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From: (e-mail address removed) (Nazim Lala [MSFT])
Organization: Microsoft
Date: Wed, 14 Jan 2004 01:58:38 GMT
Subject: RE: retrieve SD (secure digital) card number, etc
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Bottom line is you will need to use native (WinCE) code written in C to
achieve this, and then P/invoke down to your native code from C#. What you
want to do is pretty much driver level stuff and NETCF won't have wrappers
for stuff like that. There's a whole section on interop with native code athttp://msdn.microsoft.com/mobility/prodtechinfo/devtools/netcf/faq/default.a
spx#6.0
Here's some stuff that might get you started though.
As far as notifications for insertion/removal of SD cards goes I guess you
can listen for WM_FILECHANGEINFO message. It notifies you of file /
directory changes (including SD card changes). LPARAM in this case is
FILECHANGEINFO structure. Fci value should be SHCNE_CREATE or SHCNE_DELETE.
As for the SD card id you would need to use DeviceIOControl(), something
like ...
DWORD fileAttr = GetFileAttributes( VolumeString );
if( ( fileAttr != -1 ) &&( fileAttr & ( FILE_ATTRIBUTE_DIRECTORY |
FILE_ATTRIBUTE_TEMPORARY ) ) ) {
wcscpy( volString, VolumeString );
wcscat( volString, L"Vol:" );
hVolume = CreateFile( volString, GENERIC_READ|GENERIC_WRITE, 0, NULL,
OPEN_EXISTING, 0, NULL);
if( hVolume != INVALID_HANDLE_VALUE ) {
DeviceIoControl( hVolume, IOCTL_DISK_GET_STORAGEID, NULL, 0,
DiskID, MAX_VOLUME_NAME, &dwBytesRead, NULL );
CloseHandle( hVolume );
}
}
if( dwBytesRead ) {
pDiskID = (PSTORAGE_IDENTIFICATION)DiskID;
cbHwId = dwBytesRead - pDiskID->dwSerialNumOffset - 1;
pbHwId = (BYTE *)(DiskID + pDiskID->dwSerialNumOffset);
}
else {
cbHwId = dwUniqueIDLen;
pbHwId = lpUniqueID;
}
PS: I haven't tried compiling this code ...
This posting is provided "AS IS" with no warranties, and confers no rights.
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Subject: retrieve SD (secure digital) card number, etc
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Hi All,
I'm trying to convert our software run in Palm OS
to C# in .NET CF.
the software uses Palm OS API to check the presence of the SD (secure digital) card,
retrieve the SD card number, get notification upon the removal of the
SD
card.
what are the methods or API in .NET CF for these jobs ?
I've been searching for this unsuccessfully and appreciate all your help !
