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barrier/server/CMSWindowsPrimaryScreen.cpp
crs cf71aec730 fixed handling of calling init() when a previous process did not 
call cleanup().  if that process still appears to exist then the
init() fails.  otherwise some cleanup is performed and the init()
proceeds.  a synergy server started while another is running will
now exit immediately without interfering the original server.
2002-07-18 17:03:10 +00:00

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#include "CMSWindowsPrimaryScreen.h"
#include "CMSWindowsScreen.h"
#include "IPrimaryScreenReceiver.h"
#include "CPlatform.h"
#include "XScreen.h"
#include "CLog.h"
#include <cstring>
//
// CMSWindowsPrimaryScreen
//
CMSWindowsPrimaryScreen::CMSWindowsPrimaryScreen(
IScreenReceiver* receiver,
IPrimaryScreenReceiver* primaryReceiver) :
CPrimaryScreen(receiver),
m_receiver(primaryReceiver),
m_is95Family(CPlatform::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"));
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"));
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;
}
KeyModifierMask
CMSWindowsPrimaryScreen::getToggleMask() const
{
KeyModifierMask mask = 0;
if ((GetKeyState(VK_CAPITAL) & 0x01) != 0)
mask |= KeyModifierCapsLock;
if ((GetKeyState(VK_NUMLOCK) & 0x01) != 0)
mask |= KeyModifierNumLock;
if ((GetKeyState(VK_SCROLL) & 0x01) != 0)
mask |= KeyModifierScrollLock;
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) {
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) {
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);
// 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 SInt32 repeat = (SInt32)(msg->lParam & 0xffff);
if (repeat >= 2) {
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
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
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);
// 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;
}
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::onPreRun()
{
// must call run() 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) {
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);
if (m_lastActiveThread != 0) {
DWORD myThread = GetCurrentThreadId();
if (AttachThreadInput(myThread, m_lastActiveThread, TRUE)) {
m_lastActiveWindow = GetActiveWindow();
AttachThreadInput(myThread, m_lastActiveThread, FALSE);
}
}
// show our window
ShowWindow(m_window, SW_SHOW);
// 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);
}
}
ShowWindow(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);
