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barrier/lib/platform/CMSWindowsPrimaryScreen.cpp
crs 4521fe4990 Fixed several win32 bugs. First, synergy wasn't forwarding mouse 
events to other hook functions, which broke some tools like objectbar.
Second, windows key processing was fixed.  Previously pressing and
release the key would only send a press event, locking the user onto
the client window;  also, the win32 server treated as a Meta modifier
instead of a Super modifier, which broke any use of it as any kind of
modifier key.  Third, added hacks to support several key combinations
on windows 95/98/me that are treated specially by windows, including
Alt+Tab, Alt+Shift+Tab, Alt+Esc, Alt+Shift+Esc, Ctrl+Esc, and any
combination using the windows key like Win+E and Win+F but not
Ctrl+Alt+Del.  Fourth, scroll lock only locking to the client (which
only happened when using a synergy server on windows) has been fixed;
unfortunately the solution causes a lot of screen redraws for some
reason.  Finally, there's been a fix to clipboard handling that may
or may not fix a problem where the clipboard would stop transferring
between systems after a little while.  I can't be sure if it fixes
the problem because I can't reproduce the problem.
2003-04-13 14:59:53 +00:00

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/*
* synergy -- mouse and keyboard sharing utility
* Copyright (C) 2002 Chris Schoeneman
*
* This package is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* found in the file COPYING that should have accompanied this file.
*
* This package is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include "CMSWindowsPrimaryScreen.h"
#include "CMSWindowsScreen.h"
#include "IPrimaryScreenReceiver.h"
#include "XScreen.h"
#include "CLog.h"
#include "CArch.h"
#include "CArchMiscWindows.h"
#include <cstring>
//
// map virtual key id to a name
//
static const char* g_vkToName[] = {
"vk 0x00",
"VK_LBUTTON",
"VK_RBUTTON",
"VK_CANCEL",
"VK_MBUTTON",
"vk 0x05",
"vk 0x06",
"vk 0x07",
"VK_BACK",
"VK_TAB",
"vk 0x0a",
"vk 0x0b",
"VK_CLEAR",
"VK_RETURN",
"vk 0x0e",
"vk 0x0f",
"VK_SHIFT",
"VK_CONTROL",
"VK_MENU",
"VK_PAUSE",
"VK_CAPITAL",
"VK_KANA",
"vk 0x16",
"VK_JUNJA",
"VK_FINAL",
"VK_KANJI",
"vk 0x1a",
"VK_ESCAPE",
"VK_CONVERT",
"VK_NONCONVERT",
"VK_ACCEPT",
"VK_MODECHANGE",
"VK_SPACE",
"VK_PRIOR",
"VK_NEXT",
"VK_END",
"VK_HOME",
"VK_LEFT",
"VK_UP",
"VK_RIGHT",
"VK_DOWN",
"VK_SELECT",
"VK_PRINT",
"VK_EXECUTE",
"VK_SNAPSHOT",
"VK_INSERT",
"VK_DELETE",
"VK_HELP",
"VK_0",
"VK_1",
"VK_2",
"VK_3",
"VK_4",
"VK_5",
"VK_6",
"VK_7",
"VK_8",
"VK_9",
"vk 0x3a",
"vk 0x3b",
"vk 0x3c",
"vk 0x3d",
"vk 0x3e",
"vk 0x3f",
"vk 0x40",
"VK_A",
"VK_B",
"VK_C",
"VK_D",
"VK_E",
"VK_F",
"VK_G",
"VK_H",
"VK_I",
"VK_J",
"VK_K",
"VK_L",
"VK_M",
"VK_N",
"VK_O",
"VK_P",
"VK_Q",
"VK_R",
"VK_S",
"VK_T",
"VK_U",
"VK_V",
"VK_W",
"VK_X",
"VK_Y",
"VK_Z",
"VK_LWIN",
"VK_RWIN",
"VK_APPS",
"vk 0x5e",
"vk 0x5f",
"VK_NUMPAD0",
"VK_NUMPAD1",
"VK_NUMPAD2",
"VK_NUMPAD3",
"VK_NUMPAD4",
"VK_NUMPAD5",
"VK_NUMPAD6",
"VK_NUMPAD7",
"VK_NUMPAD8",
"VK_NUMPAD9",
"VK_MULTIPLY",
"VK_ADD",
"VK_SEPARATOR",
"VK_SUBTRACT",
"VK_DECIMAL",
"VK_DIVIDE",
"VK_F1",
"VK_F2",
"VK_F3",
"VK_F4",
"VK_F5",
"VK_F6",
"VK_F7",
"VK_F8",
"VK_F9",
"VK_F10",
"VK_F11",
"VK_F12",
"VK_F13",
"VK_F14",
"VK_F15",
"VK_F16",
"VK_F17",
"VK_F18",
"VK_F19",
"VK_F20",
"VK_F21",
"VK_F22",
"VK_F23",
"VK_F24",
"vk 0x88",
"vk 0x89",
"vk 0x8a",
"vk 0x8b",
"vk 0x8c",
"vk 0x8d",
"vk 0x8e",
"vk 0x8f",
"VK_NUMLOCK",
"VK_SCROLL",
"vk 0x92",
"vk 0x93",
"vk 0x94",
"vk 0x95",
"vk 0x96",
"vk 0x97",
"vk 0x98",
"vk 0x99",
"vk 0x9a",
"vk 0x9b",
"vk 0x9c",
"vk 0x9d",
"vk 0x9e",
"vk 0x9f",
"VK_LSHIFT",
"VK_RSHIFT",
"VK_LCONTROL",
"VK_RCONTROL",
"VK_LMENU",
"VK_RMENU",
"vk 0xa6",
"vk 0xa7",
"vk 0xa8",
"vk 0xa9",
"vk 0xaa",
"vk 0xab",
"vk 0xac",
"vk 0xad",
"vk 0xae",
"vk 0xaf",
"vk 0xb0",
"vk 0xb1",
"vk 0xb2",
"vk 0xb3",
"vk 0xb4",
"vk 0xb5",
"vk 0xb6",
"vk 0xb7",
"vk 0xb8",
"vk 0xb9",
"vk 0xba",
"vk 0xbb",
"vk 0xbc",
"vk 0xbd",
"vk 0xbe",
"vk 0xbf",
"vk 0xc0",
"vk 0xc1",
"vk 0xc2",
"vk 0xc3",
"vk 0xc4",
"vk 0xc5",
"vk 0xc6",
"vk 0xc7",
"vk 0xc8",
"vk 0xc9",
"vk 0xca",
"vk 0xcb",
"vk 0xcc",
"vk 0xcd",
"vk 0xce",
"vk 0xcf",
"vk 0xd0",
"vk 0xd1",
"vk 0xd2",
"vk 0xd3",
"vk 0xd4",
"vk 0xd5",
"vk 0xd6",
"vk 0xd7",
"vk 0xd8",
"vk 0xd9",
"vk 0xda",
"vk 0xdb",
"vk 0xdc",
"vk 0xdd",
"vk 0xde",
"vk 0xdf",
"vk 0xe0",
"vk 0xe1",
"vk 0xe2",
"vk 0xe3",
"vk 0xe4",
"VK_PROCESSKEY",
"vk 0xe6",
"vk 0xe7",
"vk 0xe8",
"vk 0xe9",
"vk 0xea",
"vk 0xeb",
"vk 0xec",
"vk 0xed",
"vk 0xee",
"vk 0xef",
"vk 0xf0",
"vk 0xf1",
"vk 0xf2",
"vk 0xf3",
"vk 0xf4",
"vk 0xf5",
"VK_ATTN",
"VK_CRSEL",
"VK_EXSEL",
"VK_EREOF",
"VK_PLAY",
"VK_ZOOM",
"VK_NONAME",
"VK_PA1",
"VK_OEM_CLEAR",
"vk 0xff"
};
//
// CMSWindowsPrimaryScreen
//
CMSWindowsPrimaryScreen::CMSWindowsPrimaryScreen(
IScreenReceiver* receiver,
IPrimaryScreenReceiver* primaryReceiver) :
CPrimaryScreen(receiver),
m_receiver(primaryReceiver),
m_is95Family(CArchMiscWindows::isWindows95Family()),
m_threadID(0),
m_window(NULL),
m_mark(0),
m_markReceived(0)
{
assert(m_receiver != NULL);
// load the hook library
