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graphics-hook.c
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graphics-hook.c
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#include <windows.h>
#include <psapi.h>
#include <inttypes.h>
#include "graphics-hook.h"
#ifdef OBS_LEGACY
#include "../graphics-hook-ver.h"
#include "../../libobs/util/windows/obfuscate.h"
#else
#include <graphics-hook-ver.h>
#include <util/windows/obfuscate.h>
#endif
#define DEBUG_OUTPUT
#ifdef DEBUG_OUTPUT
#define DbgOut(x) OutputDebugStringA(x)
#else
#define DbgOut(x)
#endif
struct thread_data {
CRITICAL_SECTION mutexes[NUM_BUFFERS];
CRITICAL_SECTION data_mutex;
void *volatile cur_data;
uint8_t *shmem_textures[2];
HANDLE copy_thread;
HANDLE copy_event;
HANDLE stop_event;
volatile int cur_tex;
unsigned int pitch;
unsigned int cy;
volatile bool locked_textures[NUM_BUFFERS];
};
ipc_pipe_client_t pipe = {0};
HANDLE signal_restart = NULL;
HANDLE signal_stop = NULL;
HANDLE signal_ready = NULL;
HANDLE signal_exit = NULL;
static HANDLE signal_init = NULL;
HANDLE tex_mutexes[2] = {NULL, NULL};
static HANDLE filemap_hook_info = NULL;
static HINSTANCE dll_inst = NULL;
static volatile bool stop_loop = false;
static HANDLE dup_hook_mutex = NULL;
static HANDLE capture_thread = NULL;
char system_path[MAX_PATH] = {0};
char process_name[MAX_PATH] = {0};
wchar_t keepalive_name[64] = {0};
HWND dummy_window = NULL;
static unsigned int shmem_id_counter = 0;
static void *shmem_info = NULL;
static HANDLE shmem_file_handle = 0;
static struct thread_data thread_data = {0};
volatile bool active = false;
struct hook_info *global_hook_info = NULL;
static inline void wait_for_dll_main_finish(HANDLE thread_handle)
{
if (thread_handle) {
WaitForSingleObject(thread_handle, 100);
CloseHandle(thread_handle);
}
}
bool init_pipe(void)
{
char new_name[64];
snprintf(new_name, sizeof(new_name), "%s%lu", PIPE_NAME, GetCurrentProcessId());
const bool success = ipc_pipe_client_open(&pipe, new_name);
if (!success) {
DbgOut("[OBS] Failed to open pipe\n");
}
return success;
}
static HANDLE init_event(const wchar_t *name, DWORD pid)
{
HANDLE handle = create_event_plus_id(name, pid);
if (!handle)
hlog("Failed to get event '%s': %lu", name, GetLastError());
return handle;
}
static HANDLE init_mutex(const wchar_t *name, DWORD pid)
{
HANDLE handle = create_mutex_plus_id(name, pid);
if (!handle)
hlog("Failed to open mutex '%s': %lu", name, GetLastError());
return handle;
}
static inline bool init_signals(void)
{
DWORD pid = GetCurrentProcessId();
signal_restart = init_event(EVENT_CAPTURE_RESTART, pid);
if (!signal_restart) {
return false;
}
signal_stop = init_event(EVENT_CAPTURE_STOP, pid);
if (!signal_stop) {
return false;
}
signal_ready = init_event(EVENT_HOOK_READY, pid);
if (!signal_ready) {
return false;
}
signal_exit = init_event(EVENT_HOOK_EXIT, pid);
if (!signal_exit) {
return false;
}
signal_init = init_event(EVENT_HOOK_INIT, pid);
if (!signal_init) {
return false;
}
return true;
}
static inline bool init_mutexes(void)
{
DWORD pid = GetCurrentProcessId();
tex_mutexes[0] = init_mutex(MUTEX_TEXTURE1, pid);
if (!tex_mutexes[0]) {
return false;
}
tex_mutexes[1] = init_mutex(MUTEX_TEXTURE2, pid);
