I'm currently working on a method that gives the user the possibility to add a handscanner to a dicitionary in order to scan some barcodes with it. (before i started the scanners were hardcoded in the dictionary). my colleague from which i got this project, implemented the rawinput_dll in order to get all of the necessary data from the barcode scanner. The method to get the data is shown below:
private void OnKeyPressed(object sender, RawInputEventArg e)
{
if (!Scanners.ContainsKey(e.KeyPressEvent.DeviceName))
{
return;
}
else if (Scanners.ContainsKey(e.KeyPressEvent.DeviceName))
{
if (e.KeyPressEvent.KeyPressState == "MAKE")
{
return;
}
if (e.KeyPressEvent.VKeyName != "\n")
{
scanNumber += e.KeyPressEvent.VKeyName;
return;
}
devID = e.KeyPressEvent.DeviceName;
Debug.Print(devID);
Aufrufen(scanNumber);
scanNumber = "";
}
}
Basically there are three classes in this program (FrmMenu, FrmSettings and a Class for the Scanner itself). If you want to add settings for the program you click on a button that opens up a new instance of FrmSettings
private void BtnSettings_Click(object sender, EventArgs e)
{
FrmSettings settings = new FrmSettings();
settings.ShowDialog();
settings.BtnSave_Click(sender, e);
settings.Dispose();
}
In this form there 2 buttons where you can choose if you want to add a scanner that scans even numbers or one that scans odd ones. If you press one of the buttons you need to scan a barcode in order to get the information (VID of Scanner) which is used as key to add the new scanner to the dictionary.
private void OnKeyPressed(object sender, RawInputEventArg e)
{
if (newScanner == true)
{
devIDnew = e.KeyPressEvent.DeviceName;
scannerAnlegen(devIDnew);
}
}
scannerAnlegen is the methode that adds the scanner to the dict.
public void scannerAnlegen(string devIDnew)
{
if(EvenOrOdd == true)
{
Scanner ger = new Scanner("dev3", "even");
FrmMenu.Scanners.Add(devIDnew, ger);
newScanner = false;
}
else
{
Scanner ug = new Scanner("dev4", "odd");
FrmMenu.Scanners.Add(devIDnew, ug);
newScanner = false;
}
}
my problem rn is, that it seems like i cant get out of this OneKeyPressed method of the Settings class. the logic of the OneKeyPressed method of the FrmMenu Class is that it can only proceed if the scanner is in the dictionary. Adding the scanner seems to work because when i debug and try to add one scanner the second time it throws and exception and says something like "element with this key already added". But why does this code doesn't continue then?
Related
Background: I'm creating an app that allows our other techs to quickly install a dozen or so programs within one simple GUI. I am embedding the installers of those apps within my main program. (not that it matters)
I created a separate class file (IsOfficeInstalled.cs) that gets called when a user clicks on a button to install Office. Here's the code in that file:
class IsOfficeInstalled
{
public static bool check()
{
RegistryKey key = Registry.LocalMachine.OpenSubKey(#"SOFTWARE\Microsoft\Windows\CurrentVersion\App Paths\Winword.exe");
if (key != null)
{
key.Close();
}
return key != null; }}
In my MainWindow.xaml file, I am trying to call the "IsOfficeInstalled" function and perform one of two actions based on the return value. This is where I am confused. The code in my button event looks like the following:
private void btn_InstallOffice_Click(object sender, RoutedEventArgs e)
if (IsOfficeInstalled.check())
{
//If yes, then perform some code
}
else
{
//If no, then perform some different code
}
Where I need help is, getting the true/false result back from the "IsOfficeInstalled" function so my code in the "btn_InstallOffice_Click" function will know which condition to execute.
I'm not sure if I'm understanding your question. Are you looking for a simple if statement?
private void btn_InstallOffice_Click(object sender, RoutedEventArgs e)
{
if (IsOfficeInstalled.check())
{
//If yes, then perform some code
}
else
{
//If no, then perform some different code
}
}
The problem is with the button:contains('Deal') selector, the button containing deal does exist on the page and Watin can find it without problems when running in main thread.
// Add bet, deal cards and wait for animation
private void dealCards()
{
// Start the game if chip exists
if (browser.Image(Find.BySrc(chipURL)).Exists)
{
browser.Image(Find.BySrc(chipURL)).Click();
// This is where the thread stops
browser.Button(Find.BySelector("button:contains('Deal')")).Click();
Thread.Sleep(dealCardsAnimationTime);
if (Convert.ToInt32(browser.Span(Find.ByClass("player-points")).Text) == 21)
{
consoleTextBox.AppendText("You won by blackjack.");
gameOver = true;
}
return;
}
}
Update:
Browser is a Internet Explore window that I interact with using WatiN, other than the UI changes, the problem seems to be that WatiN can't find the button.
