On Fri, 24 Mar 2006, Dmitry Timoshkov wrote:
? I do understand why this happens: X11DRV_ToUnicodeEx uses the global,
static variable AltGrMask. Is this a bug?
In X11DRV_ToUnicodeEx we need to restore XKeyEvent from the previous
KeyPress event. If you have a better idea how to do it without using
global variables please let us know.
What about using the thread_input->keystate, just as for Shift, Control,
and NumLock?
ToUnicodeEx does have a lpKeyState argument, so to me, it seems very wrong
that a static, global variable is needed as well.
TranslateMessage calls GetKeyboardState just before ToUnicode. MSDN
documents GetKeyboardState as: "The status changes as a thread removes
keyboard messages from its message queue." My interpretation is that this
means that ToUnicodeEx consider how the modifiers *was* rather then what
they *are*.
The current implementation has another drawback: AltGr key presses never
reaches the applications. In Windows, applications recieves VK_CONTROL,
VK_MENU when AltGr is pressed.
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