For a small app I'm writing I'm using GetLogicalDriveStrings to get the removable drives. On one PC with a Technica card reader attached I have a problem. GetLogicalDriveStrings lists F,G,H,I even when there are no cards in the slots.

Is there a way of working out which of them actually have a card in them? What I've tried so far (DirectoryExists, FindFirst) generate a Windows level message which D2006s exception handling doesn't cope with - its not seen as an exception.


Roy Lambert

I'd suggest using something like GetDiskFreeSpaceEx and then if
FreeAvailable is 0 (or TotalSpace is 0) then there is no media.

Since cardreader shows up as removable media i suggest you call
SetErrorMode(SEM_FAILCRITICALERRORS) to avoid windows showing one those
annoying media not present prompts

Raul

On 12/23/2011 8:33 AM, Roy Lambert wrote:
> Is there a way of working out which of them actually have a card in them? What I've tried so far (DirectoryExists, FindFirst) generate a Windows level message which D2006s exception handling doesn't cope with - its not seen as an exception.

Raul

SetErrorMode(SEM_FAILCRITICALERRORS); was the bit I really needed - never had to do it before so had no idea what to look for. With that bit a simple DirectoryExists gives me what I need.

I posted here in desperation since the dear old cg ngs are down again. Maybe when Tim's got EWB complete we should all get together and produce a nice newsreader (on and off line) for them as a gift <evil grin>


Roy Lambert