/// <summary>
/// Send an encryption report to the scanner and show the results...
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void m_buttonGetEncryptionReport_Click(object sender, EventArgs e)
{
bool blSuccess;
long lJsonErrorIndex = 0;
ApiCmd apicmd;
JsonLookup jsonlookup;
// Issue the command...
apicmd = new ApiCmd(m_dnssddeviceinfo);
m_twainlocalscannerclient.ClientScannerSendTask("{\"actions\":[{\"action\":\"encryptionReport\"}]}", ref apicmd);
blSuccess = m_twainlocalscannerclient.ClientCheckForApiErrors("ClientScannerSendTask", ref apicmd);
if (!blSuccess)
{
MessageBox.Show("Command failed...", Config.GetResource(m_resourcemanager, "strFormScanTitle"));
return;
}
// Parse the JSON...
jsonlookup = new JsonLookup();
blSuccess = jsonlookup.Load(apicmd.GetHttpResponseData(), out lJsonErrorIndex);
if (!blSuccess)
{
MessageBox.Show("JSON error at: " + lJsonErrorIndex, Config.GetResource(m_resourcemanager, "strFormScanTitle"));
return;
}
// Show the result...
string szTask = jsonlookup.Get("results.session.task");
if (!string.IsNullOrEmpty(szTask))
{
MessageBox.Show(szTask, Config.GetResource(m_resourcemanager, "strFormScanTitle"));
}
}
///////////////////////////////////////////////////////////////////////////////
// Protected Methods (ServiceBase overrides)...
///////////////////////////////////////////////////////////////////////////////
#region Protected Methods (ServiceBase overrides)...
/// <summary>
/// Register...
///
/// TBD: Obviously this needs a way to communicate with
/// the user other than console stuff, so fix that...
/// </summary>
/// <param name="a_iCommand"></param>
protected override void OnCustomCommand(int a_iCommand)
{
int iScanner;
long lResponseCharacterOffset;
string szScanners;
string szNumber;
string szText;
JsonLookup jsonlookup;
ApiCmd apicmd;
// Turn the buttons off...
Display("Looking for Scanners...");
// Get the list of scanners...
szScanners = m_scanner.GetAvailableScanners("getproductnames", "");
if (szScanners == null)
{
Display("No scanners found...");
return;
}
try
{
jsonlookup = new JsonLookup();
jsonlookup.Load(szScanners, out lResponseCharacterOffset);
}
catch
{
Display("No scanners found...");
return;
}
// Show all the scanners, and then ask for the number of
// the one to use as the new default...
szText = "";
for (iScanner = 0; ; iScanner++)
{
// Get the next scanner...
string szScanner = jsonlookup.Get("scanners[" + iScanner + "].twidentityProductName");
if (string.IsNullOrEmpty(szScanner))
{
szScanner = jsonlookup.Get("scanners[" + iScanner + "].sane");
}
// We're out of stuff...
if (string.IsNullOrEmpty(szScanner))
{
break;
}
// If this is the current default, make a note of it...
if (m_scanner.GetTwainLocalTy() == szScanner)
{
szText = (iScanner + 1) + ": " + szScanner + " ***DEFAULT***";
Display(szText);
}
// Otherwise, just list it...
else
{
Display((iScanner + 1) + ": " + szScanner);
}
}
// Finish the text for the prompt...
if (string.IsNullOrEmpty(szText))
{
szText =
"Enter a number from 1 to " + iScanner + Environment.NewLine +
"(there is no current default)";
}
else
{
szText =
"Enter a number from 1 to " + iScanner + Environment.NewLine +
szText;
}
// Select the default...
int iNumber = 0;
for (; ;)
{
// Prompt the user...
szNumber = "";
bool blOk = InputBox
(
"Select Default Scanner",
szText,
ref szNumber
);
// The user wants out...
if (!blOk)
{
Display("Canceled...");
break;
}
// Check the result...
if (!int.TryParse(szNumber, out iNumber))
{
Display("Please enter a number in the range 1 to " + iScanner);
continue;
}
// Check the range...
if ((iNumber < 1) || (iNumber > iScanner))
{
Display("Please enter a number in the range 1 to " + iScanner);
continue;
}
// We have what we want...
break;
}
// Do a deep inquiry on the selected scanner...