// 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);
}
static const KeyID g_virtualKey[] =
{
/* 0x00 */ kKeyNone, // reserved
/* 0x01 */ kKeyNone, // VK_LBUTTON
/* 0x02 */ kKeyNone, // VK_RBUTTON
/* 0x03 */ 0xff6b, // VK_CANCEL XK_Break
/* 0x04 */ kKeyNone, // VK_MBUTTON
/* 0x05 */ kKeyNone, // undefined
/* 0x06 */ kKeyNone, // undefined
/* 0x07 */ kKeyNone, // undefined
/* 0x08 */ 0xff08, // VK_BACK XK_Backspace
/* 0x09 */ 0xff09, // VK_TAB VK_Tab
/* 0x0a */ kKeyNone, // undefined
/* 0x0b */ kKeyNone, // undefined
/* 0x0c */ 0xff0b, // VK_CLEAR XK_Clear
/* 0x0d */ 0xff0d, // VK_RETURN XK_Return
/* 0x0e */ kKeyNone, // undefined
/* 0x0f */ kKeyNone, // undefined
/* 0x10 */ 0xffe1, // VK_SHIFT XK_Shift_L
/* 0x11 */ 0xffe3, // VK_CONTROL XK_Control_L
/* 0x12 */ 0xffe9, // VK_MENU XK_Alt_L
/* 0x13 */ 0xff13, // VK_PAUSE XK_Pause
/* 0x14 */ 0xffe5, // VK_CAPITAL XK_Caps_Lock
/* 0x15 */ kKeyNone, // VK_KANA
/* 0x16 */ kKeyNone, // VK_HANGUL
/* 0x17 */ kKeyNone, // VK_JUNJA
/* 0x18 */ kKeyNone, // VK_FINAL
/* 0x19 */ kKeyNone, // VK_KANJI
/* 0x1a */ kKeyNone, // undefined
/* 0x1b */ 0xff1b, // VK_ESCAPE XK_Escape
/* 0x1c */ kKeyNone, // VK_CONVERT
/* 0x1d */ kKeyNone, // VK_NONCONVERT
/* 0x1e */ kKeyNone, // VK_ACCEPT
/* 0x1f */ kKeyNone, // VK_MODECHANGE
/* 0x20 */ 0x0020, // VK_SPACE XK_space
/* 0x21 */ 0xff55, // VK_PRIOR XK_Prior
/* 0x22 */ 0xff56, // VK_NEXT XK_Next
/* 0x23 */ 0xff57, // VK_END XK_End
/* 0x24 */ 0xff50, // VK_HOME XK_Home
/* 0x25 */ 0xff51, // VK_LEFT XK_Left
/* 0x26 */ 0xff52, // VK_UP XK_Up
/* 0x27 */ 0xff53, // VK_RIGHT XK_Right
/* 0x28 */ 0xff54, // VK_DOWN XK_Down
/* 0x29 */ 0xff60, // VK_SELECT XK_Select
/* 0x2a */ kKeyNone, // VK_PRINT
/* 0x2b */ 0xff62, // VK_EXECUTE XK_Execute
/* 0x2c */ 0xff61, // VK_SNAPSHOT XK_Print
/* 0x2d */ 0xff63, // VK_INSERT XK_Insert
/* 0x2e */ 0xffff, // VK_DELETE XK_Delete
/* 0x2f */ 0xff6a, // VK_HELP XK_Help
/* 0x30 */ kKeyNone, // VK_0 XK_0
/* 0x31 */ kKeyNone, // VK_1 XK_1
/* 0x32 */ kKeyNone, // VK_2 XK_2
/* 0x33 */ kKeyNone, // VK_3 XK_3
/* 0x34 */ kKeyNone, // VK_4 XK_4
/* 0x35 */ kKeyNone, // VK_5 XK_5
/* 0x36 */ kKeyNone, // VK_6 XK_6
/* 0x37 */ kKeyNone, // VK_7 XK_7
/* 0x38 */ kKeyNone, // VK_8 XK_8
/* 0x39 */ kKeyNone, // VK_9 XK_9
/* 0x3a */ kKeyNone, // undefined
/* 0x3b */ kKeyNone, // undefined
/* 0x3c */ kKeyNone, // undefined
/* 0x3d */ kKeyNone, // undefined
/* 0x3e */ kKeyNone, // undefined
/* 0x3f */ kKeyNone, // undefined
/* 0x40 */ kKeyNone, // undefined
/* 0x41 */ kKeyNone, // VK_A XK_A