m_hookLibrary = LoadLibrary("synrgyhk");
if (m_hookLibrary == NULL) {
LOG((CLOG_ERR "Failed to load hook library; synrgyhk.dll is missing"));
throw XScreenOpenFailure();
}
m_setSides = (SetSidesFunc)GetProcAddress(m_hookLibrary, "setSides");
m_setZone = (SetZoneFunc)GetProcAddress(m_hookLibrary, "setZone");
m_setRelay = (SetRelayFunc)GetProcAddress(m_hookLibrary, "setRelay");
m_install = (InstallFunc)GetProcAddress(m_hookLibrary, "install");
m_uninstall = (UninstallFunc)GetProcAddress(m_hookLibrary, "uninstall");
m_init = (InitFunc)GetProcAddress(m_hookLibrary, "init");
m_cleanup = (CleanupFunc)GetProcAddress(m_hookLibrary, "cleanup");
if (m_setSides == NULL ||
m_setZone == NULL ||
m_setRelay == NULL ||
m_install == NULL ||
m_uninstall == NULL ||
m_init == NULL ||
m_cleanup == NULL) {
LOG((CLOG_ERR "Invalid hook library; use a newer synrgyhk.dll"));
FreeLibrary(m_hookLibrary);
throw XScreenOpenFailure();
}
// create screen
m_screen = new CMSWindowsScreen(receiver, this);
}
CMSWindowsPrimaryScreen::~CMSWindowsPrimaryScreen()
{
assert(m_hookLibrary != NULL);
assert(m_window == NULL);
delete m_screen;
FreeLibrary(m_hookLibrary);
}
void
CMSWindowsPrimaryScreen::reconfigure(UInt32 activeSides)
{
m_setSides(activeSides);
}
void
CMSWindowsPrimaryScreen::warpCursor(SInt32 x, SInt32 y)
{
// warp mouse
warpCursorNoFlush(x, y);
// remove all input events before and including warp
MSG msg;
while (PeekMessage(&msg, NULL, SYNERGY_MSG_INPUT_FIRST,
SYNERGY_MSG_INPUT_LAST, PM_REMOVE)) {
// do nothing
}
// save position as last position
m_x = x;
m_y = y;
}
void
CMSWindowsPrimaryScreen::resetOptions()
{
// no options
}
void
CMSWindowsPrimaryScreen::setOptions(const COptionsList& /*options*/)
{
// no options
}
UInt32
CMSWindowsPrimaryScreen::addOneShotTimer(double timeout)
{
return m_screen->addOneShotTimer(timeout);
}
KeyModifierMask
CMSWindowsPrimaryScreen::getToggleMask() const
{
KeyModifierMask mask = 0;
if (isActive()) {
// get key state
if ((m_keys[VK_CAPITAL] & 0x01) != 0)
mask |= KeyModifierCapsLock;
if ((m_keys[VK_NUMLOCK] & 0x01) != 0)
mask |= KeyModifierNumLock;
if ((m_keys[VK_SCROLL] & 0x01) != 0)
mask |= KeyModifierScrollLock;
}
else {
// show the window, but make it very small. we must do this
// because GetKeyState() reports the key state according to
// processed messages and until the window is visible the
// system won't update the state of the toggle keys reported
// by that function. unfortunately, this slows this method
// down significantly and, for some reason i don't understand,
// causes everything on the screen to redraw.
if (m_window != NULL) {
MoveWindow(m_window, 1, 1, 1, 1, FALSE);
const_cast<CMSWindowsPrimaryScreen*>(this)->showWindow();
}
// get key state
if ((GetKeyState(VK_CAPITAL) & 0x01) != 0)
mask |= KeyModifierCapsLock;
if ((GetKeyState(VK_NUMLOCK) & 0x01) != 0)
mask |= KeyModifierNumLock;
if ((GetKeyState(VK_SCROLL) & 0x01) != 0)
mask |= KeyModifierScrollLock;
// make the window hidden again and restore its size
if (m_window != NULL) {
const_cast<CMSWindowsPrimaryScreen*>(this)->hideWindow();
SInt32 x, y, w, h;
m_screen->getShape(x, y, w, h);
MoveWindow(m_window, x, y, w, h, FALSE);
}
}
return mask;
}
bool
CMSWindowsPrimaryScreen::isLockedToScreen() const
{
// virtual key table. the table defines the virtual keys that are
// mapped to something (including mouse buttons, OEM and kanji keys
// but not unassigned or undefined keys).
static const UInt32 s_mappedKeys[] = {
0xfbff331e,
0x03ffffff,
0x3ffffffe,
0xffffffff,
0x000300ff,
0xfc000000,
0xf8000001,
0x7ffffe5f
};
// check each key. note that we cannot use GetKeyboardState() here
// since it reports the state of keys according to key messages
// that have been pulled off the queue. in general, we won't get
// these key messages because they're not for our window. if any
// key (or mouse button) is down then we're locked to the screen.
if (isActive()) {
// use shadow keyboard state in m_keys
for (UInt32 i = 0; i < 256; ++i) {
if ((m_keys[i] & 0x80) != 0) {
LOG((CLOG_DEBUG "locked by \"%s\"", g_vkToName[i]));
return true;
}
}
}
else {
for (UInt32 i = 0; i < 256 / 32; ++i) {
for (UInt32 b = 1, j = 0; j < 32; b <<= 1, ++j) {
if ((s_mappedKeys[i] & b) != 0) {
if (GetAsyncKeyState(i * 32 + j) < 0) {
LOG((CLOG_DEBUG "locked by \"%s\"", g_vkToName[i * 32 + j]));
return true;
}
}
}
}
}
// not locked
return false;
}
IScreen*
CMSWindowsPrimaryScreen::getScreen() const
{
return m_screen;
}
void
CMSWindowsPrimaryScreen::onScreensaver(bool activated)
{
m_receiver->onScreensaver(activated);
}
bool
CMSWindowsPrimaryScreen::onPreDispatch(const CEvent* event)
{
assert(event != NULL);
const MSG* msg = &event->m_msg;
// check if windows key is up but we think it's down. if so then
// synthesize a key release for it. we have to do this because
// if the user presses and releases a windows key without pressing
// any other key when its down then windows will eat the key
// release. if we don't detect that an synthesize the release
// then the user will be locked to the screen and the client won't
// take the usual windows key release action (which on windows is
// to show the start menu).
