Re: Question: Key hooking - C# Discussion Boards

Re: Question: Key hooking

15-Aug-07 12:12

there are CodeProject articles on subjects like these, if you care to search...

Smile | :)

Luc Pattyn [Forum Guidelines] [My Articles]

this weeks tips:
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- before you ask a question here, search CodeProject, then Google

Michael Sync15-Aug-07 14:14

Michael Sync

15-Aug-07 14:14

udikantz wrote:
is it possible to make a key hooking method , that hook up which keys the
user is pressing while your program is running in the background?
i know its possible in c/c++....but no clue in c#

Which Hook are you talking about?

There are a lot of different hook types. (Ref: Window Hooks[^])

* WH_CALLWNDPROC and WH_CALLWNDPROCRET Hooks
* WH_CBT Hook
* WH_DEBUG Hook
* WH_FOREGROUNDIDLE Hook
* WH_GETMESSAGE Hook
* WH_JOURNALPLAYBACK Hook
* WH_JOURNALRECORD Hook
* WH_KEYBOARD_LL Hook
* WH_KEYBOARD Hook
* WH_MOUSE_LL Hook
* WH_MOUSE Hook
* WH_MSGFILTER and WH_SYSMSGFILTER Hooks
* WH_SHELL Hook

When I was working for test automation tool project, I used JournalRecord Hook and JournalPlayBack to record the users input as macro. You don't need to use C/C++ for that. All you need to do is that you need to find out how to use a few API in a particular language that you wanna use. I did one project in C# and another project in VB6.

Check-out this article for more details.
http://msdn.microsoft.com/msdnmag/issues/02/10/CuttingEdge/[^]

If you have some problems in using JournalRecord and JournalPlayback hooks, let me know.

Thanks and Regards,
Michael Sync ( Blog: http://michaelsync.net)

If you want to thank me for my help, please vote my message by clicking one of numbers beside "Rate this message". Why vote? Plz Read it here. Thank you.

executing a .exe file on remote computer

waqas_2k15-Aug-07 11:32

waqas_2k

15-Aug-07 11:32

i am working on a project in which i hav to copy a .exe file to all the pcs' on the domain and the execute it with in a single loop, i used File.copy to copy and invoke psexec to exe cute the file, the problem is that psexec give file error bcoz the file is in use by copy command, when i restart the application the psexec execute the file that was copied when i first run the application

Re: executing a .exe file on remote computer

Harkamal Singh16-Aug-07 1:59

Harkamal Singh

16-Aug-07 1:59

lets have a look at the code as well !

you can have a look at the article for reference

http://support.microsoft.com/default.aspx?scid=kb;en-us;827227[^]

Get Win32 file version?

flipdoubt15-Aug-07 10:38

flipdoubt

15-Aug-07 10:38

Is there an interop or P/Invoke (or are those the same?) call to ascertain the Win32 file version of a file? I want to list the version of all files in a directory, but some may not be .NET assemblies. How can I read this info?

Thanks.

Luc Pattyn15-Aug-07 10:58

15-Aug-07 10:58

Hi,

have a look at FileVersionInfo.GetVersionInfo(), it works for all kinds of files.

Smile | :)

Luc Pattyn [Forum Guidelines] [My Articles]

Pete O'Hanlon15-Aug-07 10:58

Pete O'Hanlon

15-Aug-07 10:58

Use FileVersionInfo.FileVersion. Try:

FileVersionInfo fv = FileVersionInfo.GetVersionInfo("Filename");
Console.WriteLine(fv.FileVersion);

Deja View - the feeling that you've seen this post before.

Scott Dorman15-Aug-07 13:46

Scott Dorman

15-Aug-07 13:46

As has already been said, using FileVersionInfo.GetVersionInfo() is the right way to go. If you are only looking for the version number data, there aren't any problems. However, if you want to start looking at any of the other properties, a lot of the .NET assemblies will report incorrect data, particularly the IsDebug property.

