C# Discussion Boards - CodeProject

Re: Communicating between programs

12-Aug-02 12:36

The System.Windows.Forms.Message struct represents the underlying win32 message which all Windows programs use at some point in their operation. (Windows is considered a message based operating system because information is relayed from the OS to the programs by messages).

The System.Messaging namespace is used to "[provide] classes that allow you to connect to, monitor, and administer message queues on the network and send, receive, or peek messages." This requires a particular server to be used; but knowing nothing about it I'll leave it at that.

Next you have socket based communication; this could work well and given the simplicity of what you are trying to do (send basic strings) this is the option I would go for.

Microsoft's recommended solution for interprocess communication is to use remoting. Nish has written a pretty good article on the very basics of remoting, Absolute beginner's introduction to remoting. However, since you are just sending basic strings from one application to another I don't think the added overhead would be worth it.

You could also try using the PostMessage API function, to send a message to the other program (this relates to the first thing I talked about) but you'll have to get into Marshalling which you may not be ready for.

Good luck,

James
"And we are all men; apart from the females." - Colin Davies

imran_rafique13-Aug-02 10:58

imran_rafique

13-Aug-02 10:58

can u tell what are the equal code of vc++
sendmessage
postmessage
getmessage
peekmessage
in System.Messaging ?
plz help mee becuze i am doing mine final project and couldent get these things yet?

r00d0034@yahoo.com

Getting the Rectangle of a control

albean12-Aug-02 10:30

albean

12-Aug-02 10:30

I need to find out if a control intersects with a given Rectagle
(that is to say if given Rectagle overlaps in anyway with a given control).

But I need to find the rectagle of the control.

After the bounds of SelectionRect have been set I'm trying to do something like:

if ( SelectionRect.IntersectsWith(button4.???) ) {}

where SelectionRect is my Rectagle and button4 is the control.

I've looked at button4.Region.GetBounds() but that reqires a Graphics object. I'm wondering if there is a better way.

Thanks

Re: Getting the Rectangle of a control

James T. Johnson12-Aug-02 10:42

Re: Getting the Rectangle of a control

12-Aug-02 10:42

The Bounds property will give you that; no need going through the region Wink | ;)

James
"And we are all men; apart from the females." - Colin Davies

albean12-Aug-02 11:11

albean

12-Aug-02 11:11

Thanks James,
Thats just what i needed.

if(button4.Bounds.IntersectsWith(SelectionRect))

changing colors

Nnamdi Onyeyiri12-Aug-02 5:52

12-Aug-02 5:52

is it possible to cahnge the colour of text in a richtextbox with out actually selecting it with the SelectionLength and SelectionStart proprties?

Suspicious | :suss: Email: theeclypse@hotmail.com URL: http://www.onyeyiri.co.uk
"All programmers are playwrights and all computers are lousy actors."

James T. Johnson12-Aug-02 6:12

12-Aug-02 6:12

Not to my knowledge; unless you were to modify the underlying RTF data (you can get it via the Rtf property).

I assume you don't want to disturb what the user is doing when you change the color of the text; so the 'simple' solution is to: Save the SelectionStart and SelectionLength properties, do your modification to the color, then restore the SelectionStart and SelectionLength properties.

James
"And we are all men; apart from the females." - Colin Davies

Nnamdi Onyeyiri12-Aug-02 6:23

12-Aug-02 6:23

i have something similar to that at the moment, but that means that as the person is typing [fast that is] you see the highlight on some of the text. Frown | :(

Suspicious | :suss: Email: theeclypse@hotmail.com URL: http://www.onyeyiri.co.uk
"All programmers are playwrights and all computers are lousy actors."

James T. Johnson12-Aug-02 8:26

12-Aug-02 8:26

Yeah, thats the biggest problem with using that approach. I haven't looked (MSDN isn't installed on this computer) but perhaps there are some control messages that can be sent to the control that would set the color?

James

leppie12-Aug-02 8:26

leppie

12-Aug-02 8:26

Hey Nnamdi

B4 you break your head like i did, i'll send you derived RichTextBox (i call it the RicherTextBox Smile | :)

). I converted this from a VB.Net ( I know nothing of VB anymore, but it seems VB.Net is reverse C# Smile | :)

example on GotDotNet. Thanx [s orbit] for the great code.

New properties:

- SelectionBackcolor (from VB.Net example)
- FreezePainting (from VB.Net example)

New funtions:

- SelectionReverse (My own)

FreezePaiting will solve all your problems with the typing, just set to true b4 formatting and to false when done Smile | :)

I'll email u the class and should add it as a user upload soon , next 2 / 3 days.

Have fun Smile | :)

MYrc : A .NET IRC client with C# Plugin Capabilities. See
http://sourceforge.net/projects/myrc for more info. Big Grin | :-D

Nnamdi Onyeyiri12-Aug-02 8:37

Tool for testing and accessing web service (announcement)

12-Aug-02 8:37

thanks

Suspicious | :suss: Email: theeclypse@hotmail.com URL: http://www.onyeyiri.co.uk
"All programmers are playwrights and all computers are lousy actors."

Vyacheslav Pedak12-Aug-02 4:51

Vyacheslav Pedak

12-Aug-02 4:51

Hi,

I want to introduce software that can be useful for work with web service.

Web Service Invoker (WS Invoker) is a tool that can help you to access and debug any web service. It is not important how this web service was made (what programming language was used and what operation system is used to run it), because WS Invoker used pure WSDL definition for work.

If you are web service developer, you can find WS Invoker useful to debug and test web service you developed.

If you are web service consumer, you can use WS Invoker to request any web service. You do not need any other software to query any web service.

You can find all details here - http://www.soft-studio.net

Regards,
Vyacheslav Pedak

what line is the richtextbox on?

Nnamdi Onyeyiri12-Aug-02 3:52

Re: what line is the richtextbox on? - SORTED

12-Aug-02 3:52

is there a way to tell what line of the rich text box is at the top of the visible area?

Suspicious | :suss: Email: theeclypse@hotmail.com URL: http://www.onyeyiri.co.uk
"All programmers are playwrights and all computers are lousy actors."

Nnamdi Onyeyiri13-Aug-02 2:11

calling a method in a parent

13-Aug-02 2:11

if you derive your own class, then override the WndProc method, check if the message is a scrolling message, then check the WParam proprty, to check which dierection the scroll is in.

protected override void WndProc(ref Message m)
{
   if (m.Msg == 0x115)
   {
      if (m.WParam.ToInt32() == 1)
         //scrolled down
      else
         //scrolled up
   }
   base.WndProc(ref m);
}

for every line that is scrolled, theWndProc message is sent, so if you have a counter of some kind, you can track how may lines the user has scrolled, to work out the position. Big Grin | :-D

Suspicious | :suss: Email: theeclypse@hotmail.com URL: http://www.onyeyiri.co.uk
"All programmers are playwrights and all computers are lousy actors."

Nnamdi Onyeyiri12-Aug-02 1:44

Re: calling a method in a parent - SOLVED!

12-Aug-02 1:44

i have a control that needs to call a method in the parent form, any ideas how to do this?

i tried setting the form as the parents control using the Parents proprty, and the using this.Parent.Method() but it tries to call Method() from the Control class.

Suspicious | :suss: Email: theeclypse@hotmail.com URL: http://www.onyeyiri.co.uk
"All programmers are playwrights and all computers are lousy actors."

Nnamdi Onyeyiri12-Aug-02 1:49