Sample Code for SetWinEventHook in C# - C# Discussion Boards

Re: how to access a sub item of a ListView control??

15-Jan-07 23:08

So, the ListViewItem you get back doesn't have a SubItems collection ?

Christian Graus - C++ MVP

'Why don't we jump on a fad that hasn't already been widely discredited ?' - Dilbert

Saira Tanwir15-Jan-07 23:10

Saira Tanwir

15-Jan-07 23:10

it does have a SubItems collection.

Re: how to access a sub item of a ListView control??

Christian Graus15-Jan-07 23:16

Re: how to access a sub item of a ListView control??

15-Jan-07 23:16

Then I've told you all you need to know

Christian Graus - C++ MVP

'Why don't we jump on a fad that hasn't already been widely discredited ?' - Dilbert

Saira Tanwir15-Jan-07 23:17

Saira Tanwir

15-Jan-07 23:17

Thanks for all the help dude;P
i've figured out just another way to solve the problem.

Until Next time
Regards Rose | [Rose]

Re: how to access a sub item of a ListView control??

Saira Tanwir15-Jan-07 22:44

Saira Tanwir

15-Jan-07 22:44

can u also guide me about a way to set focus of the mouse on the column and all its cells, whose header is clicked.

Re: how to access a sub item of a ListView control??

Christian Graus15-Jan-07 22:49

Sample Code for SetWinEventHook in C#

15-Jan-07 22:49

Once you know what the column is, through the method I told you, if there's an API to select a column, you can call it.

Christian Graus - C++ MVP

'Why don't we jump on a fad that hasn't already been widely discredited ?' - Dilbert

Pattabhirama15-Jan-07 21:01

Pattabhirama

15-Jan-07 21:01

Hi,

I wanted to know if i could get a sample code in C# for SetWinEventHook.. This I want to use to track the events(Mouse and KeyBoard) in a .NET Application..

After that, Is there a way, that i can use this API(SetWinEventHook) like SetWindowsHookEx to inject code into the target Application's Address space and get the Control information on which the Mouse is Clicked?

Regards
Pattu

Christian Graus15-Jan-07 21:45

15-Jan-07 21:45

www.pinvoke.net[^] is the place to go if you want to call Win32 APIs in C#.

Christian Graus - C++ MVP

'Why don't we jump on a fad that hasn't already been widely discredited ?' - Dilbert

Pattabhirama15-Jan-07 22:06

Pattabhirama

15-Jan-07 22:06

Hi Graus,
I actually looked at www.pinvoke.net.. But I wanted a Sample code to use this API...

It would be great if i can get it..
Smile | :)

Regards
Pattabhi

Christian Graus15-Jan-07 22:08

15-Jan-07 22:08

Google for it. The point of pinvoke is that you're calling a Win32 API, so the Win32 docs is the place to look for help on how to call it

Christian Graus - C++ MVP

'Why don't we jump on a fad that hasn't already been widely discredited ?' - Dilbert

How to detect if a service is running or not

Art Taradeiko25-Sep-13 5:17

Art Taradeiko

25-Sep-13 5:17

SetWinEventHook(EVENT_SYSTEM_FOREGROUND, EVENT_SYSTEM_FOREGROUND, IntPtr.Zero, WinEventProc, 0, 0, WINEVENT_OUTOFCONTEXT);

private void WinEventProc(IntPtr hWinEventHook, uint eventType, IntPtr hwnd, int idObject, int idChild,
           uint dwEventThread, uint dwmsEventTime)

bouli15-Jan-07 20:57

bouli

15-Jan-07 20:57

Hello gurus,

As the subject says, I'd like to know how I can detect if a service is running in C#?
Is there an equivalent of the vb script IsServiceRunning function in C#???

Can someone provide me a code snipet please?

Best regards.

Fred.

There is no spoon.

Re: How to detect if a service is running or not

Kodanda Pani15-Jan-07 23:19

Kodanda Pani

15-Jan-07 23:19

Hi,

ServiceController.Status give the status of the service. I guess you can use this.

