int WINAPI
WinMain(HINSTANCE instance, HINSTANCE prev_instance, LPSTR cmdline, int cmdshow)
{
int success = 0;
HANDLE helper = NULL;
HMODULE hookdll = NULL;
SYSTEM_INFO si;
set_hooks_proc_t set_hooks_fn;
remove_hooks_proc_t remove_hooks_fn;
get_instance_count_proc_t instance_count_fn;
int check_counter;
if (strlen(cmdline) == 0) {
message("No command line specified.");
return -1;
}
if (vchannel_open()) {
message("Unable to set up the virtual channel.");
return -1;
}
GetSystemInfo(&si);
switch (si.wProcessorArchitecture) {
case PROCESSOR_ARCHITECTURE_INTEL:
hookdll = LoadLibrary("seamlessrdp32.dll");
break;
case PROCESSOR_ARCHITECTURE_AMD64:
hookdll = LoadLibrary("seamlessrdp64.dll");
break;
default:
message("Unsupported processor architecture.");
break;
}
if (!hookdll) {
message("Could not load hook DLL. Unable to continue.");
goto close_vchannel;
}
set_hooks_fn = (set_hooks_proc_t) GetProcAddress(hookdll, "SetHooks");
remove_hooks_fn =
(remove_hooks_proc_t) GetProcAddress(hookdll, "RemoveHooks");
instance_count_fn =
(get_instance_count_proc_t) GetProcAddress(hookdll, "GetInstanceCount");
g_move_window_fn =
(move_window_proc_t) GetProcAddress(hookdll, "SafeMoveWindow");
g_zchange_fn = (zchange_proc_t) GetProcAddress(hookdll, "SafeZChange");
g_focus_fn = (focus_proc_t) GetProcAddress(hookdll, "SafeFocus");
g_set_state_fn = (set_state_proc_t) GetProcAddress(hookdll, "SafeSetState");
if (!set_hooks_fn || !remove_hooks_fn || !instance_count_fn
|| !g_move_window_fn || !g_zchange_fn || !g_focus_fn
|| !g_set_state_fn) {
message
("Hook DLL doesn't contain the correct functions. Unable to continue.");
goto close_hookdll;
}
/* Check if the DLL is already loaded */
switch (instance_count_fn()) {
case 0:
message("Hook DLL failed to initialize.");
goto close_hookdll;
break;
case 1:
break;
default:
message("Another running instance of Seamless RDP detected.");
goto close_hookdll;
}
helper = launch_helper();
ProcessIdToSessionId(GetCurrentProcessId(), &g_session_id);
build_startup_procs();
g_connected = is_connected();
g_desktop_hidden = is_desktop_hidden();
vchannel_write("HELLO", "0x%08x",
g_desktop_hidden ? SEAMLESS_HELLO_HIDDEN : 0);
set_hooks_fn();
/* Since we don't see the entire desktop we must resize windows
immediatly. */
SystemParametersInfo(SPI_SETDRAGFULLWINDOWS, TRUE, NULL, 0);
/* Disable screen saver since we cannot catch its windows. */
SystemParametersInfo(SPI_SETSCREENSAVEACTIVE, FALSE, NULL, 0);
/* We don't want windows denying requests to activate windows. */
SystemParametersInfo(SPI_SETFOREGROUNDLOCKTIMEOUT, 0, 0, 0);
if (!launch_app(cmdline)) {
// CreateProcess failed.
char msg[256];
_snprintf(msg, sizeof(msg),
"Unable to launch the requested application:\n%s", cmdline);
message(msg);
goto unhook;
}
check_counter = 5;
while (check_counter-- || !should_terminate()) {
BOOL connected;
MSG msg;
connected = is_connected();
if (connected && !g_connected) {
int flags;
/* These get reset on each reconnect */
SystemParametersInfo(SPI_SETDRAGFULLWINDOWS, TRUE, NULL, 0);
SystemParametersInfo(SPI_SETSCREENSAVEACTIVE, FALSE, NULL, 0);
SystemParametersInfo(SPI_SETFOREGROUNDLOCKTIMEOUT, 0, 0, 0);
flags = SEAMLESS_HELLO_RECONNECT;
if (g_desktop_hidden)
flags |= SEAMLESS_HELLO_HIDDEN;
vchannel_write("HELLO", "0x%08x", flags);
}
g_connected = connected;
if (check_counter < 0) {
BOOL hidden;
hidden = is_desktop_hidden();
if (hidden && !g_desktop_hidden)
vchannel_write("HIDE", "0x%08x", 0);
else if (!hidden && g_desktop_hidden)
vchannel_write("UNHIDE", "0x%08x", 0);
g_desktop_hidden = hidden;
check_counter = 5;
}
while (PeekMessage(&msg, NULL, 0, 0, PM_REMOVE)) {
TranslateMessage(&msg);
DispatchMessage(&msg);
}
process_cmds();
Sleep(100);
}
success = 1;
unhook:
remove_hooks_fn();
free_startup_procs();
if (helper) {
// Terminate seamlessrdphook32.exe
kill_15_9(helper, "SeamlessRDPHook", HELPER_TIMEOUT);
}
close_hookdll:
FreeLibrary(hookdll);
close_vchannel:
vchannel_close();
// Logoff the user. This is necessary because the session may
// have started processes that are not included in Microsofts
// list of processes to ignore. Typically ieuser.exe.
