Re: Non-standard UI - C# Discussion Boards

Re: How to kill a process running on network machine using c#

4-Dec-07 10:41

You can't. The account your code is running under must have admin rights to the target machine in order to kill the process. There is no way around this requirement.

A guide to posting questions on CodeProject[^]

Dave Kreskowiak
Microsoft MVP
Visual Developer - Visual Basic
2006, 2007

mevivekdua4-Dec-07 22:33

mevivekdua

4-Dec-07 22:33

yes I have the admin rights.
please guide me on this.
thanks in advance.

Re: How to kill a process running on network machine using c#

mevivekdua5-Dec-07 8:38

mevivekdua

5-Dec-07 8:38

Hi All,
I am able to kill the process on remote machine but sometime i get RPC Server not running/available exception.
Anybody knows how to overcome this problem ?
Thanks in advance

Non-standard UI

Google Ninja4-Dec-07 7:54

Google Ninja

4-Dec-07 7:54

Hey guys

I have a few cool ideas for a chord book app for musicians. The idea behind something like this is pretty basic, you are anchoring chords above text. The problem is that I come from a web background, and I have no clue where to even start with something like that.

What I would like to be able to do is drag an image from a pallet over some text. When it is over the text, I would like something like the text cursor to appear in between individual characters. Once the mouse is released, I would like to display that image anchored over that bit of text (so after dragging a chord, if the user goes to the start of the line and types more, the image will move with the text). I would also like to be able to do some typesetting for printing (to be able to put the chord names in a line above the text, but have it anchored again. simple with monospace, but I want to support not monospace fonts for printing)

I have no clue where to even start looking to make stuff like this. If anyone could point me in the right direction, it would be greatly appreciated.

Re: Non-standard UI

Anthony Mushrow4-Dec-07 8:49

Anthony Mushrow

4-Dec-07 8:49

To make things easier for yourself, stop thinking about the application as a whole. Pick one aspect, and break it down. For example:

Draging an image.
Click on image, move image, release image.
Events: mouseDown, mouseMove, mouseUp.

On mouseDown, get the picture that is below it.
On mouseMove, draw the picture at the location of the mouse.
On mouseUp, get text that is below image, attack image to text.

...

Then, you break that down:

On mouseDown, get picture.
  Add an onClick event to each picture, so that you know which picture has been clicked

...

And so it will go on.

My current favourite word is: Bauble!

-SK Genius

help for newbe

dxladner4-Dec-07 7:24

dxladner

4-Dec-07 7:24

Hello, I am new to programming. This will be my second C# programming class. I am very confused on using Visual Studio C# apps. In our class we write C# console apps. I need some help understanding how things are saved and how ro test your code. my example

I start a new project as a C# console app:
I write my code, before I save it I can test the code by going to debug and the code will run. If I have errors it will come up if not the output is shown. Now here comes the part. When I save it I save it as a file and not a project or a solution. It saves but then to totally close the code out I must close the solution. I chose to discard and exit. Now I am able to open up a new project or open up and existing file or project.

Now I need to change some code to my C# file I just wrote and saved. I open it and and it brings it up. Everything is there. I now make some changes. Now I want to test the code. HOW DO I DO THIS.Ths debug menu is not an option. it si not highlighted. What am I doing wrong?? I am saving the code wrong as a file. What do I need to do. I have been having to open the exiting file, copy the code, close that file, open a new project console app and then paste the code in the new window and there I have my debug option nice and highlighted and I am able to test my code that I had to make changes to. I know there is another way. HELP PLEASE. Thanks in advance,Darren

Re: help for newbe

Dave Kreskowiak4-Dec-07 7:45

4-Dec-07 7:45

dxladner wrote:
Now I need to change some code to my C# file I just wrote and saved. I open it and and it brings it up. Everything is there. I now make some changes. Now I want to test the code. HOW DO I DO THIS

You do it by NOT doing this:

dxladner wrote:
When I save it I save it as a file and not a project or a solution.

You MUST save the entire solution so the entire set of projects, plus all supporting files gets saved.

I have no idea why you would save just the *.cs file and not the entire solution.

A guide to posting questions on CodeProject[^]

Dave Kreskowiak
Microsoft MVP
Visual Developer - Visual Basic
2006, 2007

Re: help for newbe

dxladner4-Dec-07 7:55

dxladner

4-Dec-07 7:55

Thanks Dave for the quick reponse. This works great. One other question. Can you elaborate on the solution vs the project vs the differnt files?? or direct me to a link with some good clear explanations.Thanks, Darren

Re: help for newbe

ChrisKo4-Dec-07 8:03

ChrisKo

4-Dec-07 8:03

A solution contains many projects which contains many files. All programs are stored in a project and has many files. Sometimes your application might depend on other code that you want to debug at the same time, so you add both projects into a solution.

I hope that explains the relationship a little.

How to delete a pointer.

daavena4-Dec-07 7:24

4-Dec-07 7:24

Hi,

I have this:

int a = 5;
int *p = a;

Ho can I delete the pointer.

Thank you.

Dave Kreskowiak4-Dec-07 7:46

4-Dec-07 7:46

What do you mean? There's nothing here to "delete". It would appear that you're comming from a C++ background and trying to use pointers the exact same you did before. C# does support pointers, but not to the extent that C++ does.

A guide to posting questions on CodeProject[^]

Dave Kreskowiak
Microsoft MVP
Visual Developer - Visual Basic
2006, 2007

daavena4-Dec-07 8:24

4-Dec-07 8:24

Hi,

I use unsafe code - I am able to work with pointers(I think).

Dave Kreskowiak4-Dec-07 10:38

4-Dec-07 10:38

Yeah, with pointers, unsafe code is a given.

You haven't answered anyones questions about what you're trying to do with this.

There is no such thing as "deleting" with a pointer in C#.

A guide to posting questions on CodeProject[^]

Dave Kreskowiak
Microsoft MVP
Visual Developer - Visual Basic
2006, 2007

Anthony Mushrow4-Dec-07 7:47

Anthony Mushrow

4-Dec-07 7:47

I'm not sure that you need to, C# has that garbage collection thing. Where it clears memory that's not being used every now and then.

My current favourite word is: Bauble!

-SK Genius

daavena4-Dec-07 7:59

4-Dec-07 7:59

C# has the garbage collection I agree with you.

But I have to use usafe code. when I turn it on, wil garbage collection still work?

Colin Angus Mackay4-Dec-07 10:10

Colin Angus Mackay

4-Dec-07 10:10

daavena wrote:
But I have to use usafe code. when I turn it on, wil garbage collection still work?

Yes, it will still work. However, remember it is non-deterministic. If you are using pointers into the managed heap you need to make the pointer

<a href="http://msdn2.microsoft.com/en-us/library/f58wzh21(VS.80).aspx">fixed</a>[<a href="http://msdn2.microsoft.com/en-us/library/f58wzh21(VS.80).aspx" target="_blank" title="New Window">^</a>]

to ensure that garbage collection does not occur on the object you have a pointer to (remember the garbage collection process will also attempt to defragment the heap, so even if the object isn't being collected it may be moved around).

So, once you are finished with your object just ensure it is no longer fixed and allow the managed reference to the memory go out of scope and the garbage collector will get it. If you are encapsulating some piece of native code into a class you may want to look at the IDisposable interface as a way of cleaning up resources when an object of that class is no longer required. This is especially important if the native code did the memory allocation rather than you allocate memory then pass it to the native code.

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daavena4-Dec-07 8:01

4-Dec-07 8:01

C# has the garbage collection I agree with you.

I have to use usafe code, when I turn it on, wil garbage collection still work?