//
// we can use GetKeyState() to check the state of the windows keys
// because, event though the key release is not reported to us,
// the event is processed and the keyboard state updated by the
// system. since the key could go up at any time we'll check the
// state on every event. only check on windows 95 family since
// NT family reports the key release as usual. obviously we skip
// this if the event is for the windows key itself.
if (m_is95Family) {
if ((m_keys[VK_LWIN] & 0x80) != 0 &&
(GetAsyncKeyState(VK_LWIN) & 0x8000) == 0 &&
!(msg->message == SYNERGY_MSG_KEY && msg->wParam == VK_LWIN)) {
// compute appropriate parameters for fake event
WPARAM wParam = VK_LWIN;
LPARAM lParam = 0xc1000000;
lParam |= (0x00ff0000 & (MapVirtualKey(wParam, 0) << 24));
// process as if it were a key up
KeyModifierMask mask;
const KeyID key = mapKey(wParam, lParam, &mask);
LOG((CLOG_DEBUG1 "event: fake key release key=%d mask=0x%04x", key, mask));
m_receiver->onKeyUp(key, mask);
updateKey(wParam, false);
}
if ((m_keys[VK_RWIN] & 0x80) != 0 &&
(GetAsyncKeyState(VK_RWIN) & 0x8000) == 0 &&
!(msg->message == SYNERGY_MSG_KEY && msg->wParam == VK_RWIN)) {
// compute appropriate parameters for fake event
WPARAM wParam = VK_RWIN;
LPARAM lParam = 0xc1000000;
lParam |= (0x00ff0000 & (MapVirtualKey(wParam, 0) << 24));
// process as if it were a key up
KeyModifierMask mask;
const KeyID key = mapKey(wParam, lParam, &mask);
LOG((CLOG_DEBUG1 "event: fake key release key=%d mask=0x%04x", key, mask));
m_receiver->onKeyUp(key, mask);
updateKey(wParam, false);
}
}
// handle event
const MSG* msg = &event->m_msg;
switch (msg->message) {
case SYNERGY_MSG_MARK:
m_markReceived = msg->wParam;
return true;
case SYNERGY_MSG_KEY:
// ignore message if posted prior to last mark change
if (!ignore()) {
KeyModifierMask mask;
const KeyID key = mapKey(msg->wParam, msg->lParam, &mask);
if (key != kKeyNone) {
if ((msg->lParam & 0x80000000) == 0) {
// key press
const bool wasDown = ((msg->lParam & 0x40000000) != 0);
const SInt32 repeat = (SInt32)(msg->lParam & 0xffff);
if (repeat >= 2 || wasDown) {
LOG((CLOG_DEBUG1 "event: key repeat key=%d mask=0x%04x count=%d", key, mask, repeat));
m_receiver->onKeyRepeat(key, mask, repeat);
}
else {
LOG((CLOG_DEBUG1 "event: key press key=%d mask=0x%04x", key, mask));
m_receiver->onKeyDown(key, mask);
}
// update key state
updateKey(msg->wParam, true);
}
else {
// key release. if the key isn't down according to
// our table then we never got the key press event
// for it. if it's not a modifier key then we'll
// synthesize the press first. only do this on
// the windows 95 family, which eats certain special
// keys like alt+tab, ctrl+esc, etc.
if (m_is95Family && !isModifier(msg->wParam) &&
(m_keys[msg->wParam] & 0x80) == 0) {
LOG((CLOG_DEBUG1 "event: fake key press key=%d mask=0x%04x", key, mask));
m_receiver->onKeyDown(key, mask);
updateKey(msg->wParam, true);
}
// do key up
LOG((CLOG_DEBUG1 "event: key release key=%d mask=0x%04x", key, mask));
m_receiver->onKeyUp(key, mask);
// update key state
updateKey(msg->wParam, false);
}
}
else {
LOG((CLOG_DEBUG2 "event: cannot map key wParam=%d lParam=0x%08x", msg->wParam, msg->lParam));
}
}
return true;
case SYNERGY_MSG_MOUSE_BUTTON:
// ignore message if posted prior to last mark change
if (!ignore()) {
static const int s_vkButton[] = {
0, // kButtonNone
VK_LBUTTON, // kButtonLeft, etc.
VK_MBUTTON,
VK_RBUTTON
};
const ButtonID button = mapButton(msg->wParam);
switch (msg->wParam) {
case WM_LBUTTONDOWN:
case WM_MBUTTONDOWN:
case WM_RBUTTONDOWN:
LOG((CLOG_DEBUG1 "event: button press button=%d", button));
if (button != kButtonNone) {
m_receiver->onMouseDown(button);
m_keys[s_vkButton[button]] |= 0x80;
}
break;
case WM_LBUTTONUP:
case WM_MBUTTONUP:
case WM_RBUTTONUP:
LOG((CLOG_DEBUG1 "event: button release button=%d", button));
if (button != kButtonNone) {
m_receiver->onMouseUp(button);
m_keys[s_vkButton[button]] &= ~0x80;
}
break;
}
}
return true;
case SYNERGY_MSG_MOUSE_WHEEL:
// ignore message if posted prior to last mark change
if (!ignore()) {
LOG((CLOG_DEBUG1 "event: button wheel delta=%d %d", msg->wParam, msg->lParam));
m_receiver->onMouseWheel(msg->wParam);
}
return true;
case SYNERGY_MSG_PRE_WARP:
{
// save position to compute delta of next motion
m_x = static_cast<SInt32>(msg->wParam);
m_y = static_cast<SInt32>(msg->lParam);
// we warped the mouse. discard events until we find the
// matching post warp event. see warpCursorNoFlush() for
// where the events are sent. we discard the matching
// post warp event and can be sure we've skipped the warp
// event.
MSG msg;
do {
GetMessage(&msg, NULL, SYNERGY_MSG_MOUSE_MOVE,
SYNERGY_MSG_POST_WARP);
} while (msg.message != SYNERGY_MSG_POST_WARP);
return true;
}
case SYNERGY_MSG_POST_WARP:
LOG((CLOG_WARN "unmatched post warp"));
return true;
case SYNERGY_MSG_MOUSE_MOVE:
// ignore message if posted prior to last mark change
if (!ignore()) {
// compute motion delta (relative to the last known
// mouse position)
SInt32 x = static_cast<SInt32>(msg->wParam) - m_x;
SInt32 y = static_cast<SInt32>(msg->lParam) - m_y;
// save position to compute delta of next motion
m_x = static_cast<SInt32>(msg->wParam);
m_y = static_cast<SInt32>(msg->lParam);
if (!isActive()) {
// motion on primary screen
if (x != 0 || y != 0) {
m_receiver->onMouseMovePrimary(m_x, m_y);
}
}
else {
// motion on secondary screen. warp mouse back to
// center.
if (x != 0 || y != 0) {
// back to center
warpCursorNoFlush(m_xCenter, m_yCenter);
// examine the motion. if it's about the distance
// from the center of the screen to an edge then
// it's probably a bogus motion that we want to
// ignore (see warpCursorNoFlush() for a further
// description).
static SInt32 bogusZoneSize = 10;
SInt32 x0, y0, w0, h0;
m_screen->getShape(x0, y0, w0, h0);
if (-x + bogusZoneSize > m_xCenter - x0 ||
x + bogusZoneSize > x0 + w0 - m_xCenter ||
-y + bogusZoneSize > m_yCenter - y0 ||
y + bogusZoneSize > y0 + h0 - m_yCenter) {
LOG((CLOG_DEBUG "dropped bogus motion %+d,%+d", x, y));
}
else {
// send motion
m_receiver->onMouseMoveSecondary(x, y);
}
}
}
}
return true;
}
return false;
}
bool
CMSWindowsPrimaryScreen::onEvent(CEvent* event)
{
assert(event != NULL);
const MSG& msg = event->m_msg;
switch (msg.message) {
case WM_DISPLAYCHANGE:
// recompute center pixel of primary screen
m_screen->getCursorCenter(m_xCenter, m_yCenter);
// warp mouse to center if active
if (isActive()) {
warpCursorToCenter();
}
// tell hook about resize if not active
else {
SInt32 x, y, w, h;
m_screen->getShape(x, y, w, h);
m_setZone(x, y, w, h, getJumpZoneSize());
}
return true;
}
return false;
}
void
CMSWindowsPrimaryScreen::onOneShotTimerExpired(UInt32 id)
{
m_receiver->onOneShotTimerExpired(id);
}
SInt32
CMSWindowsPrimaryScreen::getJumpZoneSize() const
{
return 1;
}
void
CMSWindowsPrimaryScreen::postCreateWindow(HWND window)
{
// save window
m_window = window;
// install hooks
m_install();
// resize window
// note -- we use a fullscreen window to grab input. it should
// be possible to use a 1x1 window but i've run into problems
// with losing keyboard input (focus?) in that case.
// unfortunately, hiding the full screen window (when entering
// the screen) causes all other windows to redraw.