However it's still somewhat related to multithreading, as the same code works fine without multithreading and the element that it's searching for does exist.
Update 2: Changed title and description of problem as the old one appeared to be unrelated.
Context ( in case it's necessary )
// When bet button is clicked
private void button2_Click(object sender, EventArgs e)
{
blackjackThread = new Thread(blackjackGame);
if (dealInProgress == false)
{
blackjackThread.Start();
// blackjackGame();
}
}
// Blackjack deal handler
private void blackjackGame()
{
consoleTextBox.AppendText("\r\n");
resetVariables();
dealCards();
if (gameOver == true)
{
checkResult();
dealInProgress = false;
blackjackThread.Abort();
return;
}
checkCards();
logPoints();
while (gameOver == false)
{
botAction();
}
checkResult();
dealInProgress = false;
blackjackThread.Abort();
return;
}
I am using the TAPI 2.0 wrapper from JulMar (https://atapi.codeplex.com/) and I'm having trouble with it.
The Initialization
void initTAPI()
{
myTAPI = new TapiManager("GetCaller");
if (!myTAPI.Initialize())
{
MessageBox.Show("FAILED!");
}else
{
name = myTAPI.Lines[0].Name;
lineName = (myTAPI != null && myTAPI.Lines.Length > 0 ? name : string.Empty);
foreach(TapiLine line in myTAPI.Lines)
{
line.NewCall += this.OnNewCall;
line.Ringing += this.OnRinging;
line.CallStateChanged += this.OnCallState;
line.CallInfoChanged += this.OnCallInfo;
}
MessageBox.Show(lineName);
}
}
So I get the lineName. When I now dial a number through the program, it fires
OnCallState
private void OnCallState(object sender, CallStateEventArgs e)
{
if (InvokeRequired == true)
{
this.BeginInvoke(new EventHandler<CallStateEventArgs>(this.OnCallState), new object[] { sender, e });
return;
}
label1.Text = "Outgoing Call...";
}
But what I actually want to do is to get the number of an incoming call, but OnCallInfo does not get fired.
OnCallInfo
private void OnCallInfo(object sender, CallInfoChangeEventArgs e)
{
if (InvokeRequired == true)
{
this.BeginInvoke(new EventHandler<CallInfoChangeEventArgs>(this.OnCallInfo), new object[] { sender, e });
return;
}
label1.Text = "Incoming Call...";
}
It says somehwere, that it only works with x86, so I changed the target but still no success.
PS: I have a call manager (ProCall) installed on the same machine, that tells me when someone calls, so I should be able to get the info in c# as well?
Here is the whole code if someone is interested: http://pastebin.com/Q5W5iGun
Depending on TSP, you may get call info messages, but TAPI does not force the driver to do this. So some TSP make you get the info yourself. In the Win32 API this is done via lineGetCallInfo.
After a quick look in this atapi wrapper, this happens in the GatherCallInfo method of the TapiCall class. However I can see no way to trigger this manually in this wrapper. You would need to modify the atapi source to make this a public method.
You can use example from TAPI which do the same. The only difference is new line.Monitor() method
foreach (TapiLine line in tapiManager.Lines)
{
try
{
line.NewCall += OnNewCall;
line.CallStateChanged += OnCallStateChanged;
line.CallInfoChanged += OnCallInfoChanged;
line.Monitor();
}
catch (TapiException ex)
{
LogError(ex.Message);
}
}
For further reading read this https://atapi.codeplex.com/SourceControl/latest#Atapi/trunk/source/test/TcMon/TapiMonitorForm.cs
I'm trying to build a TAPI based phone call system using JulMar's Atapi x86. One of the functions is to pop a specific form on an inbound call. However, whenever the form pops, it comes up incorrect, as shown below (I have tried several forms as a test and they all do the same thing). There is no error, nothing in the output window to suggest what the issue is.
