| 1 |
/* -*- c-basic-offset: 8 -*- |
| 2 |
rdesktop: A Remote Desktop Protocol client. |
| 3 |
Seamless windows - Remote server hook DLL |
| 4 |
|
| 5 |
Based on code copyright (C) 2004-2005 Martin Wickett |
| 6 |
|
| 7 |
Copyright (C) Peter Åstrand <astrand@cendio.se> 2005-2006 |
| 8 |
Copyright (C) Pierre Ossman <ossman@cendio.se> 2006 |
| 9 |
|
| 10 |
This program is free software; you can redistribute it and/or modify |
| 11 |
it under the terms of the GNU General Public License as published by |
| 12 |
the Free Software Foundation; either version 2 of the License, or |
| 13 |
(at your option) any later version. |
| 14 |
|
| 15 |
This program is distributed in the hope that it will be useful, |
| 16 |
but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 17 |
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 18 |
GNU General Public License for more details. |
| 19 |
|
| 20 |
You should have received a copy of the GNU General Public License |
| 21 |
along with this program; if not, write to the Free Software |
| 22 |
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| 23 |
*/ |
| 24 |
|
| 25 |
#include <stdio.h> |
| 26 |
#include <stdarg.h> |
| 27 |
|
| 28 |
#include <windows.h> |
| 29 |
#include <winuser.h> |
| 30 |
|
| 31 |
#include "../vchannel.h" |
| 32 |
|
| 33 |
#define DLL_EXPORT __declspec(dllexport) |
| 34 |
|
| 35 |
#ifdef __GNUC__ |
| 36 |
#define SHARED __attribute__((section ("SHAREDDATA"), shared)) |
| 37 |
#else |
| 38 |
#define SHARED |
| 39 |
#endif |
| 40 |
|
| 41 |
// Shared DATA |
| 42 |
#pragma data_seg ( "SHAREDDATA" ) |
| 43 |
|
| 44 |
// this is the total number of processes this dll is currently attached to |
| 45 |
int g_instance_count SHARED = 0; |
| 46 |
|
| 47 |
// blocks for locally generated events |
| 48 |
HWND g_block_move_hwnd SHARED = NULL; |
| 49 |
unsigned int g_block_move_serial SHARED = 0; |
| 50 |
RECT g_block_move SHARED = { 0, 0, 0, 0 }; |
| 51 |
|
| 52 |
unsigned int g_blocked_zchange_serial SHARED = 0; |
| 53 |
HWND g_blocked_zchange[2] SHARED = { NULL, NULL }; |
| 54 |
|
| 55 |
unsigned int g_blocked_focus_serial SHARED = 0; |
| 56 |
HWND g_blocked_focus SHARED = NULL; |
| 57 |
|
| 58 |
unsigned int g_blocked_state_serial SHARED = 0; |
| 59 |
HWND g_blocked_state_hwnd SHARED = NULL; |
| 60 |
int g_blocked_state SHARED = -1; |
| 61 |
|
| 62 |
#pragma data_seg () |
| 63 |
|
| 64 |
#pragma comment(linker, "/section:SHAREDDATA,rws") |
| 65 |
|
| 66 |
#define FOCUS_MSG_NAME "WM_SEAMLESS_FOCUS" |
| 67 |
static UINT g_wm_seamless_focus; |
| 68 |
|
| 69 |
static HHOOK g_cbt_hook = NULL; |
| 70 |
