changing InCall volume with out warm rebooting

[Murthy]

Hi,
I have found the registry setting to change the InCall volume on my windows
mobile 5.0 device. i am able to change this registry programmatically. But
the change in In-Call volume is happening only after warm rebooting the
device.

Can some me let me know how i can change the In-Call volume with out warm
rebooting the device?

Thanks in Advance,
Murthy

 

[Guest]

I'd ry broadcasting a WM_SETTING_CHANGE message after making the change and
see if the shell picks it up.


--

Chris Tacke, Embedded MVP
OpenNETCF Consulting
Giving back to the embedded community
http://community.OpenNETCF.com

 

[Murthy]

Hi Chris,
I tried posting the below message, but it had no impact.

SendMessage((IntPtr)HWND_BROADCAST, WM_WININICHANGE, 0, (IntPtr)5000);

Please let me know if you are talking about the same message.

Thanks,
Murthy

 

[Guest]

We're not.

http://msdn2.microsoft.com/en-us/library/ms725497(VS.85).aspx


--

Chris Tacke, Embedded MVP
OpenNETCF Consulting
Giving back to the embedded community
http://community.OpenNETCF.com

 

[Murthy]

Thanks chris for your reply.

const int WM_WININICHANGE = 0x001A;
const int HWND_BROADCAST = 0xffff;
// For Registry setting to take effect with out soft reset.
SendMessage((IntPtr)HWND_BROADCAST, WM_WININICHANGE, 0, (IntPtr)5000);

In Msdn value for WM_SETTINGCHANGE is given as below.
WM_SETTINGCHANGE = &H1A

should i try this message with some other wparam and lparam...??

Thanks in advance,
Murthy

 

[Guest]

Your code is fine, if it didn't work then the control panel is using some
other mechanism to update notify the system that the volume has changed or
it's double-tasking and altering the volume itself *and* writing the reg
key. The next step I'd try is to run remote spy++ and see if any messages
are sent when you change the volume in the control panel.