Thanks and Regards
Mahe

Re: How to detect if a service is running or not

justintimberlake16-Jan-07 1:00

justintimberlake

16-Jan-07 1:00

using system.serviceprocess
// u have to add a dll file

System.ServiceProcess.ServiceController svcCtrl = new ServiceController("your service name ");
string mystatus=svcCtrl.status.ToString();
Console.Writeline(mystatus);

Re: How to detect if a service is running or not

bouli16-Jan-07 2:11

bouli

16-Jan-07 2:11

Hi,

It works fine now Smile | :)

Thanks a lot!

Best regards.

There is no spoon.

Template Programming

satsumatable15-Jan-07 20:20

satsumatable

15-Jan-07 20:20

Hi
I would like to generate the text file with the help of Template Programming using C#. Please explain me how .Net 2003 supports and what are all the options in framework to create such kind of programming.

Please provide me a example also.

Thanks.

Re: Template Programming

Christian Graus15-Jan-07 21:43

Recursive directory search

15-Jan-07 21:43

Templates are called generics in C#. I can't see any reason why you'd need templates to create a text file. Generics do not exist in .NET 2003.

The System.IO namespace contains all the classes you need to interact with the file system. This[^] is a good resource on the subject.

Christian Graus - C++ MVP

'Why don't we jump on a fad that hasn't already been widely discredited ?' - Dilbert

electriac15-Jan-07 20:06

15-Jan-07 20:06

I have tested this significantly and it gets curious-er. I installed a drive that has nothing but MP3 files on it. I went in a command com and issued a “Dir *.mp3 /b /s > test.txt” to create a list of all the files on the drive. I read the file with a text editor and there are 17,247 files listed. Okay I run the program I have been testing and it finds only 16800 files. Here is the code I used to which I introduced a counter with which I report to a message box in order to confirm the exact number in the array. The number in the array agrees with countFiles.

void DirSearch(string sDir)
        {
            try
            {
                foreach (string d in Directory.GetDirectories(sDir))
                {
                    foreach (string f in Directory.GetFiles(d, "*.mp3"))
                    {
                        //listBox1.Items.Add(f);
                        arrText.Add(f);
                        countFiles++;
                    }
                    DirSearch(d);
                }
            }
            catch (System.Exception excpt)
            {
                Console.WriteLine(excpt.Message);
            }
        }

Upon examintion of the array in the list box there is also 16,800 files in the list box but I notice that I have a directory for “World” music which is not present in the list. Out of curiosity I change the name of the directory from “World” to “aWorld” and run the program without any other changes. The program reports 17,005 files which reflects the approximate number of files in the “World” directory.

It seems that there is something strange happening in DirSearch that is beyond my feeble mind. Since it will not read anything alphabeticaly beyond “Rock and Roll” could there be some kind of musical prejudice at work? That’s a joke.

Luc Pattyn15-Jan-07 21:04

Luc Pattyn

15-Jan-07 21:04

>dir also lists the directory names themselves, whereas your code does not count them.

Smile | :)

Luc Pattyn

electriac15-Jan-07 21:19

15-Jan-07 21:19

This would not account for the difference of 200 files when "world" is renamed to "sworld". I do understand what you are saying and will set up a more precise test when I get rid of the major bugs. There is only 15 directories on the root of my test drive with no more that 15 or so sub directories.

Tnx for the suggestion

electriac15-Jan-07 21:52

15-Jan-07 21:52

if I just do a "DIR *.* /s" this should yield a correct count of the files on a drive shouldn't it?

Luc Pattyn15-Jan-07 22:22

Luc Pattyn

15-Jan-07 22:22

dir /s promises to list files
and GetFiles() returns a list of files

In .NET file seems to mean leaf node in the file system's hierarchy;
in DOS I dont know, maybe they still realized a directory was actually also a logical unit
of information, aka file.

My observations indicate a difference between both worlds, I guess that is what
progress is all about ?

Smile | :)

Luc Pattyn

Christian Graus15-Jan-07 21:48

15-Jan-07 21:48

No files are in the root directory ?

Christian Graus - C++ MVP

'Why don't we jump on a fad that hasn't already been widely discredited ?' - Dilbert

electriac15-Jan-07 21:54