szScanners = m_scanner.GetAvailableScanners("getinquiry", jsonlookup.Get("scanners[" + (iScanner - 1) + "].twidentityProductName"));
if (szScanners == null)
{
Display("We are unable to use the selected scanner...");
return;
}
try
{
jsonlookup = new JsonLookup();
jsonlookup.Load(szScanners, out lResponseCharacterOffset);
}
catch
{
Display("We are unable to use the selected scanner...");
return;
}
// See if the user wants to update their note...
string szNote = m_scanner.GetTwainLocalNote();
if ((iNumber >= 1) && (iNumber <= iScanner))
{
bool blOk = InputBox
(
"Enter Note",
"Your current note is: " + m_scanner.GetTwainLocalNote() + Environment.NewLine +
"Type a new note, or just press the Enter key to keep what you have.",
ref szNote
);
if (string.IsNullOrEmpty(szNote))
{
szNote = m_scanner.GetTwainLocalNote();
}
}
// Register it, make a note if it works by clearing the
// no devices flag...
apicmd = new ApiCmd();
if (m_scanner.RegisterScanner(jsonlookup, 0, szNote, ref apicmd))
{
m_blNoDevices = false;
Display("Done...");
}
else
{
Display("Registration failed for: " + iNumber);
}
// Prompt...
Display("Press the enter key to finish...");
Console.In.ReadLine();
}
/// <summary>
/// Monitor for work...
/// </summary>
/// <param name="sender"></param>
internal void MonitorTasks(object sender)
{
bool blSuccess;
string szJson;
string szDeviceName;
long lResponseCharacterOffset;
XmppCallback xmppcallback = (XmppCallback)sender;
JsonLookup jsonlookup = new JsonLookup();
TwainLocalScanner.Command command;
// Load the data...
if (jsonlookup.Load(xmppcallback.m_szData, out lResponseCharacterOffset))
{
// Check out the event type...
string szType = jsonlookup.Get("type");
if (szType == null)
{
Log.Error("XMPP event received has no type in it...");
Log.Error(xmppcallback.m_szData);
return;
}
// Our event types...
switch (szType)
{
//
// Nope, gots no clue...
//
default:
Display("");
Display("Unrecognized command: " + szType);
Log.Error("XMPP event has unrecognized type...");
Log.Error(xmppcallback.m_szData);
return;
//
// Our command has been canceled, we have to acknowledge that
// and either kill it or let it finish. We opt to kill. In
// the worst case scenerio we'll try to update a canceled
// command some place else in the code. We need to be able
// to handle that pressure anyways...
//
case "COMMAND_CANCELED":
case "COMMAND_CANCELLED":
Display("");
Display("Command cancelled...");
szJson = jsonlookup.Get("method");
if (string.IsNullOrEmpty(szJson))
{
blSuccess = jsonlookup.Load(szJson, out lResponseCharacterOffset);
if (blSuccess)
{
ApiCmd apicmd = new ApiCmd(null);
//apicmd.SetState("canceled", null);
}
}
return;
//
// Our command has expired, we don't need to take any additional
// action, because to get this far we must never have seen or
// acknowledged the command...
//
case "COMMAND_EXPIRED":
Display("");
Display("Command expired...");
Log.Error("XMPP event COMMAND_EXPIRED...");
Log.Error(xmppcallback.m_szData);
return;
//
// Not supported yet...
//
case "DEVICE_ACL_UPDATED":
Display("");
Display("ACL updated...");
Log.Error("XMPP event DEVICE_ACL_UPDATED not supported yet...");
Log.Error(xmppcallback.m_szData);
return;
//
// Somebody doesn't like us anymore...
//
case "DEVICE_DELETED":
// Well, we'd better stop...
MonitorTasksStop();
Display("");
Display("Stop (a device has been deleted)...");
// Refresh our device list...
Thread.Sleep(1000);
bool blNoDevices = RefreshDeviceList();
// Notify the caller...
if (m_stopnotification != null)
{
m_stopnotification(blNoDevices);
}
return;
//
// We have something new to work on, drop down so that we're
// not doing all this work in the switch statement...
