How to create a keyboard shortcut to play/pause any audio/video running in the background?

So I bought this keyboard for my laptop that doesn't have media keys on it and I am very used to pressing the play/pause button on my laptop to pause any media playing in the background. With this keyboard however I have to create my own keyboard shortcuts to do that because of the absence of media keys. Till now I have managed to make keyboard shortcuts for volume control. Research and my attempts: 1. I found this page which shows a command to simulate media keys from the terminal. . The command is xdotool key XF86AudioPlay but when I make a keyboard shortcut out of this by going to **Settings > Keyboard > Application Shortcuts**. It doesn't seem to work. 1. When I press the keyboard shortcut which I have set to *Super+F11* my CPU usage rises a bit which means that the shortcut is working. I confirmed this by changing the command the shortcuts executes to exo-open --launch WebBrowser which as you might have thought opens my web browser when I press *Super+F11*. 1. Now because I knew a bit of C/C++ I created this wrapper program which does exactly the same thing

#include 

int main() {
	system("xdotool key XF86AudioPlay");
}

and mapped the shortcut to execute this program but Alas!! it still doesn't work. How do I get the command that XFCE executes when I press the default play/pause button on my laptop keyboard because that seems to play/pause any media playing in the background. I use XFCE on Arch Linux. I usually listen to music on rhytmbox music play.