Re: CGDisplayReconfigurationCallBack

FROM : Jean-Daniel Dupas
DATE : Wed Apr 02 01:19:24 2008

As we are on the cocoa list, I assume you are using obj-c.
If you are using plain C API in your code, you should not have problem.
But  if "// do stuff" contains some obj-c calls that can raise an 
exception, you have to make sure to catch it.

void DisplayReconfigurationCallBack (CGDirectDisplayID display, 
CGDisplayChangeSummaryFlags flags, void *userInfo)
{
    if (flags & kCGDisplayAddFlag)
    {
   @try {
               // do stuff
   } @catch (NSException *exception) {
       // an error occured (but should not). You can ignore it if you want. 
you can log it, etc...
   }
    }
    else if (flags & kCGDisplayRemoveFlag)
    {
        // do different stuff
    }
}

Le 2 avr. 08 à 00:12, Trygve Inda a écrit :

> void DisplayReconfigurationCallBack (CGDirectDisplayID display,
> CGDisplayChangeSummaryFlags flags, void *userInfo)
> {
>    if (flags & kCGDisplayAddFlag)
>    {
>        // do stuff
>    }
>    else if (flags & kCGDisplayRemoveFlag)
>    {
>        // do different stuff
>    }
> }