WAVE files with window API

[joey12]

Hello,

I am working on a project of displaying a .wav file in a small basic application.

I have so far done the whole code to play, pause, resume, stop the sound, change the volume etc...

I am having trouble with those three things, and i guess 2 of them are linked:

- Draw the wave
- Create a trackpad
- Add effect and save as the new sound...

I am having a hard time extracting all the information of the file in order to calculate what is needed to draw the wave and the trackpad.

I did not find any algorithm to draw the sound or to do this trackpad.
Actually the trackpad is there, but I can't make it work to follow my sound

Thanks....

Joey