SInt32 x, y, w, h;
m_screen->getShape(x, y, w, h);
MoveWindow(m_window, x, y, w, h, FALSE);
if (isActive()) {
// hide the cursor
showWindow();
}
else {
// watch jump zones
m_setRelay(false);
// all messages prior to now are invalid
nextMark();
}
}
void
CMSWindowsPrimaryScreen::preDestroyWindow(HWND)
{
// hide the window if it's visible
if (isActive()) {
hideWindow();
}
// uninstall hooks
m_uninstall();
}
void
CMSWindowsPrimaryScreen::onPreMainLoop()
{
// must call mainLoop() from same thread as open()
assert(m_threadID == GetCurrentThreadId());
assert(m_window != NULL);
}
void
CMSWindowsPrimaryScreen::onPreOpen()
{
assert(m_window == NULL);
// initialize hook library
m_threadID = GetCurrentThreadId();
if (m_init(m_threadID) == 0) {
LOG((CLOG_ERR "Cannot initialize hook library; is synergy already running?"));
throw XScreenOpenFailure();
}
}
void
CMSWindowsPrimaryScreen::onPostOpen()
{
// get cursor info
m_screen->getCursorPos(m_x, m_y);
m_screen->getCursorCenter(m_xCenter, m_yCenter);
// set jump zones
SInt32 x, y, w, h;
m_screen->getShape(x, y, w, h);
m_setZone(x, y, w, h, getJumpZoneSize());
// initialize marks
m_mark = 0;
m_markReceived = 0;
nextMark();
}
void
CMSWindowsPrimaryScreen::onPostClose()
{
m_cleanup();
m_threadID = 0;
}
void
CMSWindowsPrimaryScreen::onPreEnter()
{
assert(m_window != NULL);
// enable ctrl+alt+del, alt+tab, etc
if (m_is95Family) {
DWORD dummy = 0;
SystemParametersInfo(SPI_SETSCREENSAVERRUNNING, FALSE, &dummy, 0);
}
// watch jump zones
m_setRelay(false);
}
void
CMSWindowsPrimaryScreen::onPostEnter()
{
// all messages prior to now are invalid
nextMark();
}
void
CMSWindowsPrimaryScreen::onPreLeave()
{
assert(m_window != NULL);
// all messages prior to now are invalid
nextMark();
}
void
CMSWindowsPrimaryScreen::onPostLeave(bool success)
{
if (success) {
// relay all mouse and keyboard events
m_setRelay(true);
// disable ctrl+alt+del, alt+tab, etc
if (m_is95Family) {
DWORD dummy = 0;
SystemParametersInfo(SPI_SETSCREENSAVERRUNNING, TRUE, &dummy, 0);
}
}
}
void
CMSWindowsPrimaryScreen::createWindow()
{
// open the desktop and the window
m_window = m_screen->openDesktop();
if (m_window == NULL) {
throw XScreenOpenFailure();
}
// note -- we use a fullscreen window to grab input. it should
// be possible to use a 1x1 window but i've run into problems
// with losing keyboard input (focus?) in that case.
// unfortunately, hiding the full screen window (when entering
// the scren causes all other windows to redraw).
SInt32 x, y, w, h;
m_screen->getShape(x, y, w, h);
MoveWindow(m_window, x, y, w, h, FALSE);
}
void
CMSWindowsPrimaryScreen::destroyWindow()
{
// close the desktop and the window
m_screen->closeDesktop();
m_window = NULL;
}
bool
CMSWindowsPrimaryScreen::showWindow()
{
// remember the active window before we leave. GetActiveWindow()
// will only return the active window for the thread's queue (i.e.
// our app) but we need the globally active window. get that by
// attaching input to the foreground window's thread then calling
// GetActiveWindow() and then detaching our input.
m_lastActiveWindow = NULL;
m_lastForegroundWindow = GetForegroundWindow();
m_lastActiveThread = GetWindowThreadProcessId(
m_lastForegroundWindow, NULL);
DWORD myThread = GetCurrentThreadId();
if (m_lastActiveThread != 0) {
if (myThread != m_lastActiveThread) {
if (AttachThreadInput(myThread, m_lastActiveThread, TRUE)) {
m_lastActiveWindow = GetActiveWindow();
AttachThreadInput(myThread, m_lastActiveThread, FALSE);
}
}
}
// show our window
ShowWindow(m_window, SW_SHOW);
// force our window to the foreground. this is necessary to
// capture input but is complicated by microsoft's misguided
// attempt to prevent applications from changing the
// foreground window. (the user should be in control of that
// under normal circumstances but there are exceptions; the
// good folks at microsoft, after abusing the previously
// available ability to switch foreground tasks in many of
// their apps, changed the behavior to prevent it. maybe
// it was easier than fixing the applications.)
//
// anyway, simply calling SetForegroundWindow() doesn't work
// unless there is no foreground window or we already are the
// foreground window. so we AttachThreadInput() to the
// foreground process then call SetForegroundWindow(); that
// makes Windows think the foreground process changed the
// foreground window which is allowed since the foreground
// is "voluntarily" yielding control. then we unattach the
// thread input and go about our business.
//
// unfortunately, this still doesn't work for console windows
// on the windows 95 family. if a console is the foreground
// app on the server when the user leaves the server screen
// then the keyboard will not be captured by synergy.
if (m_lastActiveThread != myThread) {
if (m_lastActiveThread != 0) {
AttachThreadInput(myThread, m_lastActiveThread, TRUE);
}
SetForegroundWindow(m_window);
if (m_lastActiveThread != 0) {
AttachThreadInput(myThread, m_lastActiveThread, FALSE);
}
}
// get keyboard input and capture mouse
SetActiveWindow(m_window);
SetFocus(m_window);
SetCapture(m_window);
return true;
}
void
CMSWindowsPrimaryScreen::hideWindow()
{
// restore the active window and hide our window. we can only set
// the active window for another thread if we first attach our input
// to that thread.
ReleaseCapture();
if (m_lastActiveWindow != NULL) {
DWORD myThread = GetCurrentThreadId();
if (AttachThreadInput(myThread, m_lastActiveThread, TRUE)) {
// FIXME -- shouldn't raise window if X-Mouse is enabled
// but i have no idea how to do that or check if enabled.
SetActiveWindow(m_lastActiveWindow);
AttachThreadInput(myThread, m_lastActiveThread, FALSE);
}
}
// hide the window. do not wait for it, though, since ShowWindow()
// waits for the event loop to process the show-window event, but
// that thread may need to lock the mutex that this thread has
// already locked. in particular, that deadlock will occur unless
// we use the asynchronous version of show window when a client
// disconnects: thread A will lock the mutex and enter the primary
// screen which warps the mouse and calls this method while thread B
// will handle the mouse warp event and call methods that try to
// lock the mutex. thread A owns the mutex and is waiting for the
// event loop, thread B owns the event loop and is waiting for the
// mutex causing deadlock.
ShowWindowAsync(m_window, SW_HIDE);
}
void
CMSWindowsPrimaryScreen::warpCursorToCenter()
{
warpCursor(m_xCenter, m_yCenter);
}
void
CMSWindowsPrimaryScreen::warpCursorNoFlush(SInt32 x, SInt32 y)
{
// send an event that we can recognize before the mouse warp
PostThreadMessage(m_threadID, SYNERGY_MSG_PRE_WARP, x, y);
// warp mouse. hopefully this inserts a mouse motion event
// between the previous message and the following message.
SetCursorPos(x, y);
// yield the CPU. there's a race condition when warping:
// a hardware mouse event occurs
// the mouse hook is not called because that process doesn't have the CPU
// we send PRE_WARP, SetCursorPos(), send POST_WARP
// we process all of those events and update m_x, m_y
// we finish our time slice
// the hook is called
// the hook sends us a mouse event from the pre-warp position
// we get the CPU
// we compute a bogus warp
// we need the hook to process all mouse events that occur
// before we warp before we do the warp but i'm not sure how
// to guarantee that. yielding the CPU here may reduce the
// chance of undesired behavior. we'll also check for very
// large motions that look suspiciously like about half width
// or height of the screen.
