[Xcb] Where do I find the xcb_keysym_t and modifier value constants?

Nicholas Allen nick.allen at onlinehome.de
Sun Mar 21 07:45:26 PDT 2010

Thanks for your helpful answer..



Arnaud Fontaine wrote:
>>>>>> Nicholas Allen <nick.allen at onlinehome.de> writes:
> Hi,
>     > Hi, The only part left to  do in my conversion from xlib to xcb is
>     > looking up the keysym  constants. Xlib has the X11/keysym.h header
>     > file where  the values are defined. Should I  be using this header
>     > or does xcb have its own version of this?
> For   now,  you   should   use  this   header   as  there   is  no   XCB
> equivalent. However, I'm currently working  on the keyboard code even if
> it's    not    moving    forward    quickly   as    I'm    quite    busy
> unfortunately. Remember  that XCB keyboard support is  really basic ATM,
> no XKB and XLookupString equivalents for example.
> Today, I will publish a draft of the keyboard status in XCB, in the hope
> that there will  be some GSoC students interested  in writing a proposal
> to implement all the missing bits for keyboard.
>     > Also, the modifier  constants (eg ShiftMask, ControlMask etc) were
>     > defined  in X11/X.h.  It seems excessive  to me to  introduce this
>     > header file just for these  constants. I would prefer to make sure
>     >  I   don't  use   any  Xlib  functions   by  not   including  this
>     >  header. However,  I couldn't  find  the xcb  equivalent of  these
>     > constants anywhere.
> Besides of  including X11/keysym.h, you  should not have to  include any
> other Xlib headers. ShiftMask and  ControlMask for instance are parts of
> the  X Window  System Protocol,  and therefore  defined  in xcb/xcb.h[0]
> (such as XCB_MOD_MASK_SHIFT and XCB_MOD_MASK_CONTROL). You might also be
> interested  in  xcb-util/keysym[1]  which provides  Xlib-like  utilities
> functions.
> Hope that helps.
> Arnaud
> [0] http://xcb.freedesktop.org/manual/group__XCB____API.html
> [1] http://cgit.freedesktop.org/xcb/util/tree/keysyms
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