C# Discussion Boards - CodeProject

J. Dunlap9-Apr-03 8:31

9-Apr-03 8:31

I came up against this problem, too, and no, you can't always put the code in a method of the object. I don't see any reason not to have a with block statement, except that C++ didn't have one, which is a very poor excuse!

"Do unto others as you would have them do unto you." - Jesus

"An eye for an eye only makes the whole world blind." - Mahatma Gandhi

Re: C# Equiv to WITH in VB.NET

Roger Alsing10-Apr-03 3:13

Roger Alsing

10-Apr-03 3:13

so what is the problem?
if you are going to set props on a something down a hirarchy like:

MyBlah.SomeBluh.LastWow.Gnu.BackColor=color.red;<br />
MyBlah.SomeBluh.LastWow.Gnu.ForeColor=color.green;<br />
MyBlah.SomeBluh.LastWow.Gnu.Text="hello you!"

it would be very simple to just make a temp holder for gnu:

GnuType g=MyBlah.SomeBluh.LastWow.Gnu;<br />
g.BackColor=color.red;<br />
g.ForeColor=color.green;<br />
g.Text="hello you!"

that would do the exact same thing . ok . you would have to type "g" infront of every prop , but thats about it...

//Roger

Re: C# Equiv to WITH in VB.NET

Member 26118811-Apr-03 1:14

Member 261188

11-Apr-03 1:14

I think that using a temporary holder (many times) floods the memory untill the garbage collector comes. And how would you release the resources used by g?

Re: C# Equiv to WITH in VB.NET

Roger Alsing11-Apr-03 1:51

Roger Alsing

11-Apr-03 1:51

take a good long reading about reference types...

that will sort things out for you..

//Roger

Sending/Simulating Mouse Clicks

CyberKewl9-Apr-03 4:41

CyberKewl

9-Apr-03 4:41

I'm developing a software which is similar to PCAnywhere and would like to know how to send / simulate a mouse click (with co-ordinates and stuff) that is not form dependant meaning that i can send / simulate the mouse click anywhere i want, be it the taskbar, tray icon, etc. How do i go about doing it? Are there any samples for this sort of thing?

Re: Sending/Simulating Mouse Clicks

J. Dunlap9-Apr-03 8:34

J. Dunlap

9-Apr-03 8:34

In Win98 or higher, there is a function called SendInput which you can use to send input as if it is coming from the keyboard, the mouse, or even another device. For any OS below that, you have to simulate it by using windows messages.

"Do unto others as you would have them do unto you." - Jesus

"An eye for an eye only makes the whole world blind." - Mahatma Gandhi

Re: Sending/Simulating Mouse Clicks

CyberKewl9-Apr-03 12:51

CyberKewl

9-Apr-03 12:51

After some searching yes that's the only way i guess but it seems to require me to define the structs, do you happen to know the full definitions and probably show me a sample syntax on how to call it?

Re: Counting characters from a text file

Le centriste9-Apr-03 4:37

Le centriste

9-Apr-03 4:37

Wrong forum. This is c#.

<-- Post of the week

Stephane Rodriguez.9-Apr-03 5:34

Stephane Rodriguez.

9-Apr-03 5:34

Nuf said.

Re: Counting characters from a text file

leppie9-Apr-03 7:04

leppie

9-Apr-03 7:04

Nope, not sharp enuf

I rated this article 2 by mistake. It deserves more. I wanted to get to the second page... - vjedlicka 3:33 25 Nov '02

find network computers

Andrei Matei9-Apr-03 1:40

Andrei Matei

9-Apr-03 1:40

Hi,
How can I find the names and/or IPs of the computers on my LAN (the ones that I see in Explorer)? Please help, I really don't have a clue...

Thanks a lot!