ARCH->sleep(0.0);
// send an event that we can recognize after the mouse warp
PostThreadMessage(m_threadID, SYNERGY_MSG_POST_WARP, 0, 0);
}
void
CMSWindowsPrimaryScreen::nextMark()
{
// next mark
++m_mark;
// mark point in message queue where the mark was changed
PostThreadMessage(m_threadID, SYNERGY_MSG_MARK, m_mark, 0);
}
bool
CMSWindowsPrimaryScreen::ignore() const
{
return (m_mark != m_markReceived);
}
// map virtual keys to synergy key enumeration. use extended keyboard
// bit to distinguish some keys.
static const KeyID g_virtualKey[][2] =
{
/* 0x00 */ kKeyNone, kKeyNone, // reserved
/* 0x01 */ kKeyNone, kKeyNone, // VK_LBUTTON
/* 0x02 */ kKeyNone, kKeyNone, // VK_RBUTTON
/* 0x03 */ kKeyNone, kKeyBreak, // VK_CANCEL
/* 0x04 */ kKeyNone, kKeyNone, // VK_MBUTTON
/* 0x05 */ kKeyNone, kKeyNone, // undefined
/* 0x06 */ kKeyNone, kKeyNone, // undefined
/* 0x07 */ kKeyNone, kKeyNone, // undefined
/* 0x08 */ kKeyBackSpace, kKeyNone, // VK_BACK
/* 0x09 */ kKeyTab, kKeyNone, // VK_TAB
/* 0x0a */ kKeyNone, kKeyNone, // undefined
/* 0x0b */ kKeyNone, kKeyNone, // undefined
/* 0x0c */ kKeyClear, kKeyClear, // VK_CLEAR
/* 0x0d */ kKeyReturn, kKeyKP_Enter, // VK_RETURN
/* 0x0e */ kKeyNone, kKeyNone, // undefined
/* 0x0f */ kKeyNone, kKeyNone, // undefined
/* 0x10 */ kKeyShift_L, kKeyShift_R, // VK_SHIFT
/* 0x11 */ kKeyControl_L, kKeyControl_R, // VK_CONTROL
/* 0x12 */ kKeyAlt_L, kKeyAlt_R, // VK_MENU
/* 0x13 */ kKeyPause, kKeyNone, // VK_PAUSE
/* 0x14 */ kKeyCapsLock, kKeyNone, // VK_CAPITAL
/* 0x15 */ kKeyNone, kKeyNone, // VK_KANA
/* 0x16 */ kKeyNone, kKeyNone, // VK_HANGUL
/* 0x17 */ kKeyNone, kKeyNone, // VK_JUNJA
/* 0x18 */ kKeyNone, kKeyNone, // VK_FINAL
/* 0x19 */ kKeyNone, kKeyNone, // VK_KANJI
/* 0x1a */ kKeyNone, kKeyNone, // undefined
/* 0x1b */ kKeyEscape, kKeyNone, // VK_ESCAPE
/* 0x1c */ kKeyNone, kKeyNone, // VK_CONVERT
/* 0x1d */ kKeyNone, kKeyNone, // VK_NONCONVERT
/* 0x1e */ kKeyNone, kKeyNone, // VK_ACCEPT
/* 0x1f */ kKeyNone, kKeyNone, // VK_MODECHANGE
/* 0x20 */ 0x0020, kKeyNone, // VK_SPACE
/* 0x21 */ kKeyKP_PageUp, kKeyPageUp, // VK_PRIOR
/* 0x22 */ kKeyKP_PageDown, kKeyPageDown, // VK_NEXT
/* 0x23 */ kKeyKP_End, kKeyEnd, // VK_END
/* 0x24 */ kKeyKP_Home, kKeyHome, // VK_HOME
/* 0x25 */ kKeyKP_Left, kKeyLeft, // VK_LEFT
/* 0x26 */ kKeyKP_Up, kKeyUp, // VK_UP
/* 0x27 */ kKeyKP_Right, kKeyRight, // VK_RIGHT
/* 0x28 */ kKeyKP_Down, kKeyDown, // VK_DOWN
/* 0x29 */ kKeySelect, kKeySelect, // VK_SELECT
/* 0x2a */ kKeyNone, kKeyNone, // VK_PRINT
/* 0x2b */ kKeyExecute, kKeyExecute, // VK_EXECUTE
/* 0x2c */ kKeyPrint, kKeyPrint, // VK_SNAPSHOT
/* 0x2d */ kKeyKP_Insert, kKeyInsert, // VK_INSERT
/* 0x2e */ kKeyKP_Delete, kKeyDelete, // VK_DELETE
/* 0x2f */ kKeyHelp, kKeyHelp, // VK_HELP
/* 0x30 */ kKeyNone, kKeyNone, // VK_0
/* 0x31 */ kKeyNone, kKeyNone, // VK_1
/* 0x32 */ kKeyNone, kKeyNone, // VK_2
/* 0x33 */ kKeyNone, kKeyNone, // VK_3
/* 0x34 */ kKeyNone, kKeyNone, // VK_4
/* 0x35 */ kKeyNone, kKeyNone, // VK_5
/* 0x36 */ kKeyNone, kKeyNone, // VK_6
/* 0x37 */ kKeyNone, kKeyNone, // VK_7
/* 0x38 */ kKeyNone, kKeyNone, // VK_8
/* 0x39 */ kKeyNone, kKeyNone, // VK_9
/* 0x3a */ kKeyNone, kKeyNone, // undefined
/* 0x3b */ kKeyNone, kKeyNone, // undefined
/* 0x3c */ kKeyNone, kKeyNone, // undefined
/* 0x3d */ kKeyNone, kKeyNone, // undefined
/* 0x3e */ kKeyNone, kKeyNone, // undefined
/* 0x3f */ kKeyNone, kKeyNone, // undefined
/* 0x40 */ kKeyNone, kKeyNone, // undefined
/* 0x41 */ kKeyNone, kKeyNone, // VK_A
/* 0x42 */ kKeyNone, kKeyNone, // VK_B
/* 0x43 */ kKeyNone, kKeyNone, // VK_C
/* 0x44 */ kKeyNone, kKeyNone, // VK_D
/* 0x45 */ kKeyNone, kKeyNone, // VK_E
/* 0x46 */ kKeyNone, kKeyNone, // VK_F
/* 0x47 */ kKeyNone, kKeyNone, // VK_G
/* 0x48 */ kKeyNone, kKeyNone, // VK_H
/* 0x49 */ kKeyNone, kKeyNone, // VK_I
/* 0x4a */ kKeyNone, kKeyNone, // VK_J
/* 0x4b */ kKeyNone, kKeyNone, // VK_K
/* 0x4c */ kKeyNone, kKeyNone, // VK_L
/* 0x4d */ kKeyNone, kKeyNone, // VK_M
/* 0x4e */ kKeyNone, kKeyNone, // VK_N
/* 0x4f */ kKeyNone, kKeyNone, // VK_O
/* 0x50 */ kKeyNone, kKeyNone, // VK_P
/* 0x51 */ kKeyNone, kKeyNone, // VK_Q
/* 0x52 */ kKeyNone, kKeyNone, // VK_R
/* 0x53 */ kKeyNone, kKeyNone, // VK_S
/* 0x54 */ kKeyNone, kKeyNone, // VK_T
/* 0x55 */ kKeyNone, kKeyNone, // VK_U
/* 0x56 */ kKeyNone, kKeyNone, // VK_V
/* 0x57 */ kKeyNone, kKeyNone, // VK_W
/* 0x58 */ kKeyNone, kKeyNone, // VK_X
/* 0x59 */ kKeyNone, kKeyNone, // VK_Y
/* 0x5a */ kKeyNone, kKeyNone, // VK_Z
/* 0x5b */ kKeyNone, kKeySuper_L, // VK_LWIN
/* 0x5c */ kKeyNone, kKeySuper_R, // VK_RWIN
/* 0x5d */ kKeyMenu, kKeyMenu, // VK_APPS
/* 0x5e */ kKeyNone, kKeyNone, // undefined
/* 0x5f */ kKeyNone, kKeyNone, // undefined
/* 0x60 */ kKeyKP_0, kKeyNone, // VK_NUMPAD0