/* 0x42 */ kKeyNone, // VK_B XK_B
/* 0x43 */ kKeyNone, // VK_C XK_C
/* 0x44 */ kKeyNone, // VK_D XK_D
/* 0x45 */ kKeyNone, // VK_E XK_E
/* 0x46 */ kKeyNone, // VK_F XK_F
/* 0x47 */ kKeyNone, // VK_G XK_G
/* 0x48 */ kKeyNone, // VK_H XK_H
/* 0x49 */ kKeyNone, // VK_I XK_I
/* 0x4a */ kKeyNone, // VK_J XK_J
/* 0x4b */ kKeyNone, // VK_K XK_K
/* 0x4c */ kKeyNone, // VK_L XK_L
/* 0x4d */ kKeyNone, // VK_M XK_M
/* 0x4e */ kKeyNone, // VK_N XK_N
/* 0x4f */ kKeyNone, // VK_O XK_O
/* 0x50 */ kKeyNone, // VK_P XK_P
/* 0x51 */ kKeyNone, // VK_Q XK_Q
/* 0x52 */ kKeyNone, // VK_R XK_R
/* 0x53 */ kKeyNone, // VK_S XK_S
/* 0x54 */ kKeyNone, // VK_T XK_T
/* 0x55 */ kKeyNone, // VK_U XK_U
/* 0x56 */ kKeyNone, // VK_V XK_V
/* 0x57 */ kKeyNone, // VK_W XK_W
/* 0x58 */ kKeyNone, // VK_X XK_X
/* 0x59 */ kKeyNone, // VK_Y XK_Y
/* 0x5a */ kKeyNone, // VK_Z XK_Z
/* 0x5b */ 0xffe7, // VK_LWIN XK_Meta_L
/* 0x5c */ 0xffe8, // VK_RWIN XK_Meta_R
/* 0x5d */ 0xff67, // VK_APPS XK_Menu
/* 0x5e */ kKeyNone, // undefined
/* 0x5f */ kKeyNone, // undefined
/* 0x60 */ 0xffb0, // VK_NUMPAD0 XK_KP_0
/* 0x61 */ 0xffb1, // VK_NUMPAD1 XK_KP_1
/* 0x62 */ 0xffb2, // VK_NUMPAD2 XK_KP_2
/* 0x63 */ 0xffb3, // VK_NUMPAD3 XK_KP_3
/* 0x64 */ 0xffb4, // VK_NUMPAD4 XK_KP_4
/* 0x65 */ 0xffb5, // VK_NUMPAD5 XK_KP_5
/* 0x66 */ 0xffb6, // VK_NUMPAD6 XK_KP_6
/* 0x67 */ 0xffb7, // VK_NUMPAD7 XK_KP_7
/* 0x68 */ 0xffb8, // VK_NUMPAD8 XK_KP_8
/* 0x69 */ 0xffb9, // VK_NUMPAD9 XK_KP_9
/* 0x6a */ 0xffaa, // VK_MULTIPLY XK_KP_Multiply
/* 0x6b */ 0xffab, // VK_ADD XK_KP_Add
/* 0x6c */ 0xffac, // VK_SEPARATOR XK_KP_Separator
/* 0x6d */ 0xffad, // VK_SUBTRACT XK_KP_Subtract
/* 0x6e */ 0xffae, // VK_DECIMAL XK_KP_Decimal
/* 0x6f */ 0xffaf, // VK_DIVIDE XK_KP_Divide
/* 0x70 */ 0xffbe, // VK_F1 XK_F1
/* 0x71 */ 0xffbf, // VK_F2 XK_F2
/* 0x72 */ 0xffc0, // VK_F3 XK_F3
/* 0x73 */ 0xffc1, // VK_F4 XK_F4
/* 0x74 */ 0xffc2, // VK_F5 XK_F5
/* 0x75 */ 0xffc3, // VK_F6 XK_F6
/* 0x76 */ 0xffc4, // VK_F7 XK_F7
/* 0x77 */ 0xffc5, // VK_F8 XK_F8
/* 0x78 */ 0xffc6, // VK_F9 XK_F9
/* 0x79 */ 0xffc7, // VK_F10 XK_F10
/* 0x7a */ 0xffc8, // VK_F11 XK_F11
/* 0x7b */ 0xffc9, // VK_F12 XK_F12
/* 0x7c */ 0xffca, // VK_F13 XK_F13
/* 0x7d */ 0xffcb, // VK_F14 XK_F14
/* 0x7e */ 0xffcc, // VK_F15 XK_F15
/* 0x7f */ 0xffcd, // VK_F16 XK_F16
/* 0x80 */ 0xffce, // VK_F17 XK_F17
/* 0x81 */ 0xffcf, // VK_F18 XK_F18
/* 0x82 */ 0xffd0, // VK_F19 XK_F19
/* 0x83 */ 0xffd1, // VK_F20 XK_F20
/* 0x84 */ 0xffd2, // VK_F21 XK_F21
/* 0x85 */ 0xffd3, // VK_F22 XK_F22
/* 0x86 */ 0xffd4, // VK_F23 XK_F23