if (!tex_mutexes[1]) {
return false;
}
return true;
}
static inline bool init_system_path(void)
{
UINT ret = GetSystemDirectoryA(system_path, MAX_PATH);
if (!ret) {
hlog("Failed to get windows system path: %lu", GetLastError());
return false;
}
return true;
}
static inline void log_current_process(void)
{
DWORD len = GetModuleBaseNameA(GetCurrentProcess(), NULL, process_name, MAX_PATH);
if (len > 0) {
process_name[len] = 0;
hlog("graphics-hook.dll loaded against process: %s", process_name);
} else {
hlog("graphics-hook.dll loaded");
}
hlog("(half life scientist) everything.. seems to be in order");
}
static inline bool init_hook_info(void)
{
filemap_hook_info = create_hook_info(GetCurrentProcessId());
if (!filemap_hook_info) {
hlog("Failed to create hook info file mapping: %lu", GetLastError());
return false;
}
global_hook_info = MapViewOfFile(filemap_hook_info, FILE_MAP_ALL_ACCESS, 0, 0, sizeof(struct hook_info));
if (!global_hook_info) {
hlog("Failed to map the hook info file mapping: %lu", GetLastError());
return false;
}
return true;
}
#define DEF_FLAGS (WS_POPUP | WS_CLIPCHILDREN | WS_CLIPSIBLINGS)
static DWORD WINAPI dummy_window_thread(LPVOID *unused)
{
static const wchar_t dummy_window_class[] = L"temp_d3d_window_4039785";
WNDCLASSW wc;
MSG msg;
memset(&wc, 0, sizeof(wc));
wc.style = CS_OWNDC;
wc.hInstance = dll_inst;
wc.lpfnWndProc = (WNDPROC)DefWindowProc;
wc.lpszClassName = dummy_window_class;
if (!RegisterClass(&wc)) {
hlog("Failed to create temp D3D window class: %lu", GetLastError());
return 0;
}
dummy_window = CreateWindowExW(0, dummy_window_class, L"Temp Window", DEF_FLAGS, 0, 0, 1, 1, NULL, NULL,
dll_inst, NULL);
if (!dummy_window) {
hlog("Failed to create temp D3D window: %lu", GetLastError());
return 0;
}
while (GetMessage(&msg, NULL, 0, 0)) {
TranslateMessage(&msg);
DispatchMessage(&msg);
}
(void)unused;
return 0;
}
static inline void init_dummy_window_thread(void)
{
HANDLE thread = CreateThread(NULL, 0, dummy_window_thread, NULL, 0, NULL);
if (!thread) {
hlog("Failed to create temp D3D window thread: %lu", GetLastError());
return;
}
CloseHandle(thread);
}
static inline bool init_hook(HANDLE thread_handle)
{
wait_for_dll_main_finish(thread_handle);
_snwprintf(keepalive_name, sizeof(keepalive_name) / sizeof(wchar_t), L"%s%lu", WINDOW_HOOK_KEEPALIVE,
GetCurrentProcessId());
init_dummy_window_thread();
log_current_process();
SetEvent(signal_restart);
return true;
}
static inline void close_handle(HANDLE *handle)
{
if (*handle) {
CloseHandle(*handle);
*handle = NULL;
}
}
static void free_hook(void)
{
if (filemap_hook_info) {
CloseHandle(filemap_hook_info);
filemap_hook_info = NULL;
}
if (global_hook_info) {
UnmapViewOfFile(global_hook_info);
global_hook_info = NULL;
}
close_handle(&tex_mutexes[1]);
close_handle(&tex_mutexes[0]);
close_handle(&signal_exit);
close_handle(&signal_ready);
close_handle(&signal_stop);
close_handle(&signal_restart);
close_handle(&dup_hook_mutex);
ipc_pipe_client_free(&pipe);
}
static inline bool d3d8_hookable(void)
{
return !!global_hook_info->offsets.d3d8.present;
}
static inline bool ddraw_hookable(void)
{
return !!global_hook_info->offsets.ddraw.surface_create && !!global_hook_info->offsets.ddraw.surface_restore &&
