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Merge pull request #6618 from symless/v1-issue-4288-printscreen-issue

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Send Print Screen key to Windows clients
This commit is contained in:
Jnewbon 2020-01-21 15:47:24 +00:00 committed by GitHub
commit bbdc842b04
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GPG key ID: 4AEE18F83AFDEB23
3 changed files with 105 additions and 80 deletions
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69
src/lib/platform/MSWindowsDesks.cpp
View file

@ -88,6 +88,34 @@
// enable; <unused>
#define SYNERGY_MSG_FAKE_INPUT SYNERGY_HOOK_LAST_MSG + 12
static void
send_keyboard_input(WORD wVk, WORD wScan, DWORD dwFlags)
{
INPUT inp;
inp.type = INPUT_KEYBOARD;
inp.ki.wVk = (dwFlags & KEYEVENTF_UNICODE) ? 0 : wVk; // 1..254 inclusive otherwise
inp.ki.wScan = wScan;
inp.ki.dwFlags = dwFlags & 0xF;
inp.ki.time = 0;
inp.ki.dwExtraInfo = 0;
SendInput(1, &inp, sizeof(inp));
}
static void
send_mouse_input(DWORD dwFlags, DWORD dx, DWORD dy, DWORD dwData)
{
INPUT inp;
inp.type = INPUT_MOUSE;
inp.mi.dwFlags = dwFlags;
inp.mi.dx = dx;
inp.mi.dy = dy;
inp.mi.mouseData = dwData;
inp.mi.time = 0;
inp.mi.dwExtraInfo = 0;
SendInput(1, &inp, sizeof(inp));
}
//
// MSWindowsDesks
//
@ -245,21 +273,9 @@ MSWindowsDesks::getCursorPos(SInt32& x, SInt32& y) const
}
void
MSWindowsDesks::fakeKeyEvent(
KeyButton button, UINT virtualKey,
bool press, bool /*isAutoRepeat*/) const
MSWindowsDesks::fakeKeyEvent(WORD virtualKey, WORD scanCode, DWORD flags, bool /*isAutoRepeat*/) const
{
// synthesize event
DWORD flags = 0;
if (((button & 0x100u) != 0)) {
flags |= KEYEVENTF_EXTENDEDKEY;
}
if (!press) {
flags |= KEYEVENTF_KEYUP;
}
sendMessage(SYNERGY_MSG_FAKE_KEY, flags,
MAKEWORD(static_cast<BYTE>(button & 0xffu),
static_cast<BYTE>(virtualKey & 0xffu)));
sendMessage(SYNERGY_MSG_FAKE_KEY, flags, MAKELPARAM(scanCode, virtualKey));
}
void
@ -468,10 +484,10 @@ MSWindowsDesks::deskMouseMove(SInt32 x, SInt32 y) const
// the primary screen.
SInt32 w = GetSystemMetrics(SM_CXSCREEN);
SInt32 h = GetSystemMetrics(SM_CYSCREEN);
mouse_event(MOUSEEVENTF_MOVE | MOUSEEVENTF_ABSOLUTE,
send_mouse_input(MOUSEEVENTF_MOVE | MOUSEEVENTF_ABSOLUTE,
(DWORD)((65535.0f * x) / (w - 1) + 0.5f),
(DWORD)((65535.0f * y) / (h - 1) + 0.5f),
0, 0);
0);
}
void
@ -501,7 +517,7 @@ MSWindowsDesks::deskMouseRelativeMove(SInt32 dx, SInt32 dy) const
}
// move relative to mouse position
mouse_event(MOUSEEVENTF_MOVE, dx, dy, 0, 0);
send_mouse_input(MOUSEEVENTF_MOVE, dx, dy, 0);
// restore mouse speed & acceleration
if (accelChanged) {
@ -699,12 +715,16 @@ MSWindowsDesks::deskThread(void* vdesk)
break;
case SYNERGY_MSG_FAKE_KEY:
keybd_event(HIBYTE(msg.lParam), LOBYTE(msg.lParam), (DWORD)msg.wParam, 0);
// Note, this is intended to be HI/LOWORD and not HI/LOBYTE
send_keyboard_input(
HIWORD(msg.lParam),
LOWORD(msg.lParam),
(DWORD)msg.wParam);
break;
case SYNERGY_MSG_FAKE_BUTTON:
if (msg.wParam != 0) {
mouse_event((DWORD)msg.wParam, 0, 0, (DWORD)msg.lParam, 0);
if (msg.wParam != 0) {
send_mouse_input((DWORD)msg.wParam, 0, 0, (DWORD)msg.lParam);
}
break;
@ -721,7 +741,7 @@ MSWindowsDesks::deskThread(void* vdesk)
case SYNERGY_MSG_FAKE_WHEEL:
// XXX -- add support for x-axis scrolling
if (msg.lParam != 0) {
mouse_event(MOUSEEVENTF_WHEEL, 0, 0, (DWORD)msg.lParam, 0);
send_mouse_input(MOUSEEVENTF_WHEEL, 0, 0, (DWORD)msg.lParam);
}
break;
@ -750,9 +770,10 @@ MSWindowsDesks::deskThread(void* vdesk)
break;
case SYNERGY_MSG_FAKE_INPUT:
keybd_event(SYNERGY_HOOK_FAKE_INPUT_VIRTUAL_KEY,
SYNERGY_HOOK_FAKE_INPUT_SCANCODE,
msg.wParam ? 0 : KEYEVENTF_KEYUP, 0);
send_keyboard_input(
SYNERGY_HOOK_FAKE_INPUT_VIRTUAL_KEY,
SYNERGY_HOOK_FAKE_INPUT_SCANCODE,
msg.wParam ? 0 : KEYEVENTF_KEYUP);
break;
}

