Re: First ROM Version to support HostGetHostID()

[krollin]

Try something like this (this is off the top of my head, so please forgive any
mistakes):

Boolean HasHostControl()
{
     UInt32 value
     if (FtrGet('pose', 0, &value) == errNone)
     {
          // HostControl functions always implemented under the Emulator

          return true;
     }

     if (!hasHostControl)
     {
          // HostControl trap was first added in 3.0. Check that
          // it's actually implemented.  Check the OS version number
          // first, because SysGetTrapAddress doesn't always behave
          // well on pre-3.1 systems

          if (GetOSVersion() >= kVersion30)
          {
               void* addr1 = SysGetTrapAddress(sysTrapHostControl);
               void* addr2 = SysGetTrapAddress(sysTrapSysUnimplemented);
               return (addr1 != addr2);
          }
     }

     return false;
}

Boolean HasHostGetHostID()
{
     Boolean hasHostGetHostID = false;

     if (HasHostControl())
     {
          // OK, we know the HostControl dispatch trap is implemented.
          // Call into it to see if HostGetHostID is implemented.

          hasHostGetHostID = HostSelectorImplemented(hostSelectorGetHostID);
     }

     return hasHostGetHostID;
}

-- Keith Rollin
-- Palm OS Emulator engineer






Doug Morrison <[EMAIL PROTECTED]> on 11/04/99 10:48:08 AM

Please respond to [EMAIL PROTECTED]

Sent by:  Doug Morrison <[EMAIL PROTECTED]>


To:   "'palm-dev-forum @3com.com'" <[EMAIL PROTECTED]>
cc:    (Keith Rollin/HQ/3Com)
Subject:  First ROM Version to support HostGetHostID()




All,

Does anyone know what the first ROM Version supports the HostGetHostID()?


Thanks,
-Doug