/* 0x87 */ 0xffd5, // VK_F24 XK_F24
/* 0x88 */ kKeyNone, // unassigned
/* 0x89 */ kKeyNone, // unassigned
/* 0x8a */ kKeyNone, // unassigned
/* 0x8b */ kKeyNone, // unassigned
/* 0x8c */ kKeyNone, // unassigned
/* 0x8d */ kKeyNone, // unassigned
/* 0x8e */ kKeyNone, // unassigned
/* 0x8f */ kKeyNone, // unassigned
/* 0x90 */ 0xff7f, // VK_NUMLOCK XK_Num_Lock
/* 0x91 */ 0xff14, // VK_SCROLL XK_Scroll_Lock
/* 0x92 */ kKeyNone, // unassigned
/* 0x93 */ kKeyNone, // unassigned
/* 0x94 */ kKeyNone, // unassigned
/* 0x95 */ kKeyNone, // unassigned
/* 0x96 */ kKeyNone, // unassigned
/* 0x97 */ kKeyNone, // unassigned
/* 0x98 */ kKeyNone, // unassigned
/* 0x99 */ kKeyNone, // unassigned
/* 0x9a */ kKeyNone, // unassigned
/* 0x9b */ kKeyNone, // unassigned
/* 0x9c */ kKeyNone, // unassigned
/* 0x9d */ kKeyNone, // unassigned
/* 0x9e */ kKeyNone, // unassigned
/* 0x9f */ kKeyNone, // unassigned
/* 0xa0 */ 0xffe1, // VK_LSHIFT XK_Shift_L
/* 0xa1 */ 0xffe2, // VK_RSHIFT XK_Shift_R
/* 0xa2 */ 0xffe3, // VK_LCONTROL XK_Control_L
/* 0xa3 */ 0xffe4, // VK_RCONTROL XK_Control_R
/* 0xa4 */ 0xffe9, // VK_LMENU XK_Alt_L
/* 0xa5 */ 0xffea, // VK_RMENU XK_Alt_R
/* 0xa6 */ kKeyNone, // unassigned
/* 0xa7 */ kKeyNone, // unassigned
/* 0xa8 */ kKeyNone, // unassigned
/* 0xa9 */ kKeyNone, // unassigned
/* 0xaa */ kKeyNone, // unassigned
/* 0xab */ kKeyNone, // unassigned
/* 0xac */ kKeyNone, // unassigned
/* 0xad */ kKeyNone, // unassigned
/* 0xae */ kKeyNone, // unassigned
/* 0xaf */ kKeyNone, // unassigned
/* 0xb0 */ kKeyNone, // unassigned
/* 0xb1 */ kKeyNone, // unassigned
/* 0xb2 */ kKeyNone, // unassigned
/* 0xb3 */ kKeyNone, // unassigned
/* 0xb4 */ kKeyNone, // unassigned
/* 0xb5 */ kKeyNone, // unassigned
/* 0xb6 */ kKeyNone, // unassigned
/* 0xb7 */ kKeyNone, // unassigned
/* 0xb8 */ kKeyNone, // unassigned
/* 0xb9 */ kKeyNone, // unassigned
/* 0xba */ kKeyNone, // OEM specific
/* 0xbb */ kKeyNone, // OEM specific
/* 0xbc */ kKeyNone, // OEM specific
/* 0xbd */ kKeyNone, // OEM specific
/* 0xbe */ kKeyNone, // OEM specific
/* 0xbf */ kKeyNone, // OEM specific
/* 0xc0 */ kKeyNone, // OEM specific
/* 0xc1 */ kKeyNone, // unassigned
/* 0xc2 */ kKeyNone, // unassigned
/* 0xc3 */ kKeyNone, // unassigned
/* 0xc4 */ kKeyNone, // unassigned
/* 0xc5 */ kKeyNone, // unassigned
/* 0xc6 */ kKeyNone, // unassigned
/* 0xc7 */ kKeyNone, // unassigned
/* 0xc8 */ kKeyNone, // unassigned
/* 0xc9 */ kKeyNone, // unassigned
/* 0xca */ kKeyNone, // unassigned
/* 0xcb */ kKeyNone, // unassigned
/* 0xcc */ kKeyNone, // unassigned
