How to make my app support Drag and Drop?

[practicer]

Hi, Guys! I am making a music player by mmf2 software, but I face a question that how to make my little app support Drag and Drop.
This function is just like you open Windows Notepad and drag & drop a text file into the tool.so it will open the file.

How can I make it?

Thanks in advance!

[Danny]

Here, something I made for someone last week. It explains drag and drop and also some media player functions not found as standard.

mplayer.mfa

It's not the prettiest but it was only meant to demonstrate how to use drag n drop and some other functions.

P.S You may need the 'trackbar' object, I'm unsure as to whether or not this comes as standard it's been that long