Code:
private void incomingcall(object sender, NewCallEventArgs e)
{
string phonenumber = e.Call.CallerId; //get the phone number of the call
SqlCommand getincoming = new SqlCommand(Querystrings.getincomingquery(), DB);
getincoming.Parameters.AddWithValue("##TELEPHONE", phonenumber);
DataTable results = new DataTable();
try
{
DB.Open();
using (var results = getincoming.ExecuteReader())
{
results.Load(results);
}
}
catch (Exception ex)
{
Inbound ib = new Inbound(phonenumber, null);
ib.Show();
}
finally
{
DB.Close();
}
if (results.Rows.Count == 1)
{
loadcontactrequest(Convert.ToInt32(results.Rows[0].ItemArray[0]), phonenumber);
}
else
{
loadinbound(phonenumber, results);
}
}
I have loaded these forms outside of this function at other points, meaning it is something to do with this function. Does anybody know where I'm going wrong?
EDIT:
private void loadcontactrequest(int ContactID, string phonenumber)
{
ContactRequest cr = new ContactRequest(ContactID, Global.loginbound("Single customer found", phonenumber));
cr.Show();
}
These functions have been tested elsewhere and work correctly individually, I believe it might be TAPI related.
EDIT 2 - Delegate:
public static void inittapi()
{
if (TestOptions.notapi)
return;
tapi = new TapiManager("Omitted");
tapi.Initialize();
foreach (TapiLine ad in tapi.Lines) //Get all lines available to this PC
{
if (ad.Name.ToUpper().Contains("Omitted"))
{
phoneline = ad;
phoneline.Open(MediaModes.All); //Open the phone line for making and receiving calls
phoneline.NewCall += new EventHandler<NewCallEventArgs>(new TAPI().incomingcall); //Add the incoming call event handler
}
}
}
It's possible that this event is triggered on a different thread than the UI thread of your application.
Modify the method like this to test whether this is the problem:
private void incomingcall(object sender, NewCallEventArgs e)
{
Form form;
if(Application.OpenForms.Count > 0)
{
form = Application.OpenForms[0];
}
if (form != null && form.InvokeRequired)
{
form.BeginInvoke(new Action(() => { incomingcall(sender, e); }));
return;
}
// Your current code goes here
}
This will identify that we are in a different thread than your main form (form) was created on and then execute the function again on the main form's thread.
I'm currently developing an app for Windows Phone 7.1, and need to save some data for when the user quits the app.
The app is pretty straightforward: the MainPage is the first thing the user sees, in which they select one of four shopping centers. The next page asks them where they have parked their car and stores it as a String variable. The last page loads that String variable and displays back to the user the relevant information, along with a timer that has been ongoing since launching the app.
What I want to save is the user-input data and the timer value when the user leaves the app, so that when launching it again, it automatically shows the last page with the user's info in it.
I've been playing around with the generated Application_Launching, Activated, etc events, but so far can't get something to work. Any help would be greatly appreciated.
Edit: Here's some code that I have so far (hasn't led me anywhere)
void LoadSettings()
{
IsolatedStorageSettings settings = IsolatedStorageSettings.ApplicationSettings;
String mall;
String level;
String letter;
String number;
if (settings.TryGetValue<String>("mall", out mall))
{
_mall = mall;
}
if (settings.TryGetValue<String>("level", out level))
{
_level = level;
}
if (settings.TryGetValue<String>("mall", out letter))
{
_letter = letter;
}
if (settings.TryGetValue<String>("mall", out number))
{
_number = number;
}
}
void SaveSettings()
{
IsolatedStorageSettings settings = IsolatedStorageSettings.ApplicationSettings;
if (_mall != null)
{
settings["mall"] = (_mall as String);
settings["level"] = (_level as String);
settings["letter"] = (_letter as String);
settings["number"] = (_number as String);
}
}
That's in my App.xaml.cs class
You have to look at the events in your app.cs file, but it also depends on what you want when tha application is Activated, Deactived, Closed and launched.
// Code to execute when the application is launching (eg, from Start)
// This code will not execute when the application is reactivated
private void Application_Launching(object sender, LaunchingEventArgs e)
{
LoadSettings();
}
// Code to execute when the application is activated (brought to foreground)
// This code will not execute when the application is first launched
private void Application_Activated(object sender, ActivatedEventArgs e)
{
if (e.IsApplicationInstancePreserved)
{
//The application was dormant and state was automatically preserved
}
else
{
LoadSettings();
}
}
// Code to execute when the application is deactivated (sent to background)
// This code will not execute when the application is closing
private void Application_Deactivated(object sender, DeactivatedEventArgs e)
{
SaveSettings();
}
// Code to execute when the application is closing (eg, user hit Back)
// This code will not execute when the application is deactivated
private void Application_Closing(object sender, ClosingEventArgs e)
{
SaveSettings();
}