unix | Twise Random

xprop a tutorial

mohamad wael — Mon, 12 Jul 2021 10:18:59 +0000

Let us start by defining what is xprop. xprop is simply a tool, to query, set, and remove the properties of an X11 window .

Additionally, using xprop, you can query X11 core fonts attributes, so you … Read More

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What is a property in X11?

mohamad wael — Sat, 10 Jul 2021 13:17:35 +0000

In X11, a property simply has a name, a type, a format, a value, and is associated with a window.

There is a set of functions, provided by X11, which allows manipulating a property, and they … Read More

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What is an atom in X11?

mohamad wael — Wed, 07 Jul 2021 15:20:32 +0000

An atom in X11, is of type Atom, which is defined in the <X11/Xatom.h header, as :

typedef unsigned long Atom;		/* Also in Xdefs.h */

An atom is 32 bits, the reason, that long was chosen, … Read More

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X11 fonts a tutorial

mohamad wael — Mon, 05 Jul 2021 13:25:53 +0000

In X11, you can use multiple font systems, practically there is the X11 core font system , core as in being part of the core protocol, and there is a newer font system, called the xft font … Read More

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xset a tutorial

mohamad wael — Wed, 30 Jun 2021 20:23:51 +0000

xset is a tool, which allows specifying certain configuration, for the X11 server. Mainly these configuration, are related to hardware, that the X11 server interacts with, so the keyboard, the mouse, the display, this being said, the display power … Read More

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Command line editing keyboard shortcuts

mohamad wael — Mon, 09 Nov 2020 01:32:58 +0000

The command line , is the place where you type in your commands , to be interpreted and executed by the shell .

The command line is located just after the shell prompt , which usually has the format: username@host:currentWorkingDirectory$… Read More

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How to add global hotkeys to SMPlayer ?

mohamad wael — Sat, 26 Sep 2020 16:09:32 +0000

To add global keyboard shortcuts for SMPlayer , like to toggle playing on or off , this can be done like this .

First install SMPlayer :

$ pkg install smplayer
# run as root under freebsd .

$ apt-get

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