Andrei Matei
andreimatei@home.ro

Re: find network computers

Richard Deeming10-Apr-03 4:31

Richard Deeming

10-Apr-03 4:31

Have a look at http://www.codeproject.com/csharp/servercombobox.asp[^]

"These people looked deep within my soul and assigned me a number based on the order in which I joined." - Homer

Re: find network computers

Andrei Matei10-Apr-03 5:52

Andrei Matei

10-Apr-03 5:52

Thanks a lot, just what I needed.

Andrei Matei
andreimatei@home.ro

Using arraylist as a datasource

Venkatraman8-Apr-03 18:21

Venkatraman

8-Apr-03 18:21

Hi,

We can use an arraylist of objects as a datasource for a datagrid. We need to have public properties in that object to shown as columns. My question is if we are exposing another type as a public properties how can we show that.

It can be a master detail relation ship.

Cheers,
Venkatraman Kalyanam
Chennai - India

"Being Excellent is not a skill, it is an attitude"

keybd_event for .NET?

Alvaro Mendez8-Apr-03 9:36

Alvaro Mendez

8-Apr-03 9:36

What's the equivalent of the Win32 API keybd_event (or SendInput) for .NET?

Thanks,
Alvaro

When birds fly in the right formation, they need only exert half the effort. Even in nature, teamwork results in collective laziness. -- despair.com

Re: keybd_event for .NET?

J. Dunlap8-Apr-03 9:38

J. Dunlap

8-Apr-03 9:38

I don't know, but there is no rule that you can't use API's in .NET! Smile | :)

"Do unto others as you would have them do unto you." - Jesus

"An eye for an eye only makes the whole world blind." - Mahatma Gandhi

Re: keybd_event for .NET?

Alvaro Mendez8-Apr-03 11:08

Alvaro Mendez

8-Apr-03 11:08

I know, but why reinvent the wheel? You'd think that something like this would already be there, somewhere... Unsure | :~

Thanks,
Alvaro

When birds fly in the right formation, they need only exert half the effort. Even in nature, teamwork results in collective laziness. -- despair.com

Re: keybd_event for .NET?

Katalyst8-Apr-03 10:11

Katalyst

8-Apr-03 10:11

I had a similar question that I posted a couple of days ago, with mixed results. See thread:

http://www.codeproject.com/script/comments/forums.asp?msg=466571&forumid=1649#xx466571xx

I tried calling keybd_event from C# through an extern declaration, like this:

<br />
[DllImport("User32.dll")]  <br />
private unsafe static extern void keybd_event(byte bVk, <br />
                                              byte bScan, <br />
                                              uint dwflags, <br />
                                              ulong* dwExtraInfo);<br />

For me, this works the first time but is flaky after that. I'm not sure why, but it's possible that the last two parameter types are off -- I wasn't exactly sure what to use there.

Re: keybd_event for .NET?

Alvaro Mendez8-Apr-03 11:07

Alvaro Mendez

8-Apr-03 11:07

It's amazing that there isn't something equivalent to this in .NET already! I'm still hopeful that it's in there somewhere, but we just haven't located it.

Anyway, I did a search using Google and got to this link:

http://groups.google.com/groups?hl=en&lr=&ie=UTF-8&oe=UTF-8&q=keybd_event&btnG=Google+Search&meta=group%3Dmicrosoft.public.dotnet.languages.csharp[^]

The second link there shows one way to declare keybd_event inside the program:

http://groups.google.com/groups?q=keybd_event+group:microsoft.public.dotnet.languages.csharp&hl=en&lr=&ie=UTF-8&oe=UTF-8&selm=1DQ6HJ7VCHA.1780%40cpmsftngxa10&rnum=2[^]

I'll give that a shot, and I'll also dig a little more slowly into the .NET library to see if I can spot it. You'd have thought the Application class would have been the place, but nope.

Thanks for your help,
Alvaro

When birds fly in the right formation, they need only exert half the effort. Even in nature, teamwork results in collective laziness. -- despair.com

Found it!

Alvaro Mendez8-Apr-03 11:34

Alvaro Mendez

8-Apr-03 11:34

My digging payed off!! Smile | :)

I found a class called SendKeys class in the System.Windows.Forms namespace. Not the most intuitive name, but hey, it's a lot better than that awful keybd_event.