//
case "COMMAND_CREATED":
break;
}
// The command was included in the notification, so let's start
// doing work with it. We'll begin by collecting some info...
string szState = jsonlookup.Get("command.state");
string szDeviceId = jsonlookup.Get("deviceId");
// Find the match in our list...
szDeviceName = m_twainlocalscanner.GetTwainLocalTy();
// Did we find it?
if (!string.IsNullOrEmpty(szDeviceName))
{
// Build the command...
command = new TwainLocalScanner.Command();
command.szDeviceName = szDeviceName;
command.szJson = jsonlookup.Get("method");
// Display it...
switch (m_iDiagnostics)
{
default:
break;
case 1:
if (command.szJson.Contains("readImageBlock") && command.szJson.Contains("Metadata"))
{
Display("Sending an image...");
}
else if (command.szJson.Contains("startCapturing"))
{
Display(" ");
Display("Scanning started...");
}
else if (command.szJson.Contains("stopCapturing"))
{
Display("Scanning stopped...");
}
else if (command.szJson.Contains("createSession"))
{
Display(" ");
Display("*** Scanner locked ***");
}
else if (command.szJson.Contains("closeSession"))
{
Display(" ");
Display("*** Scanner unlocked ***");
}
break;
case 2:
Display(" ");
Display("XMPP");
Display(command.szDeviceName + ": " + command.szJson);
break;
}
// Dispatch it...
//m_twainlocalscanner.DeviceDispatchCommand(command, ref httplistenercontext);
}
}
}
/// <summary>
/// Register a device for use...
/// </summary>
public void Register()
{
int iScanner;
long lResponseCharacterOffset;
string szScanners;
string szNumber;
string szText;
JsonLookup jsonlookup;
ApiCmd apicmd;
// Prompt the user to turn on their scanner, we don't care
// about the result...
szText = "";
Display(Environment.NewLine);
InputBox
(
"Power-On Scanner:",
"Please turn your TWAIN scanner on, when it's ready press the ENTER key...",
ref szText
);
// Turn the buttons off...
Display(Environment.NewLine);
Display("Registering (please wait, if there are a lot of scanner drivers, this can take a while)...");
// Get the list of scanners...
szScanners = m_scanner.GetAvailableScanners();
if (string.IsNullOrEmpty(szScanners))
{
Display("No devices found...");
return;
}
try
{
jsonlookup = new JsonLookup();
jsonlookup.Load(szScanners, out lResponseCharacterOffset);
}
catch
{
Display("No devices found...");
return;
}
// Show all the scanners, and then ask for the number of
// the one to use as the new default...
szText = "";
int iNumber = 0;
for (iScanner = 0; ; iScanner++)
{
// Get the next scanner...
string szScanner = jsonlookup.Get("scanners[" + iScanner + "].twidentity");
if (string.IsNullOrEmpty(szScanner))
{
szScanner = jsonlookup.Get("scanners[" + iScanner + "].sane");
}
// We're out of stuff...
if (string.IsNullOrEmpty(szScanner))
{
break;
}
// If this is the current default, make a note of it...
if (m_scanner.GetTwainLocalTy() == szScanner)
{
Display((iScanner + 1) + ": " + szScanner + " ***DEFAULT***");
iNumber = iScanner + 1;
}
// Otherwise, just list it...
else
{
Display((iScanner + 1) + ": " + szScanner);
}
}
// Build the text for the prompt...
if (iScanner == 1)
{
szText =
"Enter 1 to select this scanner." + Environment.NewLine +
"Enter 0 to disable the system." + Environment.NewLine +
"Enter by itself (with no number) keeps the current setting.";
}
else if (iScanner == 2)
{
szText =
"Enter 1 or 2 to select a scanner." + Environment.NewLine +
"Enter 0 to disable the system." + Environment.NewLine +
"Enter by itself (with no number) keeps the current setting.";
}
else
{
szText =
"Enter a number from 1 to " + iScanner + " to select a scanner." + Environment.NewLine +
"Enter 0 to disable the system." + Environment.NewLine +
"Enter by itself (with no number) keeps the current setting.";
}
// Have the user select a scanner...
for (;;)
{
// Prompt the user...
szNumber = "";
Display(Environment.NewLine);
bool blOk = InputBox
(
"Select Default Scanner:",
szText,
ref szNumber
);
// The user wants out...
if (!blOk)
{
break;
}
// Check the result...
if (!int.TryParse(szNumber, out iNumber))
{
Display("That wasn't a number...");
continue;
}
// Check the range...
if ((iNumber < 0) || (iNumber > iScanner))
{
Display("Please enter a valid number...");
continue;
}
// We have what we want...
break;
}
// See if the user wants to update their note...
