public bool DownloadFile(Google.Apis.Drive.v2.Data.File myFile, string BestandsNaam)
{
bool Succes = false;
m_File = myFile;
m_BestandsNaam = BestandsNaam;
try
{
HttpWebRequest myRequest = (HttpWebRequest)WebRequest.Create(new Uri(myFile.DownloadUrl));
m_Authenticator.ApplyAuthenticationToRequest(myRequest);
m_State = new GRequestState(BUFFER_SIZE);
m_State.Request = myRequest;
m_State.WriteStream = System.IO.File.OpenWrite(BestandsNaam);
m_State.ProgressEvent += ProgressEvent;
m_State.FinishedEvent += FinishedEvent;
IAsyncResult myResult = (IAsyncResult)myRequest.BeginGetResponse(new AsyncCallback(RespCallback), m_State);
}
catch (Exception ex)
{
ErrorDump.AddError(System.IntPtr.Zero, "GDownload.cs", "DownloadFile", ex);
if (FinishedEvent != null)
{
FinishedEvent(new DriveFinishedEventArgs(false, "Fout bij downloaden", ex));
}
}
return(Succes);
}
private static void RespCallback(IAsyncResult AsyncResult)
{
GRequestState myState = ((GRequestState)(AsyncResult.AsyncState));
try
{
WebRequest myRequest = myState.Request;
string myDescription = "";
string myContentLength = "";
HttpWebResponse myResponse = ((HttpWebResponse)(myRequest.EndGetResponse(AsyncResult)));
myState.Response = myResponse;
myDescription = myResponse.StatusDescription;
myState.TotalBytes = myState.Response.ContentLength;
myContentLength = myState.Response.ContentLength.ToString();
Stream myResponseStream = myState.Response.GetResponseStream();
myState.StreamResponse = myResponseStream;
IAsyncResult myIAsyncResult = myResponseStream.BeginRead(myState.BufferRead, 0, BUFFER_SIZE, new AsyncCallback(ReadCallback), myState);
return;
}
catch (Exception ex)
{
ErrorDump.AddError(System.IntPtr.Zero, "GDownload.cs", "RespCallback", ex);
if (myState.FinishedEvent != null)
{
myState.FinishedEvent(new DriveFinishedEventArgs(false, "Fout bij downloaden", ex));
}
}
}
private static void ReadCallback(IAsyncResult AsyncResult)
{
GRequestState myState = ((GRequestState)(AsyncResult.AsyncState));
try
{
Stream myResponseStream = myState.StreamResponse;
int myBytesRead = myResponseStream.EndRead(AsyncResult);
myState.WriteStream.Write(myState.BufferRead, 0, myBytesRead);
if (myBytesRead > 0)
{
myState.BytesRead += myBytesRead;
double myPctComplete = ((double)myState.BytesRead / (double)myState.TotalBytes) * 100.0f;
if (myState.ProgressEvent != null)
{
myState.ProgressEvent(new DriveProgressEventArgs(myPctComplete));
}
IAsyncResult myIAsyncResult = myResponseStream.BeginRead(myState.BufferRead, 0, BUFFER_SIZE, new AsyncCallback(ReadCallback), myState);
return;
}
else
{
myState.WriteStream.Close();
myState.StreamResponse.Close();
myState.Response.Close();
if (myState.FinishedEvent != null)
{
myState.FinishedEvent(new DriveFinishedEventArgs(true));
}
}
}
catch (Exception ex)
{
ErrorDump.AddError(System.IntPtr.Zero, "GDownload.cs", "ReadCallback", ex);
if (myState.FinishedEvent != null)
{
myState.FinishedEvent(new DriveFinishedEventArgs(false, "Fout bij downloaden", ex));
}
}
}