4
src/lib/platform/MSWindowsDesks.h
View file

@ -162,8 +162,8 @@ public:
/*!
Synthesize a press or release of key \c button.
*/
void fakeKeyEvent(KeyButton button, UINT virtualKey,
bool press, bool isAutoRepeat) const;
void fakeKeyEvent(WORD virtualKey, WORD scanCode,
DWORD flags, bool isAutoRepeat) const;
//! Fake mouse press/release
/*!

48
src/lib/platform/MSWindowsKeyState.cpp
View file

@ -1075,6 +1075,13 @@ MSWindowsKeyState::getKeyMap(synergy::KeyMap& keyMap)
}
}
// add the extended printscreen (alt+printscreen)
// or maybe it's the non-extended printscreen?
// scancodes and keyboard inputs are complicated
if (m_buttonToVK[0x54u] == 0) {
m_buttonToVK[0x54u] = VK_SNAPSHOT;
}
// set virtual key to button table
if (activeLayout == m_groups[g]) {
for (KeyButton i = 0; i < 512; ++i) {
@ -1210,14 +1217,8 @@ MSWindowsKeyState::getKeyMap(synergy::KeyMap& keyMap)
item.m_sensitive |= KeyModifierControl;
break;
case VK_SNAPSHOT:
item.m_sensitive |= KeyModifierAlt;
if ((i & 0x100u) == 0) {
// non-extended snapshot key requires alt
item.m_required |= KeyModifierAlt;
}
break;
}
addKeyEntry(keyMap, item);
}
}
@ -1234,7 +1235,7 @@ MSWindowsKeyState::fakeKey(const Keystroke& keystroke)
switch (keystroke.m_type) {
case Keystroke::kButton: {
LOG((CLOG_DEBUG1 " %03x (%08x) %s", keystroke.m_data.m_button.m_button, keystroke.m_data.m_button.m_client, keystroke.m_data.m_button.m_press ? "down" : "up"));
KeyButton button = keystroke.m_data.m_button.m_button;
KeyButton scanCode = keystroke.m_data.m_button.m_button;
// windows doesn't send key ups for key repeats
if (keystroke.m_data.m_button.m_repeat &&
@ -1244,24 +1245,27 @@ MSWindowsKeyState::fakeKey(const Keystroke& keystroke)
}
// get the virtual key for the button
UINT vk = keystroke.m_data.m_button.m_client;
WORD vk = (WORD)keystroke.m_data.m_button.m_client;
DWORD flags = 0;
if (keystroke.m_data.m_button.m_press == false)
flags |= KEYEVENTF_KEYUP;
// special handling of VK_SNAPSHOT
if (vk == VK_SNAPSHOT) {
if ((getActiveModifiers() & KeyModifierAlt) != 0) {
// snapshot active window
button = 1;
}
else {
// snapshot full screen
button = 0;
}
}
if (vk == VK_SNAPSHOT)
scanCode = (getActiveModifiers() & KeyModifierAlt) ? 0x54 : 0x137;
if (scanCode & 0x100)
flags |= KEYEVENTF_EXTENDEDKEY;
//vk,sc,flags,keystroke.m_data.m_button.m_repeat
m_desks->fakeKeyEvent(vk, scanCode, flags, keystroke.m_data.m_button.m_repeat);
// synthesize event
m_desks->fakeKeyEvent(button, vk,
keystroke.m_data.m_button.m_press,
keystroke.m_data.m_button.m_repeat);
//m_desks->fakeKeyEvent(button, vk,
// keystroke.m_data.m_button.m_press,
// keystroke.m_data.m_button.m_repeat);
break;
}