static HHOOK g_wndproc_hook = NULL; |
| 71 |
static HHOOK g_wndprocret_hook = NULL; |
| 72 |
|
| 73 |
static HINSTANCE g_instance = NULL; |
| 74 |
|
| 75 |
static HANDLE g_mutex = NULL; |
| 76 |
|
| 77 |
static void |
| 78 |
update_position(HWND hwnd) |
| 79 |
{ |
| 80 |
RECT rect, blocked; |
| 81 |
HWND blocked_hwnd; |
| 82 |
unsigned int serial; |
| 83 |
|
| 84 |
WaitForSingleObject(g_mutex, INFINITE); |
| 85 |
blocked_hwnd = g_block_move_hwnd; |
| 86 |
serial = g_block_move_serial; |
| 87 |
memcpy(&blocked, &g_block_move, sizeof(RECT)); |
| 88 |
ReleaseMutex(g_mutex); |
| 89 |
|
| 90 |
vchannel_block(); |
| 91 |
|
| 92 |
if (!GetWindowRect(hwnd, &rect)) |
| 93 |
{ |
| 94 |
debug("GetWindowRect failed!\n"); |
| 95 |
goto end; |
| 96 |
} |
| 97 |
|
| 98 |
if ((hwnd == blocked_hwnd) && (rect.left == blocked.left) && (rect.top == blocked.top) |
| 99 |
&& (rect.right == blocked.right) && (rect.bottom == blocked.bottom)) |
| 100 |
goto end; |
| 101 |
|
| 102 |
vchannel_write("POSITION", "0x%08lx,%d,%d,%d,%d,0x%08x", |
| 103 |
hwnd, |
| 104 |
rect.left, rect.top, rect.right - rect.left, rect.bottom - rect.top, 0); |
| 105 |
|
| 106 |
end: |
| 107 |
vchannel_unblock(); |
| 108 |
} |
| 109 |
|
| 110 |
static void |
| 111 |
update_zorder(HWND hwnd) |
| 112 |
{ |
| 113 |
HWND behind; |
| 114 |
HWND block_hwnd, block_behind; |
| 115 |
unsigned int serial; |
| 116 |
|
| 117 |
WaitForSingleObject(g_mutex, INFINITE); |
| 118 |
serial = g_blocked_zchange_serial; |
| 119 |
block_hwnd = g_blocked_zchange[0]; |
| 120 |
block_behind = g_blocked_zchange[1]; |
| 121 |
ReleaseMutex(g_mutex); |
| 122 |
|
| 123 |
vchannel_block(); |
| 124 |
|
| 125 |
behind = GetNextWindow(hwnd, GW_HWNDPREV); |
| 126 |
while (behind) |
| 127 |
{ |
| 128 |
LONG style; |
| 129 |
|
| 130 |
style = GetWindowLong(behind, GWL_STYLE); |
| 131 |
|
| 132 |
if ((!(style & WS_CHILD) || (style & WS_POPUP)) && (style & WS_VISIBLE)) |
| 133 |
break; |
| 134 |
|
| 135 |
behind = GetNextWindow(behind, GW_HWNDPREV); |
| 136 |
} |
| 137 |
|
| 138 |
if ((hwnd == block_hwnd) && (behind == block_behind)) |
| 139 |
vchannel_write("ACK", "%u", serial); |
| 140 |
else |
| 141 |
vchannel_write("ZCHANGE", "0x%08lx,0x%08lx,0x%08x", hwnd, behind, 0); |
| 142 |
|
| 143 |
vchannel_unblock(); |
| 144 |
} |
| 145 |
|
| 146 |
static HWND |
| 147 |
get_parent(HWND hwnd) |
| 148 |
{ |
| 149 |
LONG style; |
| 150 |
HWND parent; |
| 151 |
|
| 152 |
style = GetWindowLong(hwnd, GWL_STYLE); |
| 153 |
|
| 154 |
if (style & (WS_POPUP | DS_MODALFRAME)) |
| 155 |
{ |
| 156 |
parent = (HWND) GetWindowLong(hwnd, GWL_HWNDPARENT); |