!!global_hook_info->offsets.ddraw.surface_release && !!global_hook_info->offsets.ddraw.surface_unlock &&
!!global_hook_info->offsets.ddraw.surface_blt && !!global_hook_info->offsets.ddraw.surface_flip &&
!!global_hook_info->offsets.ddraw.surface_set_palette &&
!!global_hook_info->offsets.ddraw.palette_set_entries;
}
static inline bool d3d9_hookable(void)
{
return !!global_hook_info->offsets.d3d9.present && !!global_hook_info->offsets.d3d9.present_ex &&
!!global_hook_info->offsets.d3d9.present_swap;
}
static inline bool dxgi_hookable(void)
{
return !!global_hook_info->offsets.dxgi.present && !!global_hook_info->offsets.dxgi.resize;
}
static inline bool attempt_hook(void)
{
//static bool ddraw_hooked = false;
static bool d3d8_hooked = false;
static bool d3d9_hooked = false;
static bool d3d12_hooked = false;
static bool dxgi_hooked = false;
static bool gl_hooked = false;
#ifdef COMPILE_VULKAN_HOOK
static bool vulkan_hooked = false;
if (!vulkan_hooked) {
vulkan_hooked = hook_vulkan();
if (vulkan_hooked) {
return true;
}
}
#endif //COMPILE_VULKAN_HOOK
#ifdef COMPILE_D3D12_HOOK
if (!d3d12_hooked) {
d3d12_hooked = hook_d3d12();
}
#endif
if (!d3d9_hooked) {
if (!d3d9_hookable()) {
DbgOut("[OBS] no D3D9 hook address found!\n");
d3d9_hooked = true;
} else {
d3d9_hooked = hook_d3d9();
if (d3d9_hooked) {
return true;
}
}
}
if (!dxgi_hooked) {
if (!dxgi_hookable()) {
DbgOut("[OBS] no DXGI hook address found!\n");
dxgi_hooked = true;
} else {
dxgi_hooked = hook_dxgi();
if (dxgi_hooked) {
return true;
}
}
}
if (!gl_hooked) {
gl_hooked = hook_gl();
if (gl_hooked) {
return true;
}
/*} else {
rehook_gl();*/
}
if (!d3d8_hooked) {
if (!d3d8_hookable()) {
d3d8_hooked = true;
} else {
d3d8_hooked = hook_d3d8();
if (d3d8_hooked) {
return true;
}
}
}
/*if (!ddraw_hooked) {
if (!ddraw_hookable()) {
ddraw_hooked = true;
} else {
ddraw_hooked = hook_ddraw();
if (ddraw_hooked) {
return true;
}
}
}*/
#if HOOK_VERBOSE_LOGGING
DbgOut("[OBS] Attempt hook: D3D8=");
DbgOut(d3d8_hooked ? "1" : "0");
DbgOut(", D3D9=");
DbgOut(d3d9_hooked ? "1" : "0");
DbgOut(", D3D12=");
DbgOut(d3d12_hooked ? "1" : "0");
DbgOut(", DXGI=");
DbgOut(dxgi_hooked ? "1" : "0");
DbgOut(", GL=");
DbgOut(gl_hooked ? "1" : "0");
#if COMPILE_VULKAN_HOOK
DbgOut(", VK=");
DbgOut(vulkan_hooked ? "1" : "0");
#endif
DbgOut("\n");
#endif
return false;
}
static inline void capture_loop(void)
{
WaitForSingleObject(signal_init, INFINITE);
while (!attempt_hook())
Sleep(40);
for (size_t n = 0; !stop_loop; n++) {
/* this causes it to check every 4 seconds, but still with
* a small sleep interval in case the thread needs to stop */
if (n % 100 == 0)
attempt_hook();
Sleep(40);
}
}
static DWORD WINAPI main_capture_thread(HANDLE thread_handle)
{
if (!init_hook(thread_handle)) {
DbgOut("[OBS] Failed to init hook\n");
free_hook();
return 0;
}
capture_loop();
return 0;
}
static inline void hlogv(const char *format, va_list args)
{
char message[1024] = "";
int num = _vsprintf_p(message, 1024, format, args);
if (num > 0) {
if (!ipc_pipe_client_write(&pipe, message, (size_t)num + 1)) {
ipc_pipe_client_free(&pipe);
}
DbgOut("[OBS] ");
DbgOut(message);
DbgOut("\n");
}
}
void hlog(const char *format, ...)