/* 0x61 */ kKeyKP_1, kKeyNone, // VK_NUMPAD1
/* 0x62 */ kKeyKP_2, kKeyNone, // VK_NUMPAD2
/* 0x63 */ kKeyKP_3, kKeyNone, // VK_NUMPAD3
/* 0x64 */ kKeyKP_4, kKeyNone, // VK_NUMPAD4
/* 0x65 */ kKeyKP_5, kKeyNone, // VK_NUMPAD5
/* 0x66 */ kKeyKP_6, kKeyNone, // VK_NUMPAD6
/* 0x67 */ kKeyKP_7, kKeyNone, // VK_NUMPAD7
/* 0x68 */ kKeyKP_8, kKeyNone, // VK_NUMPAD8
/* 0x69 */ kKeyKP_9, kKeyNone, // VK_NUMPAD9
/* 0x6a */ kKeyKP_Multiply, kKeyNone, // VK_MULTIPLY
/* 0x6b */ kKeyKP_Add, kKeyNone, // VK_ADD
/* 0x6c */ kKeyKP_Separator,kKeyKP_Separator,// VK_SEPARATOR
/* 0x6d */ kKeyKP_Subtract, kKeyNone, // VK_SUBTRACT
/* 0x6e */ kKeyKP_Decimal, kKeyNone, // VK_DECIMAL
/* 0x6f */ kKeyNone, kKeyKP_Divide, // VK_DIVIDE
/* 0x70 */ kKeyF1, kKeyNone, // VK_F1
/* 0x71 */ kKeyF2, kKeyNone, // VK_F2
/* 0x72 */ kKeyF3, kKeyNone, // VK_F3
/* 0x73 */ kKeyF4, kKeyNone, // VK_F4
/* 0x74 */ kKeyF5, kKeyNone, // VK_F5
/* 0x75 */ kKeyF6, kKeyNone, // VK_F6
/* 0x76 */ kKeyF7, kKeyNone, // VK_F7
/* 0x77 */ kKeyF8, kKeyNone, // VK_F8
/* 0x78 */ kKeyF9, kKeyNone, // VK_F9
/* 0x79 */ kKeyF10, kKeyNone, // VK_F10
/* 0x7a */ kKeyF11, kKeyNone, // VK_F11
/* 0x7b */ kKeyF12, kKeyNone, // VK_F12
/* 0x7c */ kKeyF13, kKeyF13, // VK_F13
/* 0x7d */ kKeyF14, kKeyF14, // VK_F14
/* 0x7e */ kKeyF15, kKeyF15, // VK_F15
/* 0x7f */ kKeyF16, kKeyF16, // VK_F16
/* 0x80 */ kKeyF17, kKeyF17, // VK_F17
/* 0x81 */ kKeyF18, kKeyF18, // VK_F18
/* 0x82 */ kKeyF19, kKeyF19, // VK_F19
/* 0x83 */ kKeyF20, kKeyF20, // VK_F20
/* 0x84 */ kKeyF21, kKeyF21, // VK_F21
/* 0x85 */ kKeyF22, kKeyF22, // VK_F22
/* 0x86 */ kKeyF23, kKeyF23, // VK_F23
/* 0x87 */ kKeyF24, kKeyF24, // VK_F24
/* 0x88 */ kKeyNone, kKeyNone, // unassigned
/* 0x89 */ kKeyNone, kKeyNone, // unassigned
/* 0x8a */ kKeyNone, kKeyNone, // unassigned
/* 0x8b */ kKeyNone, kKeyNone, // unassigned
/* 0x8c */ kKeyNone, kKeyNone, // unassigned
/* 0x8d */ kKeyNone, kKeyNone, // unassigned
/* 0x8e */ kKeyNone, kKeyNone, // unassigned
/* 0x8f */ kKeyNone, kKeyNone, // unassigned
/* 0x90 */ kKeyNumLock, kKeyNumLock, // VK_NUMLOCK
/* 0x91 */ kKeyScrollLock, kKeyNone, // VK_SCROLL
/* 0x92 */ kKeyNone, kKeyNone, // unassigned
/* 0x93 */ kKeyNone, kKeyNone, // unassigned
/* 0x94 */ kKeyNone, kKeyNone, // unassigned
/* 0x95 */ kKeyNone, kKeyNone, // unassigned
/* 0x96 */ kKeyNone, kKeyNone, // unassigned
/* 0x97 */ kKeyNone, kKeyNone, // unassigned
/* 0x98 */ kKeyNone, kKeyNone, // unassigned
/* 0x99 */ kKeyNone, kKeyNone, // unassigned
/* 0x9a */ kKeyNone, kKeyNone, // unassigned
/* 0x9b */ kKeyNone, kKeyNone, // unassigned
/* 0x9c */ kKeyNone, kKeyNone, // unassigned
/* 0x9d */ kKeyNone, kKeyNone, // unassigned
/* 0x9e */ kKeyNone, kKeyNone, // unassigned
/* 0x9f */ kKeyNone, kKeyNone, // unassigned
/* 0xa0 */ kKeyShift_L, kKeyShift_L, // VK_LSHIFT
/* 0xa1 */ kKeyShift_R, kKeyShift_R, // VK_RSHIFT
/* 0xa2 */ kKeyControl_L, kKeyControl_L, // VK_LCONTROL
/* 0xa3 */ kKeyControl_R, kKeyControl_R, // VK_RCONTROL
/* 0xa4 */ kKeyAlt_L, kKeyAlt_L, // VK_LMENU
/* 0xa5 */ kKeyAlt_R, kKeyAlt_R, // VK_RMENU
/* 0xa6 */ kKeyNone, kKeyNone, // unassigned
/* 0xa7 */ kKeyNone, kKeyNone, // unassigned
/* 0xa8 */ kKeyNone, kKeyNone, // unassigned
/* 0xa9 */ kKeyNone, kKeyNone, // unassigned
/* 0xaa */ kKeyNone, kKeyNone, // unassigned
/* 0xab */ kKeyNone, kKeyNone, // unassigned
/* 0xac */ kKeyNone, kKeyNone, // unassigned
/* 0xad */ kKeyNone, kKeyNone, // unassigned
/* 0xae */ kKeyNone, kKeyNone, // unassigned
/* 0xaf */ kKeyNone, kKeyNone, // unassigned
/* 0xb0 */ kKeyNone, kKeyNone, // unassigned
/* 0xb1 */ kKeyNone, kKeyNone, // unassigned
/* 0xb2 */ kKeyNone, kKeyNone, // unassigned
/* 0xb3 */ kKeyNone, kKeyNone, // unassigned
/* 0xb4 */ kKeyNone, kKeyNone, // unassigned
/* 0xb5 */ kKeyNone, kKeyNone, // unassigned
/* 0xb6 */ kKeyNone, kKeyNone, // unassigned
/* 0xb7 */ kKeyNone, kKeyNone, // unassigned
/* 0xb8 */ kKeyNone, kKeyNone, // unassigned
/* 0xb9 */ kKeyNone, kKeyNone, // unassigned
/* 0xba */ kKeyNone, kKeyNone, // OEM specific
/* 0xbb */ kKeyNone, kKeyNone, // OEM specific
/* 0xbc */ kKeyNone, kKeyNone, // OEM specific
/* 0xbd */ kKeyNone, kKeyNone, // OEM specific
/* 0xbe */ kKeyNone, kKeyNone, // OEM specific
/* 0xbf */ kKeyNone, kKeyNone, // OEM specific
/* 0xc0 */ kKeyNone, kKeyNone, // OEM specific
/* 0xc1 */ kKeyNone, kKeyNone, // unassigned
/* 0xc2 */ kKeyNone, kKeyNone, // unassigned
/* 0xc3 */ kKeyNone, kKeyNone, // unassigned
/* 0xc4 */ kKeyNone, kKeyNone, // unassigned
/* 0xc5 */ kKeyNone, kKeyNone, // unassigned
/* 0xc6 */ kKeyNone, kKeyNone, // unassigned
/* 0xc7 */ kKeyNone, kKeyNone, // unassigned
/* 0xc8 */ kKeyNone, kKeyNone, // unassigned
/* 0xc9 */ kKeyNone, kKeyNone, // unassigned
/* 0xca */ kKeyNone, kKeyNone, // unassigned
/* 0xcb */ kKeyNone, kKeyNone, // unassigned
