[mythtv] libmyth windows CD handler (so far only a proof of concept)

[Jonathan Martens]

Hello all,

since I have finally been able to compile MyTHMusic on windows (with a 
few hacks) I am now able to access the array of functions to access the 
optical drives.... Yihaa!

Therefore I have started on writing a MythCDROMWindows class and have 
had some success using DeviceIOControl [1], which is supported through 
MinGW's w32api files (ddk/nddchgr.h).

I can now eject and possibly also load the tray (the latter I can not 
test as I have a laptop CD/DVD drive that has no motor, but is spring 
loaded).

Until now I have hardcoded my drivePath to the CD drive I am using. 
Since I do not know any way of retrieving the drivePath for a device 
from a subclass of MythCDROM (which in turn is a child of 
MythMediaDevice) I turn to you. It seems the getDrivePath() method is in 
the MythMediaDevice class but I have no clue how to gat access to that 
from MythCDROMWindows. Can some of the dev's or more experienced MythTV 
developers help me with this?

I have noticed that in the other (linux based) MythCDROM* classes the 
variable m_DeviceHandler is used. Is there any method to retrieve the 
drivePath using that variable as a starting point?

Kind regards,

Jonathan

[1] <http://msdn.microsoft.com/en-us/library/aa363216%28VS.85%29.aspx>