemCopy;
}
if (VERBOSITY > 0) {
debugPrintf(" injecting %s\n", szNewDllName);
}
hNewModule = LoadLibraryA(szNewDllName);
if (!hNewModule) {
debugPrintf("warning: failed to load %s\n", szNewDllName);
return FALSE;
}
szNewDllBaseName = getBaseName(szNewDllName);
if (stricmp(szNewDllBaseName, "dxgitrace.dll") == 0) {
replacements[numReplacements].szMatchModule = "dxgi.dll";
replacements[numReplacements].hReplaceModule = hNewModule;
++numReplacements;
replacements[numReplacements].szMatchModule = "d3d10.dll";
replacements[numReplacements].hReplaceModule = hNewModule;
++numReplacements;
replacements[numReplacements].szMatchModule = "d3d10_1.dll";
replacements[numReplacements].hReplaceModule = hNewModule;
++numReplacements;
replacements[numReplacements].szMatchModule = "d3d11.dll";
replacements[numReplacements].hReplaceModule = hNewModule;
++numReplacements;
} else {
replacements[numReplacements].szMatchModule = szNewDllBaseName;
replacements[numReplacements].hReplaceModule = hNewModule;
++numReplacements;
}
hookAllModules();
break;
case DLL_THREAD_ATTACH:
break;
case DLL_THREAD_DETACH:
break;
case DLL_PROCESS_DETACH:
if (VERBOSITY > 0) {
debugPrintf("DLL_PROCESS_DETACH\n");
}
break;
}
return TRUE;
}
//===========================================================================
int HookWindow (HWND hwnd, int early)
{
LONG_PTR lStyle = GetWindowLongPtr(hwnd, GWL_STYLE);
// if it does not have a caption, there is nothing to skin.
if (WS_CAPTION != (lStyle & WS_CAPTION))
{
//send_log(hwnd, "no caption");
return 0;
}
LONG_PTR lExStyle = GetWindowLongPtr(hwnd, GWL_EXSTYLE);
// child windows are excluded unless they have a sysmenu or are MDI clients
if ((lStyle & WS_CHILD)
&& false == (lStyle & WS_SYSMENU)
&& false == (WS_EX_MDICHILD & lExStyle)
)
{
//send_log(hwnd, "child, no sysmenu, not a MDI");
return 0;
}
// if it is already hooked, dont fall into loop
if (get_WinInfo(hwnd))
{
//send_log(hwnd, "already hooked");
return 0;
}
// being skeptical about windows without sysmenu
if (false == (lStyle & WS_SYSMENU) && false == (lStyle & WS_VISIBLE))
{
//if (0 == early) send_log(hwnd, "invisible without sysmenu");
return early;
}
// check for something like a vertical titlebar, erm...
if (lExStyle & WS_EX_TOOLWINDOW)
{
RECT rc; GetWindowRect(hwnd, &rc);
ScreenToClient(hwnd, (LPPOINT)&rc.left);
if (rc.top > -10)
{
//if (0 == early) send_log(hwnd, "abnormal caption");
return early;
}
}
// ------------------------------------------------------
// now check the exclusion list
int found = 0;
struct shmem sh;
SkinStruct *pSkin = (SkinStruct *)GetSharedMem(&sh);
if (NULL == pSkin)
return 0;
copy_skin(pSkin);
char sClassName[200]; sClassName[0] = 0;
GetClassName(hwnd, sClassName, sizeof sClassName);
char sFileName[200]; sFileName[0] = 0;
get_module(hwnd, sFileName, sizeof sFileName);
struct exclusion_item *ei = pSkin->exInfo.ei;
for (int i = pSkin->exInfo.count; i; --i)
{
char *f, *c = (f = ei->buff) + ei->flen;
// if filename matches and if class matches or is empty...
bool r = match(sFileName, f) && (0 == *c || match(sClassName, c));
//dbg_printf("check [%d,%d] %s:%s", r, ei->option, f, c);
if (r)
{
found = 1 == ei->option ? -1 : 1; // check 'hook-early' option
break;
}
ei = (struct exclusion_item *)(c + ei->clen);
}
ReleaseSharedMem(&sh);
// ------------------------------------------------------
if (early && 0 == found)
{
//send_log(hwnd, "Checking later:");
return 1;
}
// send message to log_window
if (mSkin.enableLog)
{
char msg[100];
sprintf_s(msg, 100, "%s%s",
found > 0 ? "Excluded" : early ? "Hooked early" : "Hooked",
IsWindowVisible(hwnd) ? "" : " invisible");
send_log(hwnd, msg);
}
// return when excluded;
if (found > 0)
return 0;
// skin it.
subclass_window(hwnd);
return 2;
}