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run a method on other application

solomon8528-Aug-10 0:47

solomon85

28-Aug-10 0:47

how to run a method on other executing application?
(invoke the method and send Parameters)

Re: run a method on other application

Eddy Vluggen28-Aug-10 3:16

Eddy Vluggen

28-Aug-10 3:16

solomon85 wrote:
how to run a method on other executing application?(invoke the method and send Parameters)

You'd need to be more specific than that. Let's name the first application making the call AppA, and the other executing application AppB.

You can load AppB as if it were a library. In that case, the method would be called by AppA, regardless whether AppB is running.

If you want AppB to execute a function on the request of AppA, then you'd best modify AppB to a client/server structure.

I are Troll Suspicious | :suss:

Re: run a method on other application

dan!sh 28-Aug-10 3:37

dan!sh

28-Aug-10 3:37

I am not sure if I have understood you, do you want to call some method from an already running application? I mean call the method on the instance that is running. If yes, then you will need to look into inter-process communication. You can set up a NamedPipe and then use it to communicate.

If you need to call some method of another exe/dll, just add it as a reference if it is a .Net exe/dll or a COM component. If it is not a .Net exe/dll, you can make use of P/Invoke.

Re: run a method on other application

Abhinav S28-Aug-10 5:26

Abhinav S

28-Aug-10 5:26

You could try something like this[^].

The funniest thing about this particular signature is that by the time you realise it doesn't say anything it's too late to stop reading it.

My latest tip/trick

Visit the Hindi forum here.

Backing up database file using SMO error

gamer112727-Aug-10 16:52

gamer1127

27-Aug-10 16:52

Hi. I'm having problem with the way I Backup my database. I'm trying to use the SMO now because the first time I tried to backup my database with File.Copy() is I always have errors with the .dbo file that I'm backing up. I always have the error that the file is currently used by another process even if I already closed the connection. Now I'm still having problem with SMO. I encountered a run-time error saying: "the backup failed for the server ROJAI-PC". I don't know how to resolve the problem since I'm new to SMO. Can anyone help me?

Here is the code I used:

private void createBackupToolStripMenuItem_Click(object sender, EventArgs e)
       {
           Server srver = new Server();
           Backup bckup = new Backup();

           bckup.Devices.AddDevice(@"C:\Documents and Settings\Jairo Hibaler\Desktop\Backup\MP\HotelReservationSystem\HotelReservationSystem\bin\Debug\hotelReservationBackup.bak", DeviceType.File);
           bckup.Database = "HotelReservationDB";
           bckup.Action = BackupActionType.Database;
           bckup.Initialize = true;
           bckup.PercentCompleteNotification = 10;
           bckup.PercentComplete += new PercentCompleteEventHandler(bckup_PercentComplete);
           bckup.SqlBackup(srver);
       }

       private void bckup_PercentComplete(object sender, PercentCompleteEventArgs e)
       {
           MessageBox.Show(e.Percent.ToString() + "% backed up");
       }

building a win form application problem

mrkeivan27-Aug-10 11:37

mrkeivan

27-Aug-10 11:37

Hey guys, I have a win form application which was working just fine but now when I try to run it It freezes or gives me this error:

"Error 12 Problem generating manifest. The request could not be performed because of an I/O device error."

please help me out !!!

K

Re: building a win form application problem

Not Active27-Aug-10 12:01

Not Active

27-Aug-10 12:01

Ok, look here[^]

I know the language. I've read a book. - _Madmatt

Win7 No PingCompletedCallback on timeout?

Gavin Coates27-Aug-10 7:44

Gavin Coates

27-Aug-10 7:44

Hey guys,

I wrote a network scanning tool a few years ago, which pings a list of IP addresses. I recently moved to Windows 7, and have noticed some strange behaviour in the program. My ping code is as follows:

public void pingIP(int IP)
        {
            AutoResetEvent waiter = new AutoResetEvent (false);
            string IPaddress = IPpart1.Value.ToString() + "." + IPpart2.Value.ToString() + "." + IPpart3.Value.ToString() + "." + IP;
            IPAddress IPa = IPAddress.Parse(IPaddress);
            
            Debug.WriteLine("Pinging " + IP.ToString());
            
            Ping ping = new Ping();
            ping.PingCompleted += new PingCompletedEventHandler(PingCompletedCallback);

            ping.SendAsync(IPa, waiter);
            
        }

This then calls PingCompletedCallback when it recieves a response:

public  void PingCompletedCallback(object sender, PingCompletedEventArgs e)
        {
            

            PingReply reply = e.Reply;
                // get the IP that was pinged
                string IP = reply.Address.ToString();
                
                if(IP != "0.0.0.0")
                {
	                string[] IParray = IP.Split('.');
	                int iIP = Int32.Parse(IParray[3]);
	                if (reply.Status == IPStatus.Success)
	                    pingResult[iIP] = reply.RoundtripTime.ToString();
	                else
	                    pingResult[iIP] = "X";
	            
	                Debug.WriteLine("Ping Reply From " + IP.ToString() + " Time: " + pingResult[iIP]);
	
	                // check if the last ping (255) has been reveived and mark the ping complete flag if so
	                if (iIP == 255)
	                {
	                    pingComplete = true;
	                    lblStatus.Text = "Ping Complete";
	                }
                }
                
                
                
            ((AutoResetEvent)e.UserState).Set();
        }

Now, under Windows XP this worked fine, PingCompletedCallback was called for every ping I sent - either with a response, or with a timeout. I could then set the value as required. However, under Win7, PingCompletedCallback only seems to be called when a successful response is received. I have also noticed I recieve a lot of replies from "0.0.0.0", as well as multiple replies from the IP the machine is running on (10.0.0.4)

I have a second screen for doing a detailed ping on a single IP, which doesnt use a callback function, and it works fine when no response is received:

public void startPing(IPAddress IP)
        {
            
            
            textStatus.Text += "Pinging " + IP.ToString() + "...";
            this.Refresh();

            Ping ping = new Ping();

            PingReply reply = ping.Send(IP);
            if (reply.Status == IPStatus.Success)
                textStatus.Text += " Time: " + reply.RoundtripTime.ToString() + "\r\n";
            else
                textStatus.Text += reply.Status.ToString() + "\r\n";
        }

Has nayone seen anything like this before? Im a little confused!

Custom file type

Etienne_12327-Aug-10 5:29

Etienne_123

27-Aug-10 5:29

Hi
I have a friend who's a photographer and he's looking for a way to burn DVDs for his customers with the photos on. He wants to include both low resolution and high resolution photos on the disc, but he doesn't want his customers to be able to access the high res photos. They must bring the disc to him if they want any photos printed. What I suggested to him was to create an application that will allow him to save the photos in a different file format, and only he must be able to open these photos with this application.

I quickly fiddled with some code and saved an image in a different file format, but then of course one can still open these files by simply using the "Open With" dialog. I know there must be more to it than simply just saving it in a different file format. Maybe using some form of Serializer? Any help in the right direction would be appreciated.