string szNote = m_scanner.GetTwainLocalNote();
if ((iNumber >= 1) && (iNumber <= iScanner))
{
Display(Environment.NewLine);
bool blOk = InputBox
(
"Enter Note:",
(string.IsNullOrEmpty(m_scanner.GetTwainLocalNote()) ? "You have no note." : "Your current note is: " + m_scanner.GetTwainLocalNote()) + Environment.NewLine +
"Type a new note, or just press the Enter key to keep what you have.",
ref szNote
);
if (string.IsNullOrEmpty(szNote))
{
szNote = m_scanner.GetTwainLocalNote();
}
}
// Register it, make a note if it works by clearing the
// no devices flag...
apicmd = new ApiCmd(null);
if (m_scanner.RegisterScanner(jsonlookup, iNumber - 1, szNote, ref apicmd))
{
m_blNoDevices = false;
Display("Done...");
}
else
{
Display("Registration failed for: " + iNumber);
}
// Prompt...
Display(Environment.NewLine);
Display("Press the enter key to finish...");
Console.In.ReadLine();
}
/// <summary>
/// Register a scanner...
/// </summary>
/// <param name="a_jsonlookup">the TWAIN driver data</param>
/// <param name="a_iScanner">the index of the driver we're interested in</param>
/// <param name="a_szNote">a note from the user</param>
/// <param name="a_apicmd">info about the command</param>
/// <returns>true on success</returns>
public bool RegisterScanner(JsonLookup a_jsonlookup, int a_iScanner, string a_szNote, ref ApiCmd a_apicmd)
{
// Register it...
if (!m_twainlocalscanner.DeviceRegister(a_jsonlookup, a_iScanner, a_szNote, ref a_apicmd))
{
Log.Error("DeviceRegister failed...");
return(false);
}
// Save the file...
m_twainlocalscanner.DeviceRegisterSave();
// All done...
return(true);
}
/// <summary>
/// Register a device for use...
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void m_buttonRegister_Click(object sender, EventArgs e)
{
int iScanner;
long lResponseCharacterOffset;
string szNumber;
string szScanners;
string szText;
JsonLookup jsonlookup;
ApiCmd apicmd;
DialogResult dialogresult;
// Are you sure?
dialogresult = MessageBox.Show("Do you want to register a TWAIN driver? Please note that depending on how many drivers are installed, this may take a while.", "Register", MessageBoxButtons.YesNo);
if (dialogresult == DialogResult.No)
{
return;
}
// Turn the buttons off...
SetButtons(ButtonState.Undefined);
Display("");
Display("Looking for Scanners (please wait, this can take a while)...");
// Get the list of scanners...
szScanners = m_scanner.GetAvailableScanners();
if (szScanners == null)
{
Display("No devices found...");
return;
}
try
{
jsonlookup = new JsonLookup();
jsonlookup.Load(szScanners, out lResponseCharacterOffset);
}
catch
{
Display("No devices found...");
return;
}
// Show all the scanners, and then ask for the number of
// the one to use as the new default...
szText = "";
for (iScanner = 0;; iScanner++)
{
// Get the next scanner...
string szScanner = jsonlookup.Get("scanners[" + iScanner + "].twidentityProductName");
if (string.IsNullOrEmpty(szScanner))
{
szScanner = jsonlookup.Get("scanners[" + iScanner + "].sane");
}
// We're out of stuff...
if (string.IsNullOrEmpty(szScanner))
{
break;
}
// If this is the current default, make a note of it...
if (m_scanner.GetTwainLocalTy() == szScanner)
{
szText = (iScanner + 1) + ": " + szScanner + " ***DEFAULT***";
Display(szText);
}
// Otherwise, just list it...
else
{
Display((iScanner + 1) + ": " + szScanner);
}
}
// Finish the text for the prompt...
if (string.IsNullOrEmpty(szText))
{
szText =
"Enter a number from 1 to " + iScanner + Environment.NewLine +
"(there is no current default)" + iScanner;
}
else
{
szText =
"Enter a number from 1 to " + iScanner + Environment.NewLine +
szText;
}
// Select the default...
int iNumber = 0;
for (;;)
{
// Prompt the user...
szNumber = "";
dialogresult = InputBox
(
"Select Default Scanner",
szText,
ref szNumber
);
// The user wants out...
if (dialogresult != DialogResult.OK)
{
Display("Canceled...");
break;
}
// Check the result...
if (!int.TryParse(szNumber, out iNumber))
{
Display("Please enter a number in the range 1 to " + iScanner);
continue;
}
// Check the range...