{
va_list args;
va_start(args, format);
hlogv(format, args);
va_end(args);
}
void hlog_hr(const char *text, HRESULT hr)
{
LPSTR buffer = NULL;
FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_IGNORE_INSERTS,
NULL, hr, MAKELANGID(LANG_ENGLISH, SUBLANG_ENGLISH_US), (LPSTR)&buffer, 0, NULL);
if (buffer) {
hlog("%s (0x%08lX): %s", text, hr, buffer);
LocalFree(buffer);
} else {
hlog("%s (0x%08lX)", text, hr);
}
}
static inline uint64_t get_clockfreq(void)
{
static bool have_clockfreq = false;
static LARGE_INTEGER clock_freq;
if (!have_clockfreq) {
QueryPerformanceFrequency(&clock_freq);
have_clockfreq = true;
}
return clock_freq.QuadPart;
}
uint64_t os_gettime_ns(void)
{
LARGE_INTEGER current_time;
double time_val;
QueryPerformanceCounter(¤t_time);
time_val = (double)current_time.QuadPart;
time_val *= 1000000000.0;
time_val /= (double)get_clockfreq();
return (uint64_t)time_val;
}
static inline int try_lock_shmem_tex(int id)
{
int next = id == 0 ? 1 : 0;
DWORD wait_result = WAIT_FAILED;
wait_result = WaitForSingleObject(tex_mutexes[id], 0);
if (wait_result == WAIT_OBJECT_0 || wait_result == WAIT_ABANDONED) {
return id;
}
wait_result = WaitForSingleObject(tex_mutexes[next], 0);
if (wait_result == WAIT_OBJECT_0 || wait_result == WAIT_ABANDONED) {
return next;
}
return -1;
}
static inline void unlock_shmem_tex(int id)
{
if (id != -1) {
ReleaseMutex(tex_mutexes[id]);
}
}
static inline bool init_shared_info(size_t size, HWND window)
{
wchar_t name[64];
HWND top = GetAncestor(window, GA_ROOT);
swprintf(name, 64, SHMEM_TEXTURE "_%" PRIu64 "_%u", (uint64_t)(uintptr_t)top, ++shmem_id_counter);
shmem_file_handle = CreateFileMappingW(INVALID_HANDLE_VALUE, NULL, PAGE_READWRITE, 0, (DWORD)size, name);
if (!shmem_file_handle) {
hlog("init_shared_info: Failed to create shared memory: %d", GetLastError());
return false;
}
shmem_info = MapViewOfFile(shmem_file_handle, FILE_MAP_ALL_ACCESS, 0, 0, size);
if (!shmem_info) {
hlog("init_shared_info: Failed to map shared memory: %d", GetLastError());
return false;
}
return true;
}
bool capture_init_shtex(struct shtex_data **data, HWND window, uint32_t cx, uint32_t cy, uint32_t format, bool flip,
uintptr_t handle)
{
if (!init_shared_info(sizeof(struct shtex_data), window)) {
hlog("capture_init_shtex: Failed to initialize memory");
return false;
}
*data = shmem_info;
(*data)->tex_handle = (uint32_t)handle;
global_hook_info->hook_ver_major = HOOK_VER_MAJOR;
global_hook_info->hook_ver_minor = HOOK_VER_MINOR;
global_hook_info->window = (uint32_t)(uintptr_t)window;
global_hook_info->type = CAPTURE_TYPE_TEXTURE;
global_hook_info->format = format;
global_hook_info->flip = flip;
global_hook_info->map_id = shmem_id_counter;
global_hook_info->map_size = sizeof(struct shtex_data);
global_hook_info->cx = cx;
global_hook_info->cy = cy;
global_hook_info->UNUSED_base_cx = cx;
global_hook_info->UNUSED_base_cy = cy;
if (!SetEvent(signal_ready)) {
hlog("capture_init_shtex: Failed to signal ready: %d", GetLastError());
return false;
}
active = true;
return true;
}
static DWORD CALLBACK copy_thread(LPVOID unused)
{
uint32_t pitch = thread_data.pitch;
uint32_t cy = thread_data.cy;
HANDLE events[2] = {NULL, NULL};
int shmem_id = 0;
if (!duplicate_handle(&events[0], thread_data.copy_event)) {
hlog_hr("copy_thread: Failed to duplicate copy event: %d", GetLastError());
return 0;
}
if (!duplicate_handle(&events[1], thread_data.stop_event)) {
hlog_hr("copy_thread: Failed to duplicate stop event: %d", GetLastError());
goto finish;
}
for (;;) {
int copy_tex;
void *cur_data;
DWORD ret = WaitForMultipleObjects(2, events, false, INFINITE);
