Re: Communication between 2 processes by DLL - C# Discussion Boards

Re: C# Datagridview

Ronni Marker7-Dec-09 10:52

Ronni Marker

7-Dec-09 10:52

Man.... Your right.

Thanks, had been staring myself blind at what I already knew.

Cheers,
Ronni

Re: C# Datagridview

ricmil427-Dec-09 10:49

ricmil42

7-Dec-09 10:49

It looks like each time you show the editor you are running this line:

cbo.SelectionChangeCommitted += new EventHandler(cbo_SelectionChangeCommitted);

Since += is used the events are additive.

I assume the grid has an event for the editor closing? Sorry I use DevX controls and don't really know the MS grid.

Find the editor close event and run this line:

cbo.SelectionChangeCommitted -= new EventHandler(cbo_SelectionChangeCommitted);

This will remove the event that is showing the message box.

Opening the editor attaches the message box event, closing the editor releases it.

Communication between 2 processes by DLL

bonzaiholding7-Dec-09 9:30

bonzaiholding

7-Dec-09 9:30

1 . What is the best way to set communication between 2 processes on the same computer? (The simplest way because every process will be writen by another company and team).
2. Is there a way that 2 processes will be in Contact through DLL (class with static values, Static function and so on) ?

Thanks ,
Shai.

Re: Communication between 2 processes by DLL

Wes Aday7-Dec-09 9:49

Wes Aday

7-Dec-09 9:49

bonzaiholding wrote:
communication between 2

We use named pipes for our application which has worked out pretty well for us.

bonzaiholding wrote:
Is there a way that 2 processes will be in Contact through DLL

I guess I don't understand what you are asking here. But is sounds like you are asking that the two process have to have a common reference to the same data structures. So yes you would have to have both projects use the same data structures.

Why is common sense not common?
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Re: Communication between 2 processes by DLL

PIEBALDconsult7-Dec-09 17:13

PIEBALDconsult

7-Dec-09 17:13

Wes Aday wrote:
named pipes

That sounds right.

Wes Aday wrote:
have both projects use the same data structures.

That's not real easy; each app has its own app domain.

Re: Communication between 2 processes by DLL

Luc Pattyn7-Dec-09 10:03

Luc Pattyn

7-Dec-09 10:03

what is the best car?

do you need signaling? are you looking for something message oriented? or just shared data?
do you need locks? etc etc.

You need to provide more information as to the kind of data and communication you're intending.

Smile | :)

Luc Pattyn [Forum Guidelines] [Why QA sucks] [My Articles]

I only read code that is properly indented, and rendered in a non-proportional font; hint: use PRE tags in forum messages

Re: Communication between 2 processes by DLL

bonzaiholding7-Dec-09 10:38

bonzaiholding

7-Dec-09 10:38

I don't need a lock, i need data,structure and most important is signaling.

Re: Communication between 2 processes by DLL

Luc Pattyn7-Dec-09 10:49

Luc Pattyn

7-Dec-09 10:49

that does not tell me anything about the app and the data, so the best I can say is:
- sharing data can be done with a memory mapped file, this probably needs P/Invoke and Win32 API;
- signaling can be done in many ways, e.g. with Windows messages (override WndProc)

alternatives are:
- sending messages (data+signal), e.g. with named pipes
- RPC
- remoting
- ...

Smile | :)

Luc Pattyn [Forum Guidelines] [Why QA sucks] [My Articles]

I only read code that is properly indented, and rendered in a non-proportional font; hint: use PRE tags in forum messages

Re: Communication between 2 processes by DLL [modified]

Abhinav S7-Dec-09 17:12

Abhinav S

7-Dec-09 17:12

One way to setup interprocess queue using a reliable queueing mechanism would be to use MSMQ.

Here is a good sample - http://articles.techrepublic.com.com/5100-10878_11-6170794.html[^].

I have never used MSMQ for interprocess communication myself, so I cannot help you further with this.

modified on Tuesday, December 8, 2009 12:00 AM

Using dlls that are not referenced.

Tim Groven7-Dec-09 7:11

Tim Groven

7-Dec-09 7:11

I'm not even sure if this is possible, or what to even google for, so I'm looking for suggestions.

What I want to have is a directory full of .net dlls, that all do different things, but have the same public function as an entry point.

I don't want to have to reference each dll, so is there a way to hook up to the dll and use the public function that I know will be the same for each dll file?

Thanks,

Tim

Re: Using dlls that are not referenced.

Md. Marufuzzaman7-Dec-09 7:34

Md. Marufuzzaman

7-Dec-09 7:34

Try like the following,

<pre>      private const string Kernel32Dll = "kernel32.dll";

      private sealed class SafeLibraryHandle : SafeHandleZeroOrMinusOneIsInvalid
      {
         public SafeLibraryHandle() : base(true) { }

         [SuppressUnmanagedCodeSecurity]
         [DllImport(Kernel32Dll)]
         [return: MarshalAs(UnmanagedType.Bool)]
         private static extern bool FreeLibrary(IntPtr hModule);

         /// <summary>Release library handle</summary>
         /// <returns>true if the handle was released</returns>
         [ReliabilityContract(Consistency.WillNotCorruptState, Cer.Success)]
         protected override bool ReleaseHandle()
         {
            return FreeLibrary(handle);
         }
      }
</pre>

Thanks
Md. Marufuzzaman

Don't forget to click [Vote] / [Good Answer] on the post(s) that helped you.