if ((iNumber < 1) || (iNumber > iScanner))
{
Display("Please enter a number in the range 1 to " + iScanner);
continue;
}
// We have what we want...
break;
}
// See if the user wants to update their note...
string szNote = m_scanner.GetTwainLocalNote();
if ((iNumber >= 1) && (iNumber <= iScanner))
{
dialogresult = InputBox
(
"Enter Note",
"Your current note is: " + m_scanner.GetTwainLocalNote() + Environment.NewLine +
"Type a new note, or just press the Enter key to keep what you have.",
ref szNote
);
// The user wants out...
if ((dialogresult != DialogResult.OK) || string.IsNullOrEmpty(szNote))
{
szNote = m_scanner.GetTwainLocalNote();
}
}
// Register it, make a note if it works by clearing the
// no devices flag...
apicmd = new ApiCmd();
if (m_scanner.RegisterScanner(jsonlookup, iNumber - 1, szNote, ref apicmd))
{
m_blNoDevices = false;
Display("Done...");
}
else
{
Display("Registration failed for: " + iNumber);
}
// Fix the buttons...
Display("Registration done...");
if (m_blNoDevices)
{
SetButtons(ButtonState.NoDevices);
}
else
{
SetButtons(ButtonState.WaitingForStart);
}
}
/// <summary>
/// Sends a command to with given arguments to the
/// MPC HC executable process.
/// </summary>
/// <param name="sendCmd"></param>
/// <param name="args"></param>
/// <returns></returns>
private int sendWinMessage(ApiCmd.Send sendCmd, string args)
{
int result = -1;
var dataStruct = packParams((uint)sendCmd, args);
// Initialize unmanged memory to hold the struct.
IntPtr argsPtr = Marshal.AllocHGlobal(Marshal.SizeOf(dataStruct));
try {
// Copy the struct to unmanaged memory.
Marshal.StructureToPtr(dataStruct, argsPtr, false);
// Send message to mpc-hc.exe
result = SendMessage(HWndTo, (uint)WmType.WM_COPYDATA, HWndFrom, argsPtr);
} catch (Exception) {
throw;
} finally {
// Free the unmanaged memory.
Marshal.FreeHGlobal(argsPtr);
}
return result;
}
/// <summary>
/// Select the TWAIN driver to use...
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
public void SelectScanner()
{
int iScanner;
long lResponseCharacterOffset;
string szScanners;
string szText;
JsonLookup jsonlookup;
ApiCmd apicmd;
List <string> lszDrivers = new List <string>();
// Turn the buttons off...
SetButtons(ButtonState.Undefined);
Display("");
Display(Config.GetResource(m_resourcemanager, "errLookingForScanners"));
// Get the list of scanners...
szScanners = m_scanner.GetAvailableScanners("getproductnames", "");
if (szScanners == null)
{
Display(Config.GetResource(m_resourcemanager, "errNoScannersFound"));
SetButtons(ButtonState.NoDevices);
return;
}
try
{
jsonlookup = new JsonLookup();
jsonlookup.Load(szScanners, out lResponseCharacterOffset);
}
catch
{
Display(Config.GetResource(m_resourcemanager, "errNoScannersFound"));
SetButtons(ButtonState.NoDevices);
return;
}
// Show all the scanners, and then ask for the number of
// the one to use as the new default...
szText = "";
string szMessage = "";
string szDefault = "";
for (iScanner = 0; ; iScanner++)
{
// Get the next scanner...
string szScanner = jsonlookup.Get("scanners[" + iScanner + "].twidentityProductName");
if (string.IsNullOrEmpty(szScanner))
{
szScanner = jsonlookup.Get("scanners[" + iScanner + "].sane");
}
// We're out of stuff...
if (string.IsNullOrEmpty(szScanner))
{
break;
}
// If this is the current default, make a note of it...
lszDrivers.Add(szScanner);
if (m_scanner.GetTwainLocalTy() == szScanner)
{
szMessage += (iScanner + 1) + ": " + szScanner + " ***DEFAULT***" + Environment.NewLine;
szText = (iScanner + 1) + ": " + szScanner + " ***DEFAULT***";
szDefault = szScanner;
Display(szText);
}
// Otherwise, just list it...
else
{
szMessage += (iScanner + 1) + ": " + szScanner + Environment.NewLine;
Display((iScanner + 1) + ": " + szScanner);
}
}
// Ask the user to pick a scanner...
