Need Code for Press number key on Window

Alright so it's been years since i've coded in VB6 but its the only i've used.

What im looking to do is is have a Timer to start sending a number key press every second that is i set for like Text Box one..

So heres an example of what i wanna do

When Text Box 1 will have a option to put in say 120 seconds when F9 is pressed it will press the 8 Key on a Active Window Title like Notepad for example.

I've been out of coding in VB6 for so many years i have no idea how to code it so if one of you can code me an example i'll throw it into a Standard EXE and add a Timer and a Textbox to the form.

Would greatly thank anyone for help. Just wanna throw it together for a small project.

Thanks!