// FIXME: Only do this if WTSQuerySessionInformation indicates
// that we are the initial program.
ExitWindows(0, 0);
if (success)
return 1;
else
return -1;
}
int WINAPI
WinMain(HINSTANCE instance, HINSTANCE prev_instance, LPSTR cmdline, int cmdshow)
{
BOOL use_active_monitoring = DEFAULT_USE_ACTIVE_MONITORING;
HMODULE hookdll;
MSG msg;
int check_counter;
set_hooks_proc_t set_hooks_fn;
remove_hooks_proc_t remove_hooks_fn;
get_instance_count_proc_t instance_count_fn;
g_instance = instance;
load_configuration(&use_active_monitoring, &g_is_move_offscreen_forbidden);
if (! use_active_monitoring) {
hookdll = LoadLibrary("seamlessrdp.dll");
if (!hookdll)
{
message("Could not load hook DLL. Unable to continue.");
return -1;
}
if (IsWow64())
{
STARTUPINFO si;
PROCESS_INFORMATION pi;
ZeroMemory( &si, sizeof(si) );
si.cb = sizeof(si);
ZeroMemory( &pi, sizeof(pi) );
// Start the child process.
if (! CreateProcess(NULL, "hook_launcher_x64.exe", NULL, NULL, FALSE, 0, NULL, NULL, &si, &pi)) {
message("CreateProcess failed.\n");
return -1;
}
CloseHandle(pi.hProcess);
CloseHandle(pi.hThread);
}
set_hooks_fn = (set_hooks_proc_t) GetProcAddress(hookdll, "SetHooks");
remove_hooks_fn = (remove_hooks_proc_t) GetProcAddress(hookdll, "RemoveHooks");
instance_count_fn = (get_instance_count_proc_t) GetProcAddress(hookdll, "GetInstanceCount");
if (!set_hooks_fn || !remove_hooks_fn || !instance_count_fn)
{
FreeLibrary(hookdll);
message("Hook DLL doesn't contain the correct functions. Unable to continue.");
return -1;
}
/* Check if the DLL is already loaded */
if (instance_count_fn() != 1)
{
FreeLibrary(hookdll);
message("Another running instance of Seamless RDP detected.");
return -1;
}
}
ProcessIdToSessionId(GetCurrentProcessId(), &g_session_id);
build_startup_procs();
if (! SeamlessChannel_init())
return -1;
g_connected = is_connected();
g_desktop_hidden = is_desktop_hidden();
if (InternalWindow_create(instance, use_active_monitoring ? NULL : InternalWindow_processCopyData) == FALSE)
SeamlessChannel_sendDebug("Failed to create seamless internal window");
SeamlessChannel_sendHello(g_desktop_hidden ? SEAMLESS_HELLO_HIDDEN : 0);
if (use_active_monitoring)
start_windows_monitoring();
else
set_hooks_fn();
/* Since we don't see the entire desktop we must resize windows
immediatly. */
SystemParametersInfo(SPI_SETDRAGFULLWINDOWS, TRUE, NULL, 0);
/* Disable screen saver since we cannot catch its windows. */
SystemParametersInfo(SPI_SETSCREENSAVEACTIVE, FALSE, NULL, 0);
/* We don't want windows denying requests to activate windows. */
SystemParametersInfo(SPI_SETFOREGROUNDLOCKTIMEOUT, 0, 0, 0);
check_counter = 5;
while (1)
{
BOOL connected;
char* line = NULL;
int size = 0;
connected = is_connected();
if (connected && !g_connected)
{
int flags;
// We have to force reopening channel
SeamlessChannel_uninit();
SeamlessChannel_init();
/* These get reset on each reconnect */
SystemParametersInfo(SPI_SETDRAGFULLWINDOWS, TRUE, NULL, 0);
SystemParametersInfo(SPI_SETSCREENSAVEACTIVE, FALSE, NULL,
0);
SystemParametersInfo(SPI_SETFOREGROUNDLOCKTIMEOUT, 0, 0, 0);
flags = SEAMLESS_HELLO_RECONNECT;
if (g_desktop_hidden)
flags |= SEAMLESS_HELLO_HIDDEN;
SeamlessChannel_sendHello(flags);
}
g_connected = connected;
if (check_counter < 0)
{
BOOL hidden;
hidden = is_desktop_hidden();
if (hidden && !g_desktop_hidden)
SeamlessChannel_sendHide(0);
else if (!hidden && g_desktop_hidden)
SeamlessChannel_sendUnhide(0);
g_desktop_hidden = hidden;
check_counter = 5;
}
while (PeekMessage(&msg, NULL, 0, 0, PM_REMOVE))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
while (SeamlessChannel_recv(&line) >= 0) {
SeamlessChannel_process(line);
}
Sleep(100);
}
if (use_active_monitoring)
stop_windows_monitoring();
else {
remove_hooks_fn();
FreeLibrary(hookdll);
}
SeamlessChannel_uninit();
free_startup_procs();
return 1;
}
