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Getting Key and Create events from all window children with Xt

Hello,

I want to write a plugin for codeblocks, that can record Keyboard macros.

I am currently trying around with Xt how to get keyevents. This is my Program so far:

Code:

#include <iostream>



#include <X11/Xlib.h>

#include <X11/Xatom.h>

#include <X11/Intrinsic.h>

#include <X11/StringDefs.h>

#include <X11/Shell.h>

#include <X11/Xmd.h>

#include <X11/Xlibint.h>  /* for resource_mask */



using namespace std;



void AddWindow(Display* disp,Window* w)

{

    XSelectInput(disp,*w,KeyPressMask|KeyReleaseMask|SubstructureNotifyMask);

    Window root1,parent,*children;

    unsigned children_num,i;

    XQueryTree(disp,*w,&root1,&parent,&children,&children_num);

    for(i=0;i<children_num;++i)

    {

        AddWindow(disp,&children[i]);

    }

    Xfree(children);

}



int main(int argc,char *argv[])

{

    XtToolkitInitialize();

    XtSetLanguageProc(0,0,0);

    XtAppContext app_context=XtCreateApplicationContext();

    Display *disp=XtOpenDisplay(app_context,0,"XtTest","XtTest",0,0,&argc,argv);



    Window w=0;

    int revert_to=0;

    XGetInputFocus(disp,&w,&revert_to);



    AddWindow(disp,&w);



    XEvent ev;

    while(1)

    {

        XtAppNextEvent(app_context,&ev);

        XtDispatchEvent(&ev);

        switch(ev.type)

        {

            case KeyPress:

            cout<<"KeyPress"<<std::endl;

            break;

            case KeyRelease:

            cout<<"KeyRelease"<<std::endl;

            break;

            case MapNotify:

            cout<<"Window creation/deletion"<<std::endl;

            break;

            case CreateNotify:

            std::cout<<"Create window event"<<std::endl;

            break;

            default:

            std::cout<<"Unkown event type="<<ev.type<<std::endl;

            break;

        }

    }

    return 0;

}

It works, when i start it in gnome-terminal but only as long as I do not enter the menu or do anything which involves a new window.
As you can see, in AddWindow I am trying to get events from all childwindows. It does not help, I do not get key or CreateNotify events nor do I get Key events while in the menu or a dialog.

Any help?
Thanks!
Nathan

I don't get a window at all.

Wouldn't you better adding an eventhandler
man XtAddEventHandler to grab keypresses on the mainwindow?
these should(?) propogate down.

Is there a reason why you are processing the Event queue directly
instead of using XtAppMainLoop
and event handlers?

what distro?

Hi,

Thanks for your reply!
It does not open a window, it just "connects" to the focues window, which is the gnome-terminal in my case.

Using XtAddEventHandler and XtAppMainLoop does not make a difference. I did not use them beacuse ... well, bevause I am used to have a event loop as in my example.

My distro is gentoo.

Nathan

well, a new window such as a new terminal will not be a child window
the menu probably has an event handler for the keypress
with the propogate set to off

I just find out about the X record extension. Maybe I have more luck with that.
Thanks for the replies.
Nathan