private void _SetConditionCode(TwIdentity appId, TwCC cc)
{
if (this._handlers.ContainsKey(appId.Id))
{
this._handlers[appId.Id].ConditionCode = cc;
}
else
{
this.ConditionCode = cc;
}
}
private static string _CodeToMessage(TwCC code) {
switch(code) {
case TwCC.Success:
return "It worked!";
case TwCC.Bummer:
return "Failure due to unknown causes.";
case TwCC.LowMemory:
return "Not enough memory to perform operation.";
case TwCC.NoDS:
return "No Data Source.";
case TwCC.MaxConnections:
return "DS is connected to max possible applications.";
case TwCC.OperationError:
return "DS or DSM reported error, application shouldn't.";
case TwCC.BadCap:
return "Unknown capability.";
case TwCC.BadProtocol:
return "Unrecognized MSG DG DAT combination.";
case TwCC.BadValue:
return "Data parameter out of range.";
case TwCC.SeqError:
return "DG DAT MSG out of expected sequence.";
case TwCC.BadDest:
return "Unknown destination Application/Source in DSM_Entry.";
case TwCC.CapUnsupported:
return "Capability not supported by source.";
case TwCC.CapBadOperation:
return "Operation not supported by capability.";
case TwCC.CapSeqError:
return "Capability has dependancy on other capability.";
/* Added 1.8 */
case TwCC.Denied:
return "File System operation is denied (file is protected).";
case TwCC.FileExists:
return "Operation failed because file already exists.";
case TwCC.FileNotFound:
return "File not found.";
case TwCC.NotEmpty:
return "Operation failed because directory is not empty.";
case TwCC.PaperJam:
return "The feeder is jammed.";
case TwCC.PaperDoubleFeed:
return "The feeder detected multiple pages.";
case TwCC.FileWriteError:
return "Error writing the file (meant for things like disk full conditions).";
case TwCC.CheckDeviceOnline:
return "The device went offline prior to or during this operation.";
default:
return "Unknown error.";
}
}
private static string _CodeToMessage(TwCC code)
{
switch (code)
{
case TwCC.Success:
return("It worked!");
case TwCC.Bummer:
return("Failure due to unknown causes.");
case TwCC.LowMemory:
return("Not enough memory to perform operation.");
case TwCC.NoDS:
return("No Data Source.");
case TwCC.MaxConnections:
return("DS is connected to max possible applications.");
case TwCC.OperationError:
return("DS or DSM reported error, application shouldn't.");
case TwCC.BadCap:
return("Unknown capability.");
case TwCC.BadProtocol:
return("Unrecognized MSG DG DAT combination.");
case TwCC.BadValue:
return("Data parameter out of range.");
case TwCC.SeqError:
return("DG DAT MSG out of expected sequence.");
case TwCC.BadDest:
return("Unknown destination Application/Source in DSM_Entry.");
case TwCC.CapUnsupported:
return("Capability not supported by source.");
case TwCC.CapBadOperation:
return("Operation not supported by capability.");
case TwCC.CapSeqError:
return("Capability has dependancy on other capability.");
/* Added 1.8 */
case TwCC.Denied:
return("File System operation is denied (file is protected).");
case TwCC.FileExists:
return("Operation failed because file already exists.");
case TwCC.FileNotFound:
return("File not found.");
case TwCC.NotEmpty:
return("Operation failed because directory is not empty.");
case TwCC.PaperJam:
return("The feeder is jammed.");
case TwCC.PaperDoubleFeed:
return("The feeder detected multiple pages.");
case TwCC.FileWriteError:
return("Error writing the file (meant for things like disk full conditions).");
case TwCC.CheckDeviceOnline:
return("The device went offline prior to or during this operation.");
default:
return("Unknown error.");
}
}
/// <summary>
/// Initializes a new instance of the <see cref="TwainException"/> class.
/// </summary>
/// <param name="cc">The condition code.</param>
/// <param name="rc">The return code.</param>
internal TwainException(TwCC cc, TwRC rc) : this(TwainException._CodeToMessage(cc))
{
this.ConditionCode = cc;
this.ReturnCode = rc;
}
/// <summary>
/// Initializes a new instance of the <see cref="TwainException"/> class.
/// </summary>
/// <param name="code">The code.</param>
internal TwainException(TwCC code) : this(TwainException._CodeToMessage(code))
{
}
/// <summary>
/// Initializes a new instance of the <see cref="DataSourceException"/> class.
/// </summary>
/// <param name="rc">The TWRC_xxxx.</param>
/// <param name="cc">The TWCC_xxxx.</param>
/// <param name="message">The message.</param>
public DataSourceException(TwRC rc, TwCC cc, string message) : base(message)
{
this.ReturnCode = rc;
this.ConditionCode = cc;
}
/// <summary>
/// Initializes a new instance of the <see cref="DataSourceException"/> class.
/// </summary>
/// <param name="rc">The TWRC_xxxx.</param>
/// <param name="cc">The TWCC_xxxx.</param>
public DataSourceException(TwRC rc, TwCC cc) : this(rc, cc, string.Empty)
{
}
/// <summary>
/// Initializes a new instance of the <see cref="TwainException"/> class.
/// </summary>
/// <param name="code">The code.</param>
internal TwainException(TwCC code):this(TwainException._CodeToMessage(code)) {
}
