How to make Windows re-read Registry?

[Clay Clear]

I have written a program (well, will re-write it) that toggles
the data/audio CD autorunning feature of Windows. The audio CD
feature, when toggled, takes effect immediately, as noted in
MSDN. But, MSDN says that the data autorunning feature uses a
"persistent" key in the Registry. I assume that that's why
changes to the key's value don't take effect until after I reboot
my machine. However, StepUp has an autorunning feature toggler
in its program, BUT, unlike my program, changes it makes to the
data autorunning take effect in realtime, WITHOUT requiring a
reboot. So, how can I make MY program do the same?

Semen,

I tried the API Call that you thought were necessary in my
posting on the same subject a LONG time ago. I tried MANY
variations of calls to the API function, and none of them worked.


So, anybody have any ideas? I'm SURE that the key to it is
getting the OS to re-read the Registry. But, that's only a
guess. My OS is Win98SE.

Any ideas would be GLADLY and GRATEFULLY received!

Thanks in advance!


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Clay C. Clear

[email protected]

http://www.v3space.com/a/a39/202/

[Lance Edmonds]

Maybe broadcasting a %WM_SETTINGCHANGE message would do it... see SystemParametersInfo() in WIN32.HLP, or try:

SendMessage %HWND_BROADCAST, %WM_SETTINGCHANGE, 0&, 0&

------------------
Lance
PowerBASIC Support
mailto:[email protected][email protected]</A>

[Clay Clear]

Lance,

THANK YOU EVER SO MUCH! After adding the SendMessage line that you posted to
the end of my temporary TEST program, the program performed FLAWLESSLY!
The program didn't even require SHChangeNotify! NOW, I can *FINALLY*
write the PUBLIC RELEASE version of my CD Autorun toggling program!
AND I can uninstall StepUp! Don't get me wrong - StepUp is a FINE program, but I
don't appreciate having to install the full suite of 5 (or 6?)
programs just to use the one feature.

Thanks, again! You're a lifesaver! <big toothy grin>




------------------
Clay C. Clear

[email protected]

http://www.v3space.com/a/a39/202/