how to determine if CapsLock is on [crossplatform]

[MaikoID]

Hi, I've a similar problem. I need to check which is the physical modifiers' positions, Control, Shift and Alt. On Windows I did it handling the winEvents I'm trying to do the same in linunx handling the x11events but I can't check if the current XEvent is a KeyPress event. One of the problems is what you mentioned, I needed to undef the X11 KeyPress macro. I have tried to compare the XEvent type with 2 because this is the constant declared in X11/X.h but didn't work.

maiko@cits-d530:~/Projetos/Positivo$ grep -i keypress /usr/include/X11/X.h 
#define KeyPressMask			(1L<<0)  
#define KeyPress		2

maiko@cits-d530:~/Projetos/Positivo$ grep -i keypress /usr/include/X11/X.h 
#define KeyPressMask			(1L<<0)  
#define KeyPress		2

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this is my current code

bool MainWindow::x11Event(XEvent *xe)
{
    //TODO: remove #undef KeyPress
    if(xe->type == 2)
    {
        switch (xe->xkey.keycode)
        {
        case 37://Control_L
            keyPressEvent(xe->xkey.keycode, "Key_ControlL");
            break;
        case 105://Control_R
            keyPressEvent(xe->xkey.keycode, "Key_ControlR");
            break;
        case 50://Shift_L
            keyPressEvent(xe->xkey.keycode, "Key_ShiftL");
            break;
        case 62://Shift_R
            keyPressEvent(xe->xkey.keycode, "Key_ShiftR");
            break;
        default:
            return false;
        }
        return true;
    }
    return false;
}

bool MainWindow::x11Event(XEvent *xe)
{
    //TODO: remove #undef KeyPress
    if(xe->type == 2)
    {
        switch (xe->xkey.keycode)
        {
        case 37://Control_L
            keyPressEvent(xe->xkey.keycode, "Key_ControlL");
            break;
        case 105://Control_R
            keyPressEvent(xe->xkey.keycode, "Key_ControlR");
            break;
        case 50://Shift_L
            keyPressEvent(xe->xkey.keycode, "Key_ShiftL");
            break;
        case 62://Shift_R
            keyPressEvent(xe->xkey.keycode, "Key_ShiftR");
            break;
        default:
            return false;
        }
        return true;
    }
    return false;
}

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Bye and thx.