/* 0xcd */ kKeyNone, // unassigned
/* 0xce */ kKeyNone, // unassigned
/* 0xcf */ kKeyNone, // unassigned
/* 0xd0 */ kKeyNone, // unassigned
/* 0xd1 */ kKeyNone, // unassigned
/* 0xd2 */ kKeyNone, // unassigned
/* 0xd3 */ kKeyNone, // unassigned
/* 0xd4 */ kKeyNone, // unassigned
/* 0xd5 */ kKeyNone, // unassigned
/* 0xd6 */ kKeyNone, // unassigned
/* 0xd7 */ kKeyNone, // unassigned
/* 0xd8 */ kKeyNone, // unassigned
/* 0xd9 */ kKeyNone, // unassigned
/* 0xda */ kKeyNone, // unassigned
/* 0xdb */ kKeyNone, // OEM specific
/* 0xdc */ kKeyNone, // OEM specific
/* 0xdd */ kKeyNone, // OEM specific
/* 0xde */ kKeyNone, // OEM specific
/* 0xdf */ kKeyNone, // OEM specific
/* 0xe0 */ kKeyNone, // OEM specific
/* 0xe1 */ kKeyNone, // OEM specific
/* 0xe2 */ kKeyNone, // OEM specific
/* 0xe3 */ kKeyNone, // OEM specific
/* 0xe4 */ kKeyNone, // OEM specific
/* 0xe5 */ kKeyNone, // unassigned
/* 0xe6 */ kKeyNone, // OEM specific
/* 0xe7 */ kKeyNone, // unassigned
/* 0xe8 */ kKeyNone, // unassigned
/* 0xe9 */ kKeyNone, // OEM specific
/* 0xea */ kKeyNone, // OEM specific
/* 0xeb */ kKeyNone, // OEM specific
/* 0xec */ kKeyNone, // OEM specific
/* 0xed */ kKeyNone, // OEM specific
/* 0xee */ kKeyNone, // OEM specific
/* 0xef */ kKeyNone, // OEM specific
/* 0xf0 */ kKeyNone, // OEM specific
/* 0xf1 */ kKeyNone, // OEM specific
/* 0xf2 */ kKeyNone, // OEM specific
/* 0xf3 */ kKeyNone, // OEM specific
/* 0xf4 */ kKeyNone, // OEM specific
/* 0xf5 */ kKeyNone, // OEM specific
/* 0xf6 */ kKeyNone, // VK_ATTN
/* 0xf7 */ kKeyNone, // VK_CRSEL
/* 0xf8 */ kKeyNone, // VK_EXSEL
/* 0xf9 */ kKeyNone, // VK_EREOF
/* 0xfa */ kKeyNone, // VK_PLAY
/* 0xfb */ kKeyNone, // VK_ZOOM
/* 0xfc */ kKeyNone, // reserved
/* 0xfd */ kKeyNone, // VK_PA1
/* 0xfe */ kKeyNone, // VK_OEM_CLEAR
/* 0xff */ 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
static const KeyID XK_Multi_key = 0xff20;
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_LMENU] |
m_keys[VK_RMENU] |
m_keys[VK_MENU]) & 0x80) != 0) {
mask |= KeyModifierAlt;
}
if (((m_keys[VK_LWIN] |
m_keys[VK_RWIN]) & 0x80) != 0) {
mask |= KeyModifierMeta;
}
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;
}
*maskOut = mask;
log((CLOG_DEBUG2 "key in vk=%d info=0x%08x mask=0x%04x", vkCode, info, mask));
// get the scan code
UINT scanCode = static_cast<UINT>((info & 0xff0000) >> 16);
// convert virtual key to one that distinguishes between left and
// right for keys that have left/right versions. known scan codes
// that don't have left/right versions are passed through unchanged.