| 157 |
|
| 158 |
if (parent) |
| 159 |
{ |
| 160 |
style = GetWindowLong(parent, GWL_STYLE); |
| 161 |
if (((style & WS_CHILD) && !(style & WS_POPUP)) || !(style & WS_VISIBLE)) |
| 162 |
parent = NULL; |
| 163 |
} |
| 164 |
|
| 165 |
if (!parent) |
| 166 |
parent = GetWindow(hwnd, GW_OWNER); |
| 167 |
|
| 168 |
if (parent) |
| 169 |
{ |
| 170 |
style = GetWindowLong(parent, GWL_STYLE); |
| 171 |
if (((style & WS_CHILD) && !(style & WS_POPUP)) || !(style & WS_VISIBLE)) |
| 172 |
parent = NULL; |
| 173 |
} |
| 174 |
|
| 175 |
if (!parent) |
| 176 |
parent = (HWND) - 1; |
| 177 |
} |
| 178 |
else |
| 179 |
parent = NULL; |
| 180 |
|
| 181 |
return parent; |
| 182 |
} |
| 183 |
|
| 184 |
static LRESULT CALLBACK |
| 185 |
wndproc_hook_proc(int code, WPARAM cur_thread, LPARAM details) |
| 186 |
{ |
| 187 |
HWND hwnd, parent; |
| 188 |
UINT msg; |
| 189 |
WPARAM wparam; |
| 190 |
LPARAM lparam; |
| 191 |
|
| 192 |
LONG style; |
| 193 |
|
| 194 |
if (code < 0) |
| 195 |
goto end; |
| 196 |
|
| 197 |
hwnd = ((CWPSTRUCT *) details)->hwnd; |
| 198 |
msg = ((CWPSTRUCT *) details)->message; |
| 199 |
wparam = ((CWPSTRUCT *) details)->wParam; |
| 200 |
lparam = ((CWPSTRUCT *) details)->lParam; |
| 201 |
|
| 202 |
style = GetWindowLong(hwnd, GWL_STYLE); |
| 203 |
|
| 204 |
/* Docs say that WS_CHILD and WS_POPUP is an illegal combination, |
| 205 |
but they exist nonetheless. */ |
| 206 |
if ((style & WS_CHILD) && !(style & WS_POPUP)) |
| 207 |
goto end; |
| 208 |
|
| 209 |
parent = get_parent(hwnd); |
| 210 |
|
| 211 |
switch (msg) |
| 212 |
{ |
| 213 |
case WM_WINDOWPOSCHANGED: |
| 214 |
{ |
| 215 |
WINDOWPOS *wp = (WINDOWPOS *) lparam; |
| 216 |
|
| 217 |
if (wp->flags & SWP_SHOWWINDOW) |
| 218 |
{ |
| 219 |
unsigned short title[150]; |
| 220 |
int state; |
| 221 |
DWORD pid; |
| 222 |
int flags; |
| 223 |
|
| 224 |
GetWindowThreadProcessId(hwnd, &pid); |
| 225 |
|
| 226 |
flags = 0; |
| 227 |
if (style & DS_MODALFRAME) |
| 228 |
flags |= SEAMLESS_CREATE_MODAL; |
| 229 |
|
| 230 |
vchannel_write("CREATE", "0x%08lx,0x%08lx,0x%08lx,0x%08x", |
| 231 |
(long) hwnd, (long) pid, (long) parent, |
| 232 |
flags); |
| 233 |
|
| 234 |
GetWindowTextW(hwnd, title, sizeof(title) / sizeof(*title)); |
| 235 |
|
| 236 |
vchannel_write("TITLE", "0x%08lx,%s,0x%08x", hwnd, |
| 237 |
vchannel_strfilter_unicode(title), 0); |
| 238 |
|
| 239 |
if (style & WS_MAXIMIZE) |
| 240 |
state = 2; |
| 241 |
else if (style & WS_MINIMIZE) |
| 242 |
state = 1; |
| 243 |
else |
| 244 |
state = 0; |
| 245 |
|
| 246 |
update_position(hwnd); |
| 247 |
|
| 248 |
vchannel_write("STATE", "0x%08lx,0x%08x,0x%08x", hwnd, |
