---------------------------------------------------------------------- >Date: 17 Apr 1999 11:39:33 -0700 >From: Jim Schram <[EMAIL PROTECTED]> >Subject: Re: hooks entering and exiting sleep mode? >At 9:37 AM -0700 1999/04/17, [EMAIL PROTECTED] wrote: >>Is there a way, without hacking on the Palm OS code, to get a "notification" >>(Application launch) when the system is about to enter "sleep mode" ? >>Likewise, can I get a "notification" that the system has just went into >>"running mode"? >> >>I will humbly accept pointers to documentation or faq's that address this >>question. I have tried the Palm published faq's and went through the Palm >>development documentation and at this point I'm starting to think it is not >>possible. >You're more or less correct -- without hacking there is no way for an >application to reliably detect the sleep/wake cycle. There is one for shared >libraries, but the issue there is the API can be called at interrupt time, >which prevents your app from doing things like allocating memory or calling >user interface routines. So really it's of limited utility -- it was designed >for hardware-twiddling actions like powering off a serial port, for example. This kind of hook may work for me. If I understand what your saying, I can provide an "interrupt handler" to do some work even though my application is not running. By placing it in a shared library, the system will have access to the routine at all times. I'm not familiar with shared libraries on the Palm, but I will start my investigation. Any pointers on documentation about shared libraries and the specific API you referred to would be appreciated. Would I be able to send a "Launch Code" to my app from the interrupt? Regards, Dave