// unknown scan codes return 0.
UINT vkCode2 = MapVirtualKey(scanCode, 3);
// work around bug Q72583 (bad num pad conversion in MapVirtualKey())
if (vkCode >= VK_NUMPAD0 && vkCode <= VK_DIVIDE) {
vkCode2 = vkCode;
}
// MapVirtualKey() appears to map VK_LWIN, VK_RWIN, VK_APPS to
// some other meaningless virtual key. work around that bug.
else if (vkCode >= VK_LWIN && vkCode <= VK_APPS) {
vkCode2 = vkCode;
}
// if MapVirtualKey failed then use original virtual key
else if (vkCode2 == 0) {
vkCode2 = vkCode;
}
// sadly, win32 will not distinguish between the left and right
// control and alt keys using the above function. however, we
// can check for those: if bit 24 of info is set then the key
// is a "extended" key, such as the right control and right alt
// keys.
if ((info & 0x1000000) != 0) {
switch (vkCode2) {
case VK_CONTROL:
case VK_LCONTROL:
vkCode2 = VK_RCONTROL;
break;
case VK_MENU:
case VK_LMENU:
vkCode2 = VK_RMENU;
break;
}
}
// use left/right distinguishing virtual key
vkCode = vkCode2;
log((CLOG_DEBUG1 "key vk=%d scan=%d", vkCode, scanCode));
// handle some keys via table lookup
KeyID id = g_virtualKey[vkCode];
if (id != kKeyNone) {
return id;
}
// check for dead keys
if (MapVirtualKey(vkCode, 2) >= 0x8000) {
return XK_Multi_key;
}
// ToAscii() maps ctrl+letter to the corresponding control code
// and ctrl+backspace to delete. if we've got a control code or
// delete then do ToAscii() again but without the control state.
// ToAscii() interprets the control modifier state which we don't
// want. so save the control state then clear it.
BYTE lControl = m_keys[VK_LCONTROL];
BYTE rControl = m_keys[VK_RCONTROL];
BYTE control = m_keys[VK_CONTROL];
m_keys[VK_LCONTROL] = 0;
m_keys[VK_RCONTROL] = 0;
m_keys[VK_CONTROL] = 0;
// convert to ascii
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 XK_Multi_key;
}
// 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 XK_Multi_key;
}
// 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));
m_keys[VK_RSHIFT] = static_cast<BYTE>(GetKeyState(VK_RSHIFT));
m_keys[VK_SHIFT] = static_cast<BYTE>(GetKeyState(VK_SHIFT));
m_keys[VK_LCONTROL] = static_cast<BYTE>(GetKeyState(VK_LCONTROL));
m_keys[VK_RCONTROL] = static_cast<BYTE>(GetKeyState(VK_RCONTROL));
m_keys[VK_CONTROL] = static_cast<BYTE>(GetKeyState(VK_CONTROL));
m_keys[VK_LMENU] = static_cast<BYTE>(GetKeyState(VK_LMENU));
m_keys[VK_RMENU] = static_cast<BYTE>(GetKeyState(VK_RMENU));
m_keys[VK_MENU] = static_cast<BYTE>(GetKeyState(VK_MENU));
m_keys[VK_LWIN] = static_cast<BYTE>(GetKeyState(VK_LWIN));
m_keys[VK_RWIN] = static_cast<BYTE>(GetKeyState(VK_RWIN));
m_keys[VK_APPS] = static_cast<BYTE>(GetKeyState(VK_APPS));
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;
}
}
}
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