| 249 |
state, 0); |
| 250 |
} |
| 251 |
|
| 252 |
if (wp->flags & SWP_HIDEWINDOW) |
| 253 |
vchannel_write("DESTROY", "0x%08lx,0x%08x", hwnd, 0); |
| 254 |
|
| 255 |
if (!(style & WS_VISIBLE) || (style & WS_MINIMIZE)) |
| 256 |
break; |
| 257 |
|
| 258 |
if (!(wp->flags & SWP_NOMOVE && wp->flags & SWP_NOSIZE)) |
| 259 |
update_position(hwnd); |
| 260 |
|
| 261 |
break; |
| 262 |
} |
| 263 |
|
| 264 |
case WM_SIZE: |
| 265 |
if (!(style & WS_VISIBLE) || (style & WS_MINIMIZE)) |
| 266 |
break; |
| 267 |
update_position(hwnd); |
| 268 |
break; |
| 269 |
|
| 270 |
case WM_MOVE: |
| 271 |
if (!(style & WS_VISIBLE) || (style & WS_MINIMIZE)) |
| 272 |
break; |
| 273 |
update_position(hwnd); |
| 274 |
break; |
| 275 |
|
| 276 |
case WM_DESTROY: |
| 277 |
if (!(style & WS_VISIBLE)) |
| 278 |
break; |
| 279 |
vchannel_write("DESTROY", "0x%08lx,0x%08x", hwnd, 0); |
| 280 |
break; |
| 281 |
|
| 282 |
default: |
| 283 |
break; |
| 284 |
} |
| 285 |
|
| 286 |
end: |
| 287 |
return CallNextHookEx(g_wndproc_hook, code, cur_thread, details); |
| 288 |
} |
| 289 |
|
| 290 |
static LRESULT CALLBACK |
| 291 |
wndprocret_hook_proc(int code, WPARAM cur_thread, LPARAM details) |
| 292 |
{ |
| 293 |
HWND hwnd, parent; |
| 294 |
UINT msg; |
| 295 |
WPARAM wparam; |
| 296 |
LPARAM lparam; |
| 297 |
|
| 298 |
LONG style; |
| 299 |
|
| 300 |
if (code < 0) |
| 301 |
goto end; |
| 302 |
|
| 303 |
hwnd = ((CWPRETSTRUCT *) details)->hwnd; |
| 304 |
msg = ((CWPRETSTRUCT *) details)->message; |
| 305 |
wparam = ((CWPRETSTRUCT *) details)->wParam; |
| 306 |
lparam = ((CWPRETSTRUCT *) details)->lParam; |
| 307 |
|
| 308 |
style = GetWindowLong(hwnd, GWL_STYLE); |
| 309 |
|
| 310 |
/* Docs say that WS_CHILD and WS_POPUP is an illegal combination, |
| 311 |
but they exist nonetheless. */ |
| 312 |
if ((style & WS_CHILD) && !(style & WS_POPUP)) |
| 313 |
goto end; |
| 314 |
|
| 315 |
parent = get_parent(hwnd); |
| 316 |
|
| 317 |
switch (msg) |
| 318 |
{ |
| 319 |
case WM_WINDOWPOSCHANGED: |
| 320 |
{ |
| 321 |
WINDOWPOS *wp = (WINDOWPOS *) lparam; |
| 322 |
|
| 323 |
if (!(style & WS_VISIBLE) || (style & WS_MINIMIZE)) |
| 324 |
break; |
| 325 |
|
| 326 |
if (!(wp->flags & SWP_NOZORDER)) |
| 327 |
update_zorder(hwnd); |
| 328 |
|
| 329 |
break; |
| 330 |
} |
| 331 |
|
| 332 |
|
| 333 |
case WM_SETTEXT: |
| 334 |
{ |
| 335 |
unsigned short title[150]; |
| 336 |
if (!(style & WS_VISIBLE)) |
| 337 |
break; |
| 338 |
/* We cannot use the string in lparam because |
| 339 |
we need unicode. */ |
| 340 |
GetWindowTextW(hwnd, title, sizeof(title) / sizeof(*title)); |