/* 0xcc */ kKeyNone, kKeyNone, // unassigned
/* 0xcd */ kKeyNone, kKeyNone, // unassigned
/* 0xce */ kKeyNone, kKeyNone, // unassigned
/* 0xcf */ kKeyNone, kKeyNone, // unassigned
/* 0xd0 */ kKeyNone, kKeyNone, // unassigned
/* 0xd1 */ kKeyNone, kKeyNone, // unassigned
/* 0xd2 */ kKeyNone, kKeyNone, // unassigned
/* 0xd3 */ kKeyNone, kKeyNone, // unassigned
/* 0xd4 */ kKeyNone, kKeyNone, // unassigned
/* 0xd5 */ kKeyNone, kKeyNone, // unassigned
/* 0xd6 */ kKeyNone, kKeyNone, // unassigned
/* 0xd7 */ kKeyNone, kKeyNone, // unassigned
/* 0xd8 */ kKeyNone, kKeyNone, // unassigned
/* 0xd9 */ kKeyNone, kKeyNone, // unassigned
/* 0xda */ kKeyNone, kKeyNone, // unassigned
/* 0xdb */ kKeyNone, kKeyNone, // OEM specific
/* 0xdc */ kKeyNone, kKeyNone, // OEM specific
/* 0xdd */ kKeyNone, kKeyNone, // OEM specific
/* 0xde */ kKeyNone, kKeyNone, // OEM specific
/* 0xdf */ kKeyNone, kKeyNone, // OEM specific
/* 0xe0 */ kKeyNone, kKeyNone, // OEM specific
/* 0xe1 */ kKeyNone, kKeyNone, // OEM specific
/* 0xe2 */ kKeyNone, kKeyNone, // OEM specific
/* 0xe3 */ kKeyNone, kKeyNone, // OEM specific
/* 0xe4 */ kKeyNone, kKeyNone, // OEM specific
/* 0xe5 */ kKeyNone, kKeyNone, // unassigned
/* 0xe6 */ kKeyNone, kKeyNone, // OEM specific
/* 0xe7 */ kKeyNone, kKeyNone, // unassigned
/* 0xe8 */ kKeyNone, kKeyNone, // unassigned
/* 0xe9 */ kKeyNone, kKeyNone, // OEM specific
/* 0xea */ kKeyNone, kKeyNone, // OEM specific
/* 0xeb */ kKeyNone, kKeyNone, // OEM specific
/* 0xec */ kKeyNone, kKeyNone, // OEM specific
/* 0xed */ kKeyNone, kKeyNone, // OEM specific
/* 0xee */ kKeyNone, kKeyNone, // OEM specific
/* 0xef */ kKeyNone, kKeyNone, // OEM specific
/* 0xf0 */ kKeyNone, kKeyNone, // OEM specific
/* 0xf1 */ kKeyNone, kKeyNone, // OEM specific
/* 0xf2 */ kKeyNone, kKeyNone, // OEM specific
/* 0xf3 */ kKeyNone, kKeyNone, // OEM specific
/* 0xf4 */ kKeyNone, kKeyNone, // OEM specific
/* 0xf5 */ kKeyNone, kKeyNone, // OEM specific
/* 0xf6 */ kKeyNone, kKeyNone, // VK_ATTN
/* 0xf7 */ kKeyNone, kKeyNone, // VK_CRSEL
/* 0xf8 */ kKeyNone, kKeyNone, // VK_EXSEL
/* 0xf9 */ kKeyNone, kKeyNone, // VK_EREOF
/* 0xfa */ kKeyNone, kKeyNone, // VK_PLAY
/* 0xfb */ kKeyNone, kKeyNone, // VK_ZOOM
/* 0xfc */ kKeyNone, kKeyNone, // reserved
/* 0xfd */ kKeyNone, kKeyNone, // VK_PA1
/* 0xfe */ kKeyNone, kKeyNone, // VK_OEM_CLEAR
/* 0xff */ kKeyNone, kKeyNone // reserved
};
KeyID
CMSWindowsPrimaryScreen::mapKey(
WPARAM vkCode,
LPARAM info,
KeyModifierMask* maskOut)
{
// note: known microsoft bugs
// Q72583 -- MapVirtualKey() maps keypad keys incorrectly
// 95,98: num pad vk code -> invalid scan code
// 95,98,NT4: num pad scan code -> bad vk code except
// SEPARATOR, MULTIPLY, SUBTRACT, ADD
assert(maskOut != NULL);
// map modifier key
KeyModifierMask mask = 0;
if (((m_keys[VK_LSHIFT] |
m_keys[VK_RSHIFT] |
m_keys[VK_SHIFT]) & 0x80) != 0) {
mask |= KeyModifierShift;
}
if (((m_keys[VK_LCONTROL] |
m_keys[VK_RCONTROL] |
m_keys[VK_CONTROL]) & 0x80) != 0) {
mask |= KeyModifierControl;
}
if ((m_keys[VK_RMENU] & 0x80) != 0) {
// right alt => AltGr on windows
mask |= KeyModifierModeSwitch;
}
else if (((m_keys[VK_LMENU] |
m_keys[VK_MENU]) & 0x80) != 0) {
mask |= KeyModifierAlt;
}
if (((m_keys[VK_LWIN] |
m_keys[VK_RWIN]) & 0x80) != 0) {
mask |= KeyModifierSuper;
}
if ((m_keys[VK_CAPITAL] & 0x01) != 0) {
mask |= KeyModifierCapsLock;
}
if ((m_keys[VK_NUMLOCK] & 0x01) != 0) {
mask |= KeyModifierNumLock;
}
if ((m_keys[VK_SCROLL] & 0x01) != 0) {
mask |= KeyModifierScrollLock;
}
// ctrl+alt => AltGr on windows
/* don't convert ctrl+alt to mode switch. if we do that then we can
* never send ctrl+alt+[key] from windows to some platform that
* doesn't treat ctrl+alt as mode switch (i.e. all other platforms).
* instead, let windows clients automatically treat ctrl+alt as
* AltGr and let other clients use ctrl+alt as is. the right alt
* key serves as a mode switch key.
if ((mask & (KeyModifierControl | KeyModifierAlt)) ==
(KeyModifierControl | KeyModifierAlt)) {
mask |= KeyModifierModeSwitch;
mask &= ~(KeyModifierControl | KeyModifierAlt);
}
*/
*maskOut = mask;
LOG((CLOG_DEBUG2 "key in vk=%d info=0x%08x mask=0x%04x", vkCode, info, mask));
// get the scan code and the extended keyboard flag
UINT scanCode = static_cast<UINT>((info & 0x00ff0000u) >> 16);
int extended = ((info & 0x01000000) == 0) ? 0 : 1;
LOG((CLOG_DEBUG1 "key vk=%d ext=%d scan=%d", vkCode, extended, scanCode));
// handle some keys via table lookup
KeyID id = g_virtualKey[vkCode][extended];
if (id != kKeyNone) {
return id;
}
// check for dead keys
if (MapVirtualKey(vkCode, 2) >= 0x8000) {
return kKeyMultiKey;
}
// save the control state then clear it. ToAscii() maps ctrl+letter
// to the corresponding control code and ctrl+backspace to delete.
