Forum > Audio and Video
[SOLVED] Sound Callback
pcurtis:
I was given the following code (DELPHI), see attachment, but can't get it to compile / work.
It's supposed to implement a callback for sound change notifications. It works as such but I cant compile
PostMessage(Handle, WM_VOLNOTIFY, WPARAM(pNotify.bMuted <> False), LPARAM(Round(100 * pNotify.fMasterVolume)));
If I change to
PostMessage(Handle, WM_VOLNOTIFY, 0, 0);
It works, but, of course, I get no information what has changed ...
Any help appreciated.
Thanks in advance.
pcurtis:
Just needed to dereference the pointer.
Fred vS:
--- Quote from: pcurtis on March 16, 2021, 11:01:45 am ---Just needed to dereference the pointer.
--- End quote ---
Hello PCurtis.
Congrats, you did it ! ;D
--- Quote ---If I change to
PostMessage(Handle, WM_VOLNOTIFY, 0, 0);
It works, but, of course, I get no information what has changed ...
--- End quote ---
You have more luck than me, even changing this in your demo (that compiles out-of-the-box) here nothing appends if I change the Windows-mixer-volume, the callback does not start.
[EDIT] Ooops, no, sorry, it works perfectly on Windows 10 (but not via Linux wine emulator).
Many thanks to share this code (and thanks to Him if he helped you).
Fre;D
pcurtis:
Try this (attachment)
Win 10, Laz 2.0.12
Fred vS:
Hello Curtis.
Re-oops we sent the post together, please take a look at my [EDIT].
I will try your new code now.
Fre;D
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