| 341 |
vchannel_write("TITLE", "0x%08lx,%s,0x%08x", hwnd, |
| 342 |
vchannel_strfilter_unicode(title), 0); |
| 343 |
break; |
| 344 |
} |
| 345 |
|
| 346 |
default: |
| 347 |
break; |
| 348 |
} |
| 349 |
|
| 350 |
if (msg == g_wm_seamless_focus) |
| 351 |
{ |
| 352 |
/* FIXME: SetForegroundWindow() kills menus. Need to find a |
| 353 |
clean way to solve this. */ |
| 354 |
if ((GetForegroundWindow() != hwnd) && !parent) |
| 355 |
SetForegroundWindow(hwnd); |
| 356 |
|
| 357 |
vchannel_write("ACK", "%u", g_blocked_focus_serial); |
| 358 |
} |
| 359 |
|
| 360 |
end: |
| 361 |
return CallNextHookEx(g_wndprocret_hook, code, cur_thread, details); |
| 362 |
} |
| 363 |
|
| 364 |
static LRESULT CALLBACK |
| 365 |
cbt_hook_proc(int code, WPARAM wparam, LPARAM lparam) |
| 366 |
{ |
| 367 |
if (code < 0) |
| 368 |
goto end; |
| 369 |
|
| 370 |
switch (code) |
| 371 |
{ |
| 372 |
case HCBT_MINMAX: |
| 373 |
{ |
| 374 |
int show, state, blocked; |
| 375 |
HWND blocked_hwnd; |
| 376 |
unsigned int serial; |
| 377 |
|
| 378 |
WaitForSingleObject(g_mutex, INFINITE); |
| 379 |
blocked_hwnd = g_blocked_state_hwnd; |
| 380 |
serial = g_blocked_state_serial; |
| 381 |
blocked = g_blocked_state; |
| 382 |
ReleaseMutex(g_mutex); |
| 383 |
|
| 384 |
show = LOWORD(lparam); |
| 385 |
|
| 386 |
if ((show == SW_NORMAL) || (show == SW_SHOWNORMAL) |
| 387 |
|| (show == SW_RESTORE)) |
| 388 |
state = 0; |
| 389 |
else if ((show == SW_MINIMIZE) || (show == SW_SHOWMINIMIZED)) |
| 390 |
state = 1; |
| 391 |
else if ((show == SW_MAXIMIZE) || (show == SW_SHOWMAXIMIZED)) |
| 392 |
state = 2; |
| 393 |
else |
| 394 |
{ |
| 395 |
debug("Unexpected show: %d", show); |
| 396 |
break; |
| 397 |
} |
| 398 |
|
| 399 |
if ((blocked_hwnd == (HWND) wparam) && (blocked == state)) |
| 400 |
vchannel_write("ACK", "%u", serial); |
| 401 |
else |
| 402 |
vchannel_write("STATE", "0x%08lx,0x%08x,0x%08x", |
| 403 |
(HWND) wparam, state, 0); |
| 404 |
|
| 405 |
break; |
| 406 |
} |
| 407 |
|
| 408 |
default: |
| 409 |
break; |
| 410 |
} |
| 411 |
|
| 412 |
end: |
| 413 |
return CallNextHookEx(g_cbt_hook, code, wparam, lparam); |
| 414 |
} |
| 415 |
|
| 416 |
DLL_EXPORT void |
| 417 |
SetHooks(void) |
| 418 |
{ |
| 419 |
if (!g_cbt_hook) |
| 420 |
g_cbt_hook = SetWindowsHookEx(WH_CBT, cbt_hook_proc, g_instance, 0); |
| 421 |
|
| 422 |
if (!g_wndproc_hook) |
| 423 |
g_wndproc_hook = SetWindowsHookEx(WH_CALLWNDPROC, wndproc_hook_proc, g_instance, 0); |
| 424 |
|
| 425 |
if (!g_wndprocret_hook) |
| 426 |
g_wndprocret_hook = |
| 427 |
SetWindowsHookEx(WH_CALLWNDPROCRET, wndprocret_hook_proc, g_instance, 0); |