// we don't want that translation so we clear the control modifier
// state. however, if we want to simulate AltGr (which is ctrl+alt)
// then we must not clear it.
BYTE lControl = m_keys[VK_LCONTROL];
BYTE rControl = m_keys[VK_RCONTROL];
BYTE control = m_keys[VK_CONTROL];
if ((mask & KeyModifierModeSwitch) == 0) {
m_keys[VK_LCONTROL] = 0;
m_keys[VK_RCONTROL] = 0;
m_keys[VK_CONTROL] = 0;
}
// convert to ascii
// FIXME -- support unicode
WORD ascii;
int result = ToAscii(vkCode, scanCode, m_keys, &ascii, 0);
// restore control state
m_keys[VK_LCONTROL] = lControl;
m_keys[VK_RCONTROL] = rControl;
m_keys[VK_CONTROL] = control;
// if result is less than zero then it was a dead key. that key
// is remembered by the keyboard which we don't want. remove it
// by calling ToAscii() again with arbitrary arguments.
if (result < 0) {
ToAscii(vkCode, scanCode, m_keys, &ascii, 0);
return kKeyMultiKey;
}
// if result is 1 then the key was succesfully converted
else if (result == 1) {
return static_cast<KeyID>(ascii & 0x00ff);
}
// if result is 2 then a previous dead key could not be composed.
// put the old dead key back.
else if (result == 2) {
// get the scan code of the dead key and the shift state
// required to generate it.
vkCode = VkKeyScan(static_cast<TCHAR>(ascii & 0x00ff));
// set shift state required to generate key
BYTE keys[256];
memset(keys, 0, sizeof(keys));
if (vkCode & 0x0100) {
keys[VK_SHIFT] = 0x80;
}
if (vkCode & 0x0200) {
keys[VK_CONTROL] = 0x80;
}
if (vkCode & 0x0400) {
keys[VK_MENU] = 0x80;
}
// strip shift state off of virtual key code
vkCode &= 0x00ff;
// get the scan code for the key
scanCode = MapVirtualKey(vkCode, 0);
// put it back
ToAscii(vkCode, scanCode, keys, &ascii, 0);
return kKeyMultiKey;
}
// cannot convert key
return kKeyNone;
}
ButtonID
CMSWindowsPrimaryScreen::mapButton(WPARAM button) const
{
switch (button) {
case WM_LBUTTONDOWN:
case WM_LBUTTONUP:
return kButtonLeft;
case WM_MBUTTONDOWN:
case WM_MBUTTONUP:
return kButtonMiddle;
case WM_RBUTTONDOWN:
case WM_RBUTTONUP:
return kButtonRight;
default:
return kButtonNone;
}
}
void
CMSWindowsPrimaryScreen::updateKeys()
{
// not using GetKeyboardState() because that doesn't seem to give
// up-to-date results. i don't know why that is or why GetKeyState()
// should give different results.
// clear key state
memset(m_keys, 0, sizeof(m_keys));
// we only care about the modifier key states. other keys and the
// mouse buttons should be up.
m_keys[VK_LSHIFT] = static_cast<BYTE>(GetKeyState(VK_LSHIFT) & 0x80);
m_keys[VK_RSHIFT] = static_cast<BYTE>(GetKeyState(VK_RSHIFT) & 0x80);
m_keys[VK_SHIFT] = static_cast<BYTE>(GetKeyState(VK_SHIFT) & 0x80);
m_keys[VK_LCONTROL] = static_cast<BYTE>(GetKeyState(VK_LCONTROL) & 0x80);
m_keys[VK_RCONTROL] = static_cast<BYTE>(GetKeyState(VK_RCONTROL) & 0x80);
m_keys[VK_CONTROL] = static_cast<BYTE>(GetKeyState(VK_CONTROL) & 0x80);
m_keys[VK_LMENU] = static_cast<BYTE>(GetKeyState(VK_LMENU) & 0x80);
m_keys[VK_RMENU] = static_cast<BYTE>(GetKeyState(VK_RMENU) & 0x80);
m_keys[VK_MENU] = static_cast<BYTE>(GetKeyState(VK_MENU) & 0x80);
m_keys[VK_LWIN] = static_cast<BYTE>(GetKeyState(VK_LWIN) & 0x80);
m_keys[VK_RWIN] = static_cast<BYTE>(GetKeyState(VK_RWIN) & 0x80);
m_keys[VK_APPS] = static_cast<BYTE>(GetKeyState(VK_APPS) & 0x80);
m_keys[VK_CAPITAL] = static_cast<BYTE>(GetKeyState(VK_CAPITAL));
m_keys[VK_NUMLOCK] = static_cast<BYTE>(GetKeyState(VK_NUMLOCK));
m_keys[VK_SCROLL] = static_cast<BYTE>(GetKeyState(VK_SCROLL));
}
void
CMSWindowsPrimaryScreen::updateKey(UINT vkCode, bool press)
{
if (press) {
switch (vkCode) {
case VK_LSHIFT:
case VK_RSHIFT:
case VK_SHIFT:
m_keys[vkCode] |= 0x80;
m_keys[VK_SHIFT] |= 0x80;
break;
case VK_LCONTROL:
case VK_RCONTROL:
case VK_CONTROL:
m_keys[vkCode] |= 0x80;
m_keys[VK_CONTROL] |= 0x80;
break;
case VK_LMENU:
case VK_RMENU:
case VK_MENU:
m_keys[vkCode] |= 0x80;
m_keys[VK_MENU] |= 0x80;
break;
case VK_CAPITAL:
case VK_NUMLOCK:
case VK_SCROLL:
// toggle keys
m_keys[vkCode] |= 0x80;
break;
default:
case VK_LWIN:
case VK_RWIN:
case VK_APPS:
m_keys[vkCode] |= 0x80;
break;
}
}
else {
switch (vkCode) {
case VK_LSHIFT:
case VK_RSHIFT:
case VK_SHIFT:
m_keys[vkCode] &= ~0x80;
if (((m_keys[VK_LSHIFT] | m_keys[VK_RSHIFT]) & 0x80) == 0) {
m_keys[VK_SHIFT] &= ~0x80;
}
break;
case VK_LCONTROL:
case VK_RCONTROL:
case VK_CONTROL:
m_keys[vkCode] &= ~0x80;
if (((m_keys[VK_LCONTROL] | m_keys[VK_RCONTROL]) & 0x80) == 0) {
m_keys[VK_CONTROL] &= ~0x80;
}
break;
case VK_LMENU:
case VK_RMENU:
case VK_MENU:
m_keys[vkCode] &= ~0x80;
if (((m_keys[VK_LMENU] | m_keys[VK_RMENU]) & 0x80) == 0) {
m_keys[VK_MENU] &= ~0x80;
}
break;
case VK_CAPITAL:
case VK_NUMLOCK:
case VK_SCROLL:
// toggle keys
m_keys[vkCode] &= ~0x80;
m_keys[vkCode] ^= 0x01;
break;
default:
case VK_LWIN:
case VK_RWIN:
case VK_APPS:
m_keys[vkCode] &= ~0x80;
break;
}
}
}
bool
CMSWindowsPrimaryScreen::isModifier(UINT vkCode) const
{
switch (vkCode) {
case VK_LSHIFT:
case VK_RSHIFT:
case VK_SHIFT:
case VK_LCONTROL:
case VK_RCONTROL:
case VK_CONTROL:
case VK_LMENU:
case VK_RMENU:
case VK_MENU:
case VK_CAPITAL:
case VK_NUMLOCK:
case VK_SCROLL:
case VK_LWIN:
case VK_RWIN:
return true;
default:
return false;
}
}
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