Regards,
Alvaro

When birds fly in the right formation, they need only exert half the effort. Even in nature, teamwork results in collective laziness. -- despair.com

Re: Found it!

Paresh Gheewala8-Apr-03 12:30

Paresh Gheewala

8-Apr-03 12:30

cool enjoy Laugh | :laugh:

Re: Found it!

Leon van Wyk10-Apr-03 2:05

Leon van Wyk

10-Apr-03 2:05

I had a quick look at the SendKeys class but can you use that to send it remotely, I think that was what you wanted to do. I am also looking for remote components to can control terminals across a tellephone line, I found some cool stuff, but not key strokes or mouse events... Let me know if you need any other stuff...

Leon v Wyk

Version Management Help... can i use TCL\tk and c#?

se99ts8-Apr-03 9:24

se99ts

8-Apr-03 9:24

Can i use TCL with c#? is there any integration between them like there is in C++?

The whole reason for this is i need to add some form of version managment to my final year software engineering project (and its getting rather late in the day) My plans were to use the Sharp develop CVS library but as there is no documentation for this i cant work out what is happening or what im supposed to do!

So i thought the next best thing might be to use TCL expect so i can easily send and recieve lines to and from the console but its been a while since ive used TCL and its a bit messy so i'd much rather do it all in c#!

Does anyone have any ideas on how i can impliment basic version management in any readily available system (CVS, RCS, etc.) im getting so fedup of trying to get this to work im even debating writing my own version management system but i know there must be one out there that will be fairly quick to get working?

Any help, ideas, or suggestions no matter how small will be greatfully accepted!

Thanks

Tim

Re: Version Management Help... can i use TCL\tk and c#?

Jerry Dennany8-Apr-03 13:06

Jerry Dennany

8-Apr-03 13:06

se99ts wrote:
Does anyone have any ideas on how i can impliment basic version management in any readily available system (CVS, RCS, etc.) im getting so fedup of trying to get this to work im even debating writing my own version management system but i know there must be one out there that will be fairly quick to get working?

Why not either use:

1. CVS (free, open source solution) and the command line client,

or

2. Perforce (http://www.perforce.com) with it's integrated tools or command line. It's free for up to 2 users, or totally free for open source solutions.

You'll never get anywhere 'rolling your own' solution.

Jerry Dennany

IDocHostUIHandler problem...ARRGGH..help needed!

LongRange.Shooter8-Apr-03 7:31

LongRange.Shooter

8-Apr-03 7:31

I have been weeding through everything I had to do to implement IDocHostUIHandler and now I am at the point where I've succeeded in blowing off the Framework.

I have the fat client form displaying the web control as an mdiChild within its' parent container.

In my first implementation I just put in the webBrowser control and set it to navigate to a website. That worked without a problem.

Now:
I have a form with the webcontrol in it and everything I need to do for implementing the IDocHostUIHandler interface. The form is loading and the web control succeeds in browsing to the site then executing the NavigateComplete method.

In this method I am setting my address so that it is accessible via the javascript code as follows:

<br />
		private void showWebPage_NavigateComplete2(object sender, AxSHDocVw.DWebBrowserEvents2_NavigateComplete2Event e)<br />
		{<br />
			AxSHDocVw.AxWebBrowser wb = (AxSHDocVw.AxWebBrowser)sender;<br />
			IHTMLDocument2 hDoc = (IHTMLDocument2)wb.Document;<br />
			((ICustomDoc)hDoc).SetUIHandler((IDocHostUIHandler)this);<br />
		}<br />

When this is done executing (immediatle after setting hDoc) I get

<br />
 An unhandled exception of type 'System.ExecutionEngineException' occurred in system.windows.forms.dll<br />
<br />
<br />
Fatal execution engine error.<br />
<br />

The exception points to the Main() method in my parent that begins the thread for the application.

Any suggestions to even BEGIN to look?

Thanks

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