I've been frequently asked on how to copy files from the desktop to a Windows Mobile based device. The answer is the Remote API. here's how to do it:
First, we'll need our P/Invokes to rapi.dll
[DllImport("rapi.dll")]static extern int CeRapiInit();
[DllImport("rapi.dll")]static extern int CeRapiUninit();
[DllImport("rapi.dll", CharSet = CharSet.Unicode)]static extern IntPtr CeCreateFile(
string lpFileName,
uint dwDesiredAccess,
int dwShareMode,
int lpSecurityAttributes,
int dwCreationDisposition,
int dwFlagsAndAttributes,
int hTemplateFile);
[DllImport("rapi.dll", CharSet = CharSet.Unicode)]internal static extern int CeWriteFile(
IntPtr hFile,
byte[] lpBuffer,
int nNumberOfbytesToWrite,
ref int lpNumberOfbytesWritten,
int lpOverlapped);
[DllImport("rapi.dll", CharSet = CharSet.Unicode)]internal static extern int CeSetFileTime(
IntPtr hFile,
ref long lpCreationTime,
ref long lpLastAccessTime,
ref long lpLastWriteTime);
const int BUFFER_SIZE = 1024 * 5; // 5k transfer buffer
const int CREATE_ALWAYS = 2;
const int ERROR_SUCCESS = 0;
const int FILE_ATTRIBUTE_NORMAL = 0x80;
const uint GENERIC_WRITE = 0x40000000;
const int INVALID_HANDLE_VALUE = -1;
Now let's wrap all those in a method called CopyToDevice(string localFile, string remoteFile). The localFile is the file located on the desktop and the remoteFile is the destination filename on the device.
void CopyToDevice(string localFile, string remoteFile)
{ var rapi = CeRapiInit() == ERROR_SUCCESS;
if (!rapi)
return;
try
{ var filePtr = CeCreateFile(remoteFile, GENERIC_WRITE, 0, 0, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, 0);
if (filePtr == new IntPtr(INVALID_HANDLE_VALUE))
return;
using (var localFileStream = new FileStream(localFile, FileMode.Open, FileAccess.Read))
{ var byteswritten = 0;
var position = 0;
var buffer = new byte[BUFFER_SIZE];
var bytesread = localFileStream.Read(buffer, position, BUFFER_SIZE);
while (bytesread > 0)
{ position += bytesread;
if (CeWriteFile(filePtr, buffer, bytesread, ref byteswritten, 0) == ERROR_SUCCESS)
return;
try
{ bytesread = localFileStream.Read(buffer, 0, BUFFER_SIZE);
}
catch
{ bytesread = 0;
}
}
}
}
finally
{ CeRapiUninit();
}
}
To use the code above you will have to know the full path of the file on the desktop. I hope you found this useful.