| 428 |
} |
| 429 |
|
| 430 |
DLL_EXPORT void |
| 431 |
RemoveHooks(void) |
| 432 |
{ |
| 433 |
if (g_cbt_hook) |
| 434 |
UnhookWindowsHookEx(g_cbt_hook); |
| 435 |
|
| 436 |
if (g_wndproc_hook) |
| 437 |
UnhookWindowsHookEx(g_wndproc_hook); |
| 438 |
|
| 439 |
if (g_wndprocret_hook) |
| 440 |
UnhookWindowsHookEx(g_wndprocret_hook); |
| 441 |
} |
| 442 |
|
| 443 |
DLL_EXPORT void |
| 444 |
SafeMoveWindow(unsigned int serial, HWND hwnd, int x, int y, int width, int height) |
| 445 |
{ |
| 446 |
RECT rect; |
| 447 |
|
| 448 |
WaitForSingleObject(g_mutex, INFINITE); |
| 449 |
g_block_move_hwnd = hwnd; |
| 450 |
g_block_move_serial = serial; |
| 451 |
g_block_move.left = x; |
| 452 |
g_block_move.top = y; |
| 453 |
g_block_move.right = x + width; |
| 454 |
g_block_move.bottom = y + height; |
| 455 |
ReleaseMutex(g_mutex); |
| 456 |
|
| 457 |
SetWindowPos(hwnd, NULL, x, y, width, height, SWP_NOACTIVATE | SWP_NOZORDER); |
| 458 |
|
| 459 |
vchannel_write("ACK", "%u", serial); |
| 460 |
|
| 461 |
if (!GetWindowRect(hwnd, &rect)) |
| 462 |
debug("GetWindowRect failed!\n"); |
| 463 |
else if ((rect.left != x) || (rect.top != y) || (rect.right != x + width) |
| 464 |
|| (rect.bottom != y + height)) |
| 465 |
update_position(hwnd); |
| 466 |
|
| 467 |
WaitForSingleObject(g_mutex, INFINITE); |
| 468 |
g_block_move_hwnd = NULL; |
| 469 |
memset(&g_block_move, 0, sizeof(RECT)); |
| 470 |
ReleaseMutex(g_mutex); |
| 471 |
} |
| 472 |
|
| 473 |
DLL_EXPORT void |
| 474 |
SafeZChange(unsigned int serial, HWND hwnd, HWND behind) |
| 475 |
{ |
| 476 |
WaitForSingleObject(g_mutex, INFINITE); |
| 477 |
g_blocked_zchange_serial = serial; |
| 478 |
g_blocked_zchange[0] = hwnd; |
| 479 |
g_blocked_zchange[1] = behind; |
| 480 |
ReleaseMutex(g_mutex); |
| 481 |
|
| 482 |
if (behind == NULL) |
| 483 |
behind = HWND_TOP; |
| 484 |
|
| 485 |
SetWindowPos(hwnd, behind, 0, 0, 0, 0, SWP_NOACTIVATE | SWP_NOMOVE | SWP_NOSIZE); |
| 486 |
|
| 487 |
WaitForSingleObject(g_mutex, INFINITE); |
| 488 |
g_blocked_zchange[0] = NULL; |
| 489 |
g_blocked_zchange[1] = NULL; |
| 490 |
ReleaseMutex(g_mutex); |
| 491 |
} |
| 492 |
|
| 493 |
DLL_EXPORT void |
| 494 |
SafeFocus(unsigned int serial, HWND hwnd) |
| 495 |
{ |
| 496 |
WaitForSingleObject(g_mutex, INFINITE); |
| 497 |
g_blocked_focus_serial = serial; |
| 498 |
g_blocked_focus = hwnd; |
| 499 |
ReleaseMutex(g_mutex); |
| 500 |
|
| 501 |
SendMessage(hwnd, g_wm_seamless_focus, 0, 0); |
| 502 |
|
| 503 |
WaitForSingleObject(g_mutex, INFINITE); |
| 504 |
g_blocked_focus = NULL; |
| 505 |
ReleaseMutex(g_mutex); |
| 506 |
} |
| 507 |
|