-----------------------------
In just two days, tomorrow will be yesterday.

http://geekswithblogs.net/sdorman

help with a loop to compare datatables

flipdoubt15-Aug-07 12:38

flipdoubt

15-Aug-07 12:38

Thanks, guys! That is quick service.

kboyette15-Aug-07 9:57

15-Aug-07 9:57

I have two listBoxes on a Winforms project that populate indirectly from two different datatables. One is a complete list of available families in a families table and the other is a list of the families that are assigned to a particular contact from a join table. This worked fine. Now I want to change the list of available families to exclude those in the "assigned list" so that the available families list only shows those families that are not currently assigned to the current contact. My code for this works fine if there is only one assigned family but if there are more then I get duplicates in the available families list. I've thought of a couple of ways to accomplish this but none of them are elegant. See code below...

private void loadFamiliesList(string contactID)
{

int cID = Convert.ToInt32(contactID);
this.view_form_manageContactsTableAdapter.FillByContact(this.ds_formContactsFamilies4Contact.view_form_manageContacts, cID);
listBox_availableFamilies.Items.Clear();

foreach (DataRow datarow in ds_form_contacts.tbl_families.Rows)
{

string fam1 = datarow["familyName"].ToString();
string famID = datarow["familyID"].ToString();
string cID2 = contactID;
int i = ds_formContactsFamilies4Contact.view_form_manageContacts.Rows.Count;
// MessageBox.Show("ContactID is " + i);
if (i < 1)
{
listBox_availableFamilies.Items.Add(new ItemObject(fam1, famID, cID2));
}
else
{

foreach (DataRow datarow3 in ds_formContactsFamilies4Contact.view_form_manageContacts.Rows)
{
string fam3 = datarow3["familyName"].ToString();
string famID3 = datarow3["familyID"].ToString();
string cID3 = contactID;
if (famID != famID3)
{
// listBox_availableFamilies.Items.Add(fam1);

listBox_availableFamilies.Items.Add(new ItemObject(fam1, famID, cID2));
}
}
}
}

}

-Kevin

Luc Pattyn15-Aug-07 10:21

15-Aug-07 10:21

Hi Kevin,

I am not familiar with databases and databinding in general.

It seems like you want to remove those items from listBox_availableFamilies
that already are present in listbox2. Couldn't you achieve that by starting
with listBox_availableFamilies as is, then have a foreach loop over the
listbox2 items, and simply find (with FindStringExact) and remove them from
listBox_availableFamilies ?

Smile | :)

Luc Pattyn [Forum Guidelines] [My Articles]

kboyette15-Aug-07 10:57

15-Aug-07 10:57

I thought about this too, but it seemed a bit awkward to populate the whole list then remove items. I may end up doing this if I can't figure something else out. Thanks for your help.

-Kevin

Luc Pattyn15-Aug-07 11:48

15-Aug-07 11:48

Oh, I understood you already had that; if not, and populating listbox1 by your
own code (as opposed to databinding), just do the listbox2 first, then populate
listbox1 as uou did before but add a test for presence in listbox2
(a few lines will be required to do that).

Smile | :)

Luc Pattyn [Forum Guidelines] [My Articles]

kboyette16-Aug-07 4:38

16-Aug-07 4:38

Is there a specific command to do this test for presence?

-Kevin

Luc Pattyn16-Aug-07 4:55

16-Aug-07 4:55

No, and that's why I described it as "a few lines"
you probably want a foreach loop.

Smile | :)

Luc Pattyn [Forum Guidelines] [My Articles]

kboyette16-Aug-07 10:46

16-Aug-07 10:46

That's what I ended up doing. thanks, -Kevin

pmarfleet15-Aug-07 10:26

pmarfleet

15-Aug-07 10:26

Kevin

You should add a break statement to your inner foreach loop after adding the item to the list. This will ensure that the current family from the outer loop is not added multiple times to the available list if it is not already assigned to the contact.

Paul

kboyette15-Aug-07 10:55