FormSelect formselect = new FormSelect(m_resourcemanager, lszDrivers, szDefault, m_scanner.GetTwainLocalNote());
formselect.ShowDialog();
int iNumber = formselect.GetSelectedDriver();
string szNote = formselect.GetNote();
if (iNumber < 0)
{
Display("");
Display(Config.GetResource(m_resourcemanager, "errNoScannersFound"));
SetButtons(ButtonState.NoDevices);
return;
}
// A little sleight of hand to get a busy cursor...
this.Refresh();
Cursor.Current = Cursors.WaitCursor;
this.Refresh();
// Tell the user what we're up to...
Display("");
Display("We're going to ask the scanner some questions.");
Display("This may take a minute...");
// A little sleight of hand to get a busy cursor...
this.Refresh();
Cursor.Current = Cursors.WaitCursor;
this.Refresh();
// Do a deep inquiry on the selected scanner...
szScanners = m_scanner.GetAvailableScanners("getinquiry", jsonlookup.Get("scanners[" + iNumber + "].twidentityProductName"));
if (string.IsNullOrEmpty(szScanners))
{
// We are unable to use the selected scanner. Please make sure your scanner is turned on and connected before trying again.
Display("");
Display(Config.GetResource(m_resourcemanager, "errUnableToUseScanner"));
MessageBox.Show(Config.GetResource(m_resourcemanager, "errUnableToUseScanner"), Config.GetResource(m_resourcemanager, "strFormMainTitle"));
SetButtons(ButtonState.NoDevices);
Cursor.Current = Cursors.Default;
return;
}
try
{
jsonlookup = new JsonLookup();
jsonlookup.Load(szScanners, out lResponseCharacterOffset);
}
catch
{
Display("");
Display(Config.GetResource(m_resourcemanager, "errUnableToUseScanner"));
MessageBox.Show(Config.GetResource(m_resourcemanager, "errUnableToUseScanner"), Config.GetResource(m_resourcemanager, "strFormMainTitle"));
SetButtons(ButtonState.NoDevices);
Cursor.Current = Cursors.Default;
return;
}
// Register it, make a note if it works by clearing the
// no devices flag. Note that the way things work now
// there is only ever one scanner in the list...
apicmd = new ApiCmd();
if (m_scanner.RegisterScanner(jsonlookup, 0, szNote, ref apicmd))
{
m_blNoDevices = false;
Display("Done...");
}
else
{
Display("Registration failed for: " + iNumber);
MessageBox.Show("Registration failed for: " + iNumber, "Error");
}
// Fix the buttons...
Display("Registration done...");
if (m_blNoDevices)
{
SetButtons(ButtonState.NoDevices);
}
else
{
SetButtons(ButtonState.WaitingForStart);
}
}
/// <summary>
/// Register a device for use...
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void m_buttonRegister_Click(object sender, EventArgs e)
{
int iScanner;
long lResponseCharacterOffset;
string szNumber;
string szScanners;
string szText;
JsonLookup jsonlookup;
ApiCmd apicmd;
DialogResult dialogresult;
// Are you sure?
// Do you want to register a TWAIN driver? If so, please make sure your scanner is powered on and connected, and press YES.
dialogresult = MessageBox.Show
(
Config.GetResource(m_resourcemanager, "errRegisterTwainDriver"),
Config.GetResource(m_resourcemanager, "strFormMainTitle"),
MessageBoxButtons.YesNo
);
if (dialogresult == DialogResult.No)
{
return;
}
// Turn the buttons off...
SetButtons(ButtonState.Undefined);
Display("");
Display(Config.GetResource(m_resourcemanager, "errLookingForScanners"));
// Get the list of scanners...
szScanners = m_scanner.GetAvailableScanners("getproductnames", "");
if (szScanners == null)
{
Display(Config.GetResource(m_resourcemanager, "errNoScannersFound"));
SetButtons(ButtonState.NoDevices);
return;
}
try
{
jsonlookup = new JsonLookup();
jsonlookup.Load(szScanners, out lResponseCharacterOffset);
}
catch
{
Display(Config.GetResource(m_resourcemanager, "errNoScannersFound"));
SetButtons(ButtonState.NoDevices);
return;
}
// Show all the scanners, and then ask for the number of
// the one to use as the new default...
