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now synthesizing key release events for each pressed key when

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the client screen is closed.  this fixes the bug where the
client's keyboard was left with some keys logically pressed
when the client died (e.g. using ctrl+c on the client program
from the server's keyboard would leave the ctrl key logically
pressed).
This commit is contained in:
crs
2002-07-01 13:03:16 +00:00
parent a0eba4c337
commit e267d1dc1c
5 changed files with 82 additions and 2 deletions
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23
client/CXWindowsSecondaryScreen.cpp
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@@ -130,6 +130,9 @@ CXWindowsSecondaryScreen::close()
{
assert(m_client != NULL);
// release keys that are logically pressed
releaseKeys();
// restore the screen saver settings
getScreenSaver()->enable();
@@ -847,6 +850,24 @@ CXWindowsSecondaryScreen::maskToX(KeyModifierMask inMask) const
return outMask;
}
void
CXWindowsSecondaryScreen::releaseKeys()
{
CDisplayLock display(this);
// key up for each key that's down
for (UInt32 i = 0; i < 256; ++i) {
if (m_keys[i]) {
XTestFakeKeyEvent(display, i, False, CurrentTime);
m_keys[i] = false;
}
}
// update
XSync(display, False);
}
void
CXWindowsSecondaryScreen::updateKeys(Display* display)
{
@@ -855,7 +876,7 @@ CXWindowsSecondaryScreen::updateKeys(Display* display)
XQueryKeymap(display, keys);
// transfer to our state
for (unsigned int i = 0, j = 0; i < 32; j += 8, ++i) {
for (UInt32 i = 0, j = 0; i < 32; j += 8, ++i) {
m_keys[j + 0] = ((keys[i] & 0x01) != 0);
m_keys[j + 1] = ((keys[i] & 0x02) != 0);
m_keys[j + 2] = ((keys[i] & 0x04) != 0);