File/Directory Exists? - C# Discussion Boards

Re: How to get highlighted text from a window e.g IE?

Heath Stewart15-Sep-04 10:37

15-Sep-04 10:37

There is no universal way. Internet Explorer and other Microsoft COM servers (like Word) use a TextRange object. From Internet Explorer - if you have a reference to the current IHTMLDocument2, you can create a TextRange by using IHTMLDocument2.selection to get an IHTMLSelectionObject, and if not null call IHTMLSelectionObject.createRange. The process is similar for Office products, but uses Office-specific objects to get a TextRange (a different class but works the same).

For text boxes and rich edit controls (encapsulates by the TextBox and RichTextBox controls, but are just Windows Common Controls classes "EDIT" and "RichEdit" (1.0), "RichEdit20A" (2.0; ANSI), or "RichEdit20W" (2.0; Unicode), you can P/Invoke SendMessage and pass EM_GETSEL (or EM_GETSELTEXT for Rich Edit controls - both work but work differently) to the control's HWND (exposed by the Control.Handle property inheritted by each control in Windows Forms).

If this is from another application to which you don't have a reference (or handle), P/Invoke FindWindow and/or FindWindowEx. This process has been discussed many times in this forum so click "Search comments" for more information.

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Re: How to get highlighted text from a window e.g IE?

fossmo16-Sep-04 11:17

fossmo

16-Sep-04 11:17

Thanks for the answer.
Can you give me a example on how to P/Invoke SendMessage and pass EM_GETSEL?

Re: How to get highlighted text from a window e.g IE?

Heath Stewart16-Sep-04 11:57

Heath Stewart

16-Sep-04 11:57

I would recomend you search for "SendMessage" by clicking "Search comments" directly above this forum. We've covered it more times than I can count here, and there are plenty of examples found in articles on this site.

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Microsoft

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Re: How to get highlighted text from a window e.g IE?

fossmo21-Sep-04 11:30

fossmo

21-Sep-04 11:30

I'm sorry but I don't understand how to use the EM_GETSEL or the EM_GETSELTEXT. Can you point me in the right direction?

Here is my code so far:

private string gst(IntPtr hwnd)
{
IntPtr retValue;
StringBuilder strb = new StringBuilder(4096);
retValue = SendMessage(hwnd, EM_GETSELTEXT, (IntPtr)0, out strb);
return strb.ToString();
}

SNMP Traps

sin6715-Sep-04 9:58

sin67

15-Sep-04 9:58

This may be an old topic but I'm having trouble finding any decent information on how to send SNMP traps using C#. Any help/links would be appreciated.

Re: SNMP Traps

Heath Stewart15-Sep-04 10:27

Heath Stewart

15-Sep-04 10:27

http://www.google.com/search?q=%22SNMP+traps%22+C%23[^]

Several of those results even point back to CodeProject. Click "Search comments" to search this forum (which isn't currently indexed by web crawlers).

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Software Design Engineer
Developer Division Sustained Engineering
Microsoft

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Re: SNMP Traps

sin6726-Oct-04 9:01

sin67

26-Oct-04 9:01

I know this is a long time after the original thread, but i'm still a little lost on the subject......basically what i'm trying to do is make a computer act as an agent and generate traps, that's all.

Is it possible to do this using the winsnmp functions .ie. SnmpCreatePdu,SnmpSendMsg, etc?

Thanks

File/Directory Exists?

tdciDoug15-Sep-04 9:56

tdciDoug

15-Sep-04 9:56

This is really an ASP question, but since I'm using C#, I'll post it here. I'm having trouble accessing remote files (or directories) out of my application. I simply want to check if a file exists on the other machine, which is shared on the same network. No dice, always comes up false. I have set up the IUSR_ComputerName and IWAM_ComputerName accounts on the remote computer to match my IIS account. Still returns only false. I've mapped a drive to the network location, and then put that mapped drive into a virtual directory. In the IIS Administrator I can see the files I'm trying to reach through this virtual directory...but the application only returns false.

Here's the code from my application:

		<br />
private void Page_Load(object sender, System.EventArgs e)<br />
{<br />
	if (System.IO.Directory.Exists("Drive"))<br />
		Response.Write(Server.MapPath("Drive") + " Exists<br>");<br />
	else<br />
		Response.Write(Server.MapPath("Drive") + " does not exist<br>");<br />
}

Thanks for the help on this. If anybody knows another method of accomplishing this same task, I'm all ears. All I can report is that we don't want to run IIS on the remote machine, and we don't particularly want to spawn an application to take care of the file maintenance...we'd like for the code to handle it. Smile | :)

Re: File/Directory Exists?

SandeepN15-Sep-04 10:24

SandeepN

15-Sep-04 10:24

What is Drive ? in if (System.IO.Directory.Exists("Drive"))

Please substitute "Drive" as "x:\\" should work..( where x is mapdrive letter)

or
if (System.IO.Directory.Exists("\\\\MachineName\\ShareName\\FolderName")) should do

Sandeep Naik

Re: File/Directory Exists?

tdciDoug15-Sep-04 10:36

tdciDoug

15-Sep-04 10:36

Drive is the name of my virtual directory, which maps to what you call x:

Re: File/Directory Exists?

mav.northwind15-Sep-04 23:09

mav.northwind

15-Sep-04 23:09

As Sandeep correctly mentioned, you're looking for the wrong directory.
You need to wrap "Drive" in a call to Server.MapPath() as well when calling System.IO.Directory.Exists(), otherwise you're actually searching for a Direcory named "Drive" instead of the mapped one.

Regards,
mav

Using a application already open to display files

smartyosu15-Sep-04 9:50

smartyosu

15-Sep-04 9:50

Hi,

I am a writing a program in which a user can open a file in some application by creating a new instance of that application. But what I want to do is see if that application is already open (the user opened it not through my program, but by double clicking the application icon) in which case use the already open application to display the file instead of creating a new instance.

How can I do it.

Thanks

Re: Using a application already open to display files

SandeepN15-Sep-04 10:47

SandeepN

15-Sep-04 10:47

One way to do this

if ( System.Diagnostics.Process.GetProcessesByName("processname").Length == 0 )
MessageBox.Show("Process not running");
else
MessageBox.Show("Process is running");

Sandeep Naik

Re: Using a application already open to display files

smartyosu15-Sep-04 12:01

smartyosu

15-Sep-04 12:01

Mr. Sandeep,

I guess you got the question wrong. Once I