szText = "";
for (iScanner = 0 ;; iScanner++)
{
// Get the next scanner...
string szScanner = jsonlookup.Get("scanners[" + iScanner + "].twidentityProductName");
if (string.IsNullOrEmpty(szScanner))
{
szScanner = jsonlookup.Get("scanners[" + iScanner + "].sane");
}
// We're out of stuff...
if (string.IsNullOrEmpty(szScanner))
{
break;
}
// If this is the current default, make a note of it...
if (m_scanner.GetTwainLocalTy() == szScanner)
{
szText = (iScanner + 1) + ": " + szScanner + " ***DEFAULT***";
Display(szText);
}
// Otherwise, just list it...
else
{
Display((iScanner + 1) + ": " + szScanner);
}
}
// Finish the text for the prompt...
if (string.IsNullOrEmpty(szText))
{
szText =
"Enter a number from 1 to " + iScanner + Environment.NewLine +
"(there is no current default)" + iScanner;
}
else
{
szText =
"Enter a number from 1 to " + iScanner + Environment.NewLine +
szText;
}
// Select the default...
int iNumber = 0;
for (;;)
{
// Prompt the user...
szNumber = "";
dialogresult = InputBox
(
"Select Default Scanner",
szText,
ref szNumber
);
// The user wants out...
if (dialogresult != DialogResult.OK)
{
Display("Canceled...");
SetButtons(ButtonState.NoDevices);
break;
}
// Check the result...
if (!int.TryParse(szNumber, out iNumber))
{
Display("Please enter a number in the range 1 to " + iScanner);
continue;
}
// Check the range...
if ((iNumber < 1) || (iNumber > iScanner))
{
Display("Please enter a number in the range 1 to " + iScanner);
continue;
}
// We have what we want...
break;
}
// Tell the user what we're up to...
Display("");
Display("We're going to ask the scanner some questions.");
Display("This may take a minute...");
// Do a deep inquiry on the selected scanner...
szScanners = m_scanner.GetAvailableScanners("getinquiry", jsonlookup.Get("scanners[" + (iNumber - 1) + "].twidentityProductName"));
if (string.IsNullOrEmpty(szScanners))
{
// We are unable to use the selected scanner. Please make sure your scanner is turned on and connected before trying again.
Display("");
Display(Config.GetResource(m_resourcemanager, "errUnableToUseScanner"));
MessageBox.Show(Config.GetResource(m_resourcemanager, "errUnableToUseScanner"), Config.GetResource(m_resourcemanager, "strFormMainTitle"));
SetButtons(ButtonState.NoDevices);
return;
}
try
{
jsonlookup = new JsonLookup();
jsonlookup.Load(szScanners, out lResponseCharacterOffset);
}
catch
{
Display("");
Display(Config.GetResource(m_resourcemanager, "errUnableToUseScanner"));
MessageBox.Show(Config.GetResource(m_resourcemanager, "errUnableToUseScanner"), Config.GetResource(m_resourcemanager, "strFormMainTitle"));
SetButtons(ButtonState.NoDevices);
return;
}
// See if the user wants to update their note...
string szNote = m_scanner.GetTwainLocalNote();
if ((iNumber >= 1) && (iNumber <= iScanner))
{
// Tell the user what we're up to...
Display("");
Display("We're asking what you'd like to call your scanner.");
Display("Please look for a dialog box...");
// Prompt the user...
dialogresult = InputBox
(
"Enter Note",
"Your current note is: " + m_scanner.GetTwainLocalNote() + Environment.NewLine +
"Type a new note, or just press the Enter key to keep what you have.",
ref szNote
);
// The user wants out...
if ((dialogresult != DialogResult.OK) || string.IsNullOrEmpty(szNote))
{
szNote = m_scanner.GetTwainLocalNote();
}
}
// Register it, make a note if it works by clearing the
// no devices flag. Note that the way things work now
// there is only ever one scanner in the list...
apicmd = new ApiCmd();
if (m_scanner.RegisterScanner(jsonlookup, 0, szNote, ref apicmd))
{
m_blNoDevices = false;
Display("Done...");
}
else
{
Display("Registration failed for: " + iNumber);
MessageBox.Show("Registration failed for: " + iNumber, "Error");
}
// Fix the buttons...
Display("Registration done...");
if (m_blNoDevices)
{
SetButtons(ButtonState.NoDevices);
}
else
{
SetButtons(ButtonState.WaitingForStart);
}
}