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Re: Using dlls that are not referenced. [modified]

PIEBALDconsult7-Dec-09 7:37

PIEBALDconsult

7-Dec-09 7:37

That would be plug-ins or add-ins -- dynamically loaded assemblies. There are several articles on here that deal with that.

Here's one that seems pretty good, but there are others.[^]

modified on Monday, December 7, 2009 1:43 PM

Re: Using dlls that are not referenced.

Md. Marufuzzaman7-Dec-09 8:00

Md. Marufuzzaman

7-Dec-09 8:00

I agree with you.

Thanks
Md. Marufuzzaman

Re: Using dlls that are not referenced.

Tim Groven7-Dec-09 8:45

Tim Groven

7-Dec-09 8:45

Thank you! Plug-in was the term I was looking for.

Also, thank you for the link, I'm off to some happy coding.

Message Removed

7-Dec-09 6:22

N_tro_P

7-Dec-09 6:22

Message Removed

Re: Is Save Blocking nor non-blocking

Luc Pattyn7-Dec-09 7:12

Luc Pattyn

7-Dec-09 7:12

Hi,

since:
- you can get synchronous exceptions, e.g. when the disk is full, the file locked, whatever;
- you can modify or Dispose the image right after the Save statement, without affecting the file content.
- the documentation tends to explicitly say so whenever something is asynchronous, and say nothing for everything synchronous.

Image.Save() to me looks like a blocking call.

If there is anything that makes you doubt that, why don't you provide your observations?

Smile | :)

Luc Pattyn [Forum Guidelines] [Why QA sucks] [My Articles]

I only read code that is properly indented, and rendered in a non-proportional font; hint: use PRE tags in forum messages

Re: Is Save Blocking nor non-blocking

Shameel7-Dec-09 7:15

Shameel

7-Dec-09 7:15

AFAIK, both Save methods are synchronous ('blocking' in your jargon).

XML

Morgs Morgan7-Dec-09 5:00

Morgs Morgan

7-Dec-09 5:00

Hi everyone
I have an XML file which I can read from using XmlDocument, XPath and XmlTextReader and all is well this far.
But is there a way that I can write data to an XML file, lets say entered from textboxes using the XmlDocument class? Confused | :confused:

Please I will appreciate any kind of help.. D'Oh! | :doh:

Re: XML

J4amieC7-Dec-09 5:17

J4amieC

7-Dec-09 5:17

XmlDocument, or (surprise, surprise) XmlTextWriter

Re: XML

PIEBALDconsult7-Dec-09 6:23

PIEBALDconsult

7-Dec-09 6:23

XmlDocument has a Write method, doesn't it?

Re: XML

wenjinxu7-Dec-09 23:05

wenjinxu

7-Dec-09 23:05

XmlDocument xmlDoc;
.......
change xmldoc
.......
xmlDoc.Save(filePath);

2D array to Image

umesh adiga7-Dec-09 4:55

umesh adiga

7-Dec-09 4:55

Hi
I am trying to convert a 2D rectangular array (type [,]) to Image.... I saw examples for 1D array to Image and 2D array of type[][] to Image. I am new to C#. Please some one direct me to a site or code snapshot that shows me how to do it.

Thanks a lot

umesh

Re: 2D array to Image

Md. Marufuzzaman7-Dec-09 9:09

Md. Marufuzzaman

7-Dec-09 9:09

Try like the following:
<pre>

e.Graphics.DrawImage(New Bitmap(tile(TilePos.X, TilePos.Y)), TilePos.X * 30, TilePos.Y * 30)
</pre>

Thanks
Md. Marufuzzaman

Visual Studio Addin

LimitedAtonement7-Dec-09 3:53

LimitedAtonement

7-Dec-09 3:53

Dear Sirs,

Who is the pro at creating Visual Studio addins? I don't want to use one of those canning programs, but rather I would like to write one from scratch. There seems to be a lack of examples and the documentation is `so-so.' Specifically I'm trying to change the background color in a code window, but only a certain portion of the code window. Let me know if you know anything about this, or provide a link to some good documentation or a tutorial. Thanks!

In Christ,
Aaron Laws

http://ProCure.com

Need help in opening cash drawer

yousaf287-Dec-09 3:45

yousaf28

7-Dec-09 3:45

I have developed a POS system. I am having problem opening the cash drawer that is attached with receipt printer. I have searched alot but i am not been able to find the right code that can work for me. I am using CBM 1000 receipt printer. Is there any one who has done such app, please help/assist me.

Thanks

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