if (ret != WAIT_OBJECT_0) {
break;
}
EnterCriticalSection(&thread_data.data_mutex);
copy_tex = thread_data.cur_tex;
cur_data = thread_data.cur_data;
LeaveCriticalSection(&thread_data.data_mutex);
if (copy_tex < NUM_BUFFERS && !!cur_data) {
EnterCriticalSection(&thread_data.mutexes[copy_tex]);
int lock_id = try_lock_shmem_tex(shmem_id);
if (lock_id != -1) {
memcpy(thread_data.shmem_textures[lock_id], cur_data, (size_t)pitch * (size_t)cy);
unlock_shmem_tex(lock_id);
((struct shmem_data *)shmem_info)->last_tex = lock_id;
shmem_id = lock_id == 0 ? 1 : 0;
}
LeaveCriticalSection(&thread_data.mutexes[copy_tex]);
}
}
finish:
for (size_t i = 0; i < 2; i++) {
if (events[i]) {
CloseHandle(events[i]);
}
}
(void)unused;
return 0;
}
void shmem_copy_data(size_t idx, void *volatile data)
{
EnterCriticalSection(&thread_data.data_mutex);
thread_data.cur_tex = (int)idx;
thread_data.cur_data = data;
thread_data.locked_textures[idx] = true;
LeaveCriticalSection(&thread_data.data_mutex);
SetEvent(thread_data.copy_event);
}
bool shmem_texture_data_lock(int idx)
{
bool locked;
EnterCriticalSection(&thread_data.data_mutex);
locked = thread_data.locked_textures[idx];
LeaveCriticalSection(&thread_data.data_mutex);
if (locked) {
EnterCriticalSection(&thread_data.mutexes[idx]);
return true;
}
return false;
}
void shmem_texture_data_unlock(int idx)
{
EnterCriticalSection(&thread_data.data_mutex);
thread_data.locked_textures[idx] = false;
LeaveCriticalSection(&thread_data.data_mutex);
LeaveCriticalSection(&thread_data.mutexes[idx]);
}
static inline bool init_shmem_thread(uint32_t pitch, uint32_t cy)
{
struct shmem_data *data = shmem_info;
thread_data.pitch = pitch;
thread_data.cy = cy;
thread_data.shmem_textures[0] = (uint8_t *)data + data->tex1_offset;
thread_data.shmem_textures[1] = (uint8_t *)data + data->tex2_offset;
thread_data.copy_event = CreateEvent(NULL, false, false, NULL);
if (!thread_data.copy_event) {
hlog("init_shmem_thread: Failed to create copy event: %d", GetLastError());
return false;
}
thread_data.stop_event = CreateEvent(NULL, true, false, NULL);
if (!thread_data.stop_event) {
hlog("init_shmem_thread: Failed to create stop event: %d", GetLastError());
return false;
}
for (size_t i = 0; i < NUM_BUFFERS; i++) {
InitializeCriticalSection(&thread_data.mutexes[i]);
}
InitializeCriticalSection(&thread_data.data_mutex);
thread_data.copy_thread = CreateThread(NULL, 0, copy_thread, NULL, 0, NULL);
if (!thread_data.copy_thread) {
hlog("init_shmem_thread: Failed to create thread: %d", GetLastError());
return false;
}
return true;
}
#ifndef ALIGN
#define ALIGN(bytes, align) (((bytes) + ((align)-1)) & ~((align)-1))
#endif
bool capture_init_shmem(struct shmem_data **data, HWND window, uint32_t cx, uint32_t cy, uint32_t pitch,
uint32_t format, bool flip)
{
uint32_t tex_size = cy * pitch;
uint32_t aligned_header = ALIGN(sizeof(struct shmem_data), 32);
uint32_t aligned_tex = ALIGN(tex_size, 32);
uint32_t total_size = aligned_header + aligned_tex * 2 + 32;
uintptr_t align_pos;
if (!init_shared_info(total_size, window)) {
hlog("capture_init_shmem: Failed to initialize memory");
return false;
}
*data = shmem_info;
/* to ensure fast copy rate, align texture data to 256bit addresses */
align_pos = (uintptr_t)shmem_info;
align_pos += aligned_header;
align_pos &= ~(32 - 1);
align_pos -= (uintptr_t)shmem_info;
if (align_pos < sizeof(struct shmem_data))
align_pos += 32;
(*data)->last_tex = -1;
(*data)->tex1_offset = (uint32_t)align_pos;
(*data)->tex2_offset = (*data)->tex1_offset + aligned_tex;
global_hook_info->hook_ver_major = HOOK_VER_MAJOR;
global_hook_info->hook_ver_minor = HOOK_VER_MINOR;
