Xfce Forum

tehkos

Member

Registered: 2021-07-12

Posts: 10

Emulate ctrl+v (pasting a text) without freezing on xfce.

Hi.
I'm trying to create a script that inserts some text in different editors. I'm using xdotool, but after the text is pasted, the screen freezes for a second. That happens when the default xfce compositor is on.

For example: copy any text and then launch the next code in the terminal:

sleep 4 && xdotool key ctrl+v 

Then quickly start to type something in any editor or erase the text.

With the compositor off, typing is smooth without freezing.

Maybe somebody knows another tool for emulating key pressing that feels more native for pasting (or typing) with the xfce compositor on?

I tried autokey. It works fine. The only thing I don't like is the process that always in the background consuming memory.

Misko_2083

Member

Registered: 2015-10-13

Posts: 191

Website

Re: Emulate ctrl+v (pasting a text) without freezing on xfce.

What if you write your own app?
You will need Xlib and XTest extension
In Debian these dev libraries are needed to compile: libx11-dev libxt-dev libxext-dev
Will also need gcc.

Save next as tehkopaste.c and comile in the same folder with:

gcc tehkopaste.c -o tehkopaste -lX11 -lXtst -lXext

#include <X11/Xlib.h>
#include <X11/Intrinsic.h>
#include <X11/extensions/XTest.h>

static void SimKey (Display * disp,
                    KeySym keysym,
                    KeySym modsym){
 KeyCode keycode = 0, modcode = 0;
 keycode = XKeysymToKeycode (disp, keysym);
 modcode = XKeysymToKeycode(disp, modsym);
 XTestGrabControl (disp, True);
 XTestFakeKeyEvent (disp, modcode, True, 0);
 XTestFakeKeyEvent (disp, keycode, True, 0);
 XTestFakeKeyEvent (disp, keycode, False, 0); 
 XTestFakeKeyEvent (disp, modcode, False, 0);
 XSync (disp, False);
 XTestGrabControl (disp, False);
}
 
int main (){
 Display *disp = XOpenDisplay (NULL);
 SimKey (disp, XK_V, XK_Control_L);
 XCloseDisplay(disp);
}

When a binary is created up run:

sleep 4 && tehkopaste

And then, if you wish so, drop by to tell us how tehkopasting goes.

Last edited by Misko_2083 (2021-11-11 00:47:25)

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KBar

Moderator

Registered: 2021-11-05

Posts: 689

Re: Emulate ctrl+v (pasting a text) without freezing on xfce.

Save next as tehkopaste.c and comile in the same folder with:

And then, if you wish so, drop by to tell us how tehkopasting goes.

Cool name but it's got nothing on "ganknkill.c".

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tehkos

Member

Registered: 2021-07-12

Posts: 10

Re: Emulate ctrl+v (pasting a text) without freezing on xfce.

Misko_2083, I tried your solution. It feels the same like xdotool script. I mean when text is pasted and I start to erase it, the screen' freezing. It's not the same when I physically press ctrl+v.

Autokey somehow solved it.