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added support for locking to a screen when the sroll lock is

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toggled on or when any key or button is pressed.  fully
implemented on X but stubbed out for now on win32.
This commit is contained in:
crs
2002-05-24 14:37:12 +00:00
parent a0b25b9d4a
commit 34c587e864
6 changed files with 58 additions and 2 deletions
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35
server/CXWindowsPrimaryScreen.cpp
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@@ -424,8 +424,9 @@ KeyModifierMask CXWindowsPrimaryScreen::getToggleMask() const
int xRoot, yRoot, xWindow, yWindow;
unsigned int state;
if (!XQueryPointer(display, m_window, &root, &window,
&xRoot, &yRoot, &xWindow, &yWindow, &state))
&xRoot, &yRoot, &xWindow, &yWindow, &state)) {
return 0;
}
// convert to KeyModifierMask
KeyModifierMask mask = 0;
@@ -439,6 +440,38 @@ KeyModifierMask CXWindowsPrimaryScreen::getToggleMask() const
return mask;
}
bool CXWindowsPrimaryScreen::isLockedToScreen() const
{
CDisplayLock display(this);
// query the pointer to get the button state
Window root, window;
int xRoot, yRoot, xWindow, yWindow;
unsigned int state;
if (XQueryPointer(display, m_window, &root, &window,
&xRoot, &yRoot, &xWindow, &yWindow, &state)) {
if ((state & (Button1Mask | Button2Mask | Button3Mask |
Button4Mask | Button5Mask)) != 0) {
return true;
}
}
// get logical keyboard state
char keyMap[32];
memset(keyMap, 0, sizeof(keyMap));
XQueryKeymap(display, keyMap);
// locked if any key is down
for (unsigned int i = 0; i < sizeof(keyMap); ++i) {
if (keyMap[i] != 0) {
return true;
}
}
// not locked
return false;
}
void CXWindowsPrimaryScreen::onOpenDisplay()
{
assert(m_window == None);