| 508 |
DLL_EXPORT void |
| 509 |
SafeSetState(unsigned int serial, HWND hwnd, int state) |
| 510 |
{ |
| 511 |
LONG style; |
| 512 |
int curstate; |
| 513 |
|
| 514 |
vchannel_block(); |
| 515 |
|
| 516 |
style = GetWindowLong(hwnd, GWL_STYLE); |
| 517 |
|
| 518 |
if (style & WS_MAXIMIZE) |
| 519 |
curstate = 2; |
| 520 |
else if (style & WS_MINIMIZE) |
| 521 |
curstate = 1; |
| 522 |
else |
| 523 |
curstate = 0; |
| 524 |
|
| 525 |
if (state == curstate) |
| 526 |
{ |
| 527 |
vchannel_write("ACK", "%u", serial); |
| 528 |
vchannel_unblock(); |
| 529 |
return; |
| 530 |
} |
| 531 |
|
| 532 |
WaitForSingleObject(g_mutex, INFINITE); |
| 533 |
g_blocked_state_hwnd = hwnd; |
| 534 |
g_blocked_state_serial = serial; |
| 535 |
g_blocked_state = state; |
| 536 |
ReleaseMutex(g_mutex); |
| 537 |
|
| 538 |
vchannel_unblock(); |
| 539 |
|
| 540 |
if (state == 0) |
| 541 |
ShowWindow(hwnd, SW_RESTORE); |
| 542 |
else if (state == 1) |
| 543 |
ShowWindow(hwnd, SW_MINIMIZE); |
| 544 |
else if (state == 2) |
| 545 |
ShowWindow(hwnd, SW_MAXIMIZE); |
| 546 |
else |
| 547 |
debug("Invalid state %d sent.", state); |
| 548 |
|
| 549 |
WaitForSingleObject(g_mutex, INFINITE); |
| 550 |
g_blocked_state_hwnd = NULL; |
| 551 |
g_blocked_state = -1; |
| 552 |
ReleaseMutex(g_mutex); |
| 553 |
} |
| 554 |
|
| 555 |
DLL_EXPORT int |
| 556 |
GetInstanceCount() |
| 557 |
{ |
| 558 |
return g_instance_count; |
| 559 |
} |
| 560 |
|
| 561 |
BOOL APIENTRY |
| 562 |
DllMain(HINSTANCE hinstDLL, DWORD ul_reason_for_call, LPVOID lpReserved) |
| 563 |
{ |
| 564 |
switch (ul_reason_for_call) |
| 565 |
{ |
| 566 |
case DLL_PROCESS_ATTACH: |
| 567 |
// remember our instance handle |
| 568 |
g_instance = hinstDLL; |
| 569 |
|
| 570 |
g_mutex = CreateMutex(NULL, FALSE, "Local\\SeamlessDLL"); |
| 571 |
if (!g_mutex) |
| 572 |
return FALSE; |
| 573 |
|
| 574 |
WaitForSingleObject(g_mutex, INFINITE); |
| 575 |
++g_instance_count; |
| 576 |
ReleaseMutex(g_mutex); |
| 577 |
|
| 578 |
g_wm_seamless_focus = RegisterWindowMessage(FOCUS_MSG_NAME); |
| 579 |
|
| 580 |
vchannel_open(); |
| 581 |
|
| 582 |
break; |
| 583 |
|
| 584 |
case DLL_THREAD_ATTACH: |
| 585 |
break; |
| 586 |
|
| 587 |
case DLL_THREAD_DETACH: |
| 588 |
break; |
| 589 |
|
| 590 |
case DLL_PROCESS_DETACH: |
| 591 |
WaitForSingleObject(g_mutex, INFINITE); |
| 592 |
--g_instance_count; |
| 593 |
ReleaseMutex(g_mutex); |
| 594 |
|
| 595 |
vchannel_close(); |
| 596 |
|
| 597 |
CloseHandle(g_mutex); |
| 598 |
|
| 599 |
break; |
| 600 |
} |
| 601 |
|
| 602 |
return TRUE; |
| 603 |
} |
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