global_hook_info->window = (uint32_t)(uintptr_t)window;
global_hook_info->type = CAPTURE_TYPE_MEMORY;
global_hook_info->format = format;
global_hook_info->flip = flip;
global_hook_info->map_id = shmem_id_counter;
global_hook_info->map_size = total_size;
global_hook_info->pitch = pitch;
global_hook_info->cx = cx;
global_hook_info->cy = cy;
global_hook_info->UNUSED_base_cx = cx;
global_hook_info->UNUSED_base_cy = cy;
if (!init_shmem_thread(pitch, cy)) {
return false;
}
if (!SetEvent(signal_ready)) {
hlog("capture_init_shmem: Failed to signal ready: %d", GetLastError());
return false;
}
active = true;
return true;
}
static inline void thread_data_free(void)
{
if (thread_data.copy_thread) {
DWORD ret;
SetEvent(thread_data.stop_event);
ret = WaitForSingleObject(thread_data.copy_thread, 500);
if (ret != WAIT_OBJECT_0)
TerminateThread(thread_data.copy_thread, (DWORD)-1);
CloseHandle(thread_data.copy_thread);
}
if (thread_data.stop_event)
CloseHandle(thread_data.stop_event);
if (thread_data.copy_event)
CloseHandle(thread_data.copy_event);
for (size_t i = 0; i < NUM_BUFFERS; i++)
DeleteCriticalSection(&thread_data.mutexes[i]);
DeleteCriticalSection(&thread_data.data_mutex);
memset(&thread_data, 0, sizeof(thread_data));
}
void capture_free(void)
{
thread_data_free();
if (shmem_info) {
UnmapViewOfFile(shmem_info);
shmem_info = NULL;
}
close_handle(&shmem_file_handle);
SetEvent(signal_restart);
active = false;
}
#define HOOK_NAME L"graphics_hook_dup_mutex"
static inline HANDLE open_mutex_plus_id(const wchar_t *name, DWORD id)
{
wchar_t new_name[64];
_snwprintf(new_name, 64, L"%s%lu", name, id);
return open_mutex(new_name);
}
static bool init_dll(void)
{
DWORD pid = GetCurrentProcessId();
HANDLE h;
h = open_mutex_plus_id(HOOK_NAME, pid);
if (h) {
CloseHandle(h);
return false;
}
dup_hook_mutex = create_mutex_plus_id(HOOK_NAME, pid);
return !!dup_hook_mutex;
}
BOOL WINAPI DllMain(HINSTANCE hinst, DWORD reason, LPVOID unused1)
{
if (reason == DLL_PROCESS_ATTACH) {
wchar_t name[MAX_PATH];
dll_inst = hinst;
if (!init_dll()) {
DbgOut("[OBS] Duplicate hook library");
return false;
}
HANDLE cur_thread;
bool success = DuplicateHandle(GetCurrentProcess(), GetCurrentThread(), GetCurrentProcess(),
&cur_thread, SYNCHRONIZE, false, 0);
if (!success)
DbgOut("[OBS] Failed to get current thread handle");
if (!init_signals()) {
return false;
}
if (!init_system_path()) {
return false;
}
if (!init_hook_info()) {
return false;
}
if (!init_mutexes()) {
return false;
}
/* this prevents the library from being automatically unloaded
* by the next FreeLibrary call */
GetModuleFileNameW(hinst, name, MAX_PATH);
LoadLibraryW(name);
capture_thread =
CreateThread(NULL, 0, (LPTHREAD_START_ROUTINE)main_capture_thread, (LPVOID)cur_thread, 0, 0);
if (!capture_thread) {
CloseHandle(cur_thread);
return false;
}
} else if (reason == DLL_PROCESS_DETACH) {
if (!dup_hook_mutex) {
return true;
}
if (capture_thread) {
stop_loop = true;
WaitForSingleObject(capture_thread, 300);
CloseHandle(capture_thread);
}
free_hook();
}
(void)unused1;
return true;
}
__declspec(dllexport) LRESULT CALLBACK dummy_debug_proc(int code, WPARAM wparam, LPARAM lparam)
{
static bool hooking = true;
MSG *msg = (MSG *)lparam;
if (hooking && msg->message == (WM_USER + 432)) {
HMODULE user32 = GetModuleHandleW(L"USER32");
BOOL(WINAPI * unhook_windows_hook_ex)(HHOOK) = NULL;
unhook_windows_hook_ex = ms_get_obfuscated_func(user32, "VojeleY`bdgxvM`hhDz", 0x7F55F80C9EE3A213ULL);
if (unhook_windows_hook_ex)
unhook_windows_hook_ex((HHOOK)msg->lParam);
hooking = false;
}
return CallNextHookEx(0, code, wparam, lparam);
}