Re: changing colors - C# Discussion Boards

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

James T. Johnson

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

James T. Johnson

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

Re: calling a method in a parent - SOLVED!

12-Aug-02 1:49

I gave the parent form an interface

class MyForm : Form, ITest

then called that interfaces method, and it worked.

((ITest)thi.Parent).Method();

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

leppie12-Aug-02 8:38

leppie

12-Aug-02 8:38

or...

class MyForm : Form

((MyForm) this.Parent).Method();

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

DotNetBar shortcuts?

Martin D12-Aug-02 1:30

Martin D

12-Aug-02 1:30

Hi all - i'm currently using DotNetBar v1.0.0.15 and have found that if you add a shortcut to a main menu item (ie Ctrl+O when opening files)
the character 'O' gets added to the currently focused control after the shortcut code is run. This results in my currently focused richtextbox getting an additional character each time i try to open a new document.

I've tried trapping the key events but my shortcut code (an open dialog box)gets processed first before the key event handlers, by which point the Ctrl keys are long since deselected and event handler doesn't fire as expected.
Does anyone know of a reason or fix for this strange behaviour between DotNetBar and currently focused text.
boxes?

Cheers

unload DLL

wb12-Aug-02 0:58

12-Aug-02 0:58

my problem:
I have to port a Project from C++ to C#
there is a DLL, i can load

[DllImport("blabla.dll")]	<br />
public extern static void CancelSearch();<br />
.<br />
.<br />
.<br />

and use it...

and then end the programm BUT there is a deadlock,
cause the FreeLibrary(); is never called
by C# Frown | :(

(if I remove the FreeLibrary(); in C++ then the C++ App hangs too)

any idea how to unload the DLL?

Nick Parker12-Aug-02 1:20

Nick Parker

12-Aug-02 1:20

At the command line prompt change to the directory the .dll is registered in and then type the following:

regsvr32 -u blabla.dll

You should get a prompt saying it has been unregistered.

HTH

Nick Parker

wb12-Aug-02 1:31

12-Aug-02 1:31

no, the DLL is not registered.. its just a normal DLL ...
it waits till I call the FreeLibrary(); function
.... but I have no idea how to do this in C#

Nick Parker12-Aug-02 11:47

Nick Parker

12-Aug-02 11:47

So are you only trying to call the FreeLibrary(); function from this .dll? If so and it is non .NET then you will need to use COM Interop.

HTH

Nick Parker

Christopher Lord13-Aug-02 7:41

Christopher Lord

13-Aug-02 7:41

Normal DLL's dont use COM, and thus COM-interop will not be useful here.

Nick Parker13-Aug-02 7:52

Nick Parker

13-Aug-02 7:52

Christopher Lord wrote:
Normal DLL's dont use COM, and thus COM-interop will not be useful here.

Isn't it Cry | :((

. I must have been spacing off when I was typing my response, please forgive.

Nick Parker

Philip Fitzsimons12-Aug-02 2:38

Philip Fitzsimons

12-Aug-02 2:38

trying use app domains - put the dll calling code in a sep domain - then when you unload the domain the dll should get unload as well...

"When the only tool you have is a hammer, a sore thumb you will have."

wb13-Aug-02 4:30

13-Aug-02 4:30

thanks! I think this may work.... but I can't find any sample code with AppDomains
do you know a link? Blush | :O