[vdr] How to display an OSD message from a thread?

Klaus Schmidinger Klaus.Schmidinger at cadsoft.de
Sat Nov 19 10:45:56 CET 2005


Christian Wieninger wrote:
> Hi,
> 
> I'm trying to display an OSD message from a separate thread within a plugin to 
> indicate when some background action has finished. The message should pop up 
> no matter if there's currently an OSD displayed or not. So SVDRP MESG is no 
> solution, since this will only appear when leaving the OSD.
> 
> I tried it with the new service interface. The thread calls a service of the 
> plugin passing the message. The service itself calls 
> 
> Skins.Message(serviceData->type, serviceData->message);
> 
> This works fine, but sometimes crashes VDR in cSkins::Message. I've found a 
> way to reproduce it: 
> When the main menu is displayed and the message pops up then pressing BACK  
> while the message still is displayed crashes VDR. In this case the problem is 
> that in
> 
> cSkinDisplay::Current()->SetMessage(Type, NULL);
> 
> cSkinDisplay::Current() is NULL. Don't know if this is a bug or just the 
> result of my wrong usage ;-)
> Is there any other way to display a message from a thread?

There is currently no way of doing this.
I'm not sure if there will be one in version 1.4.

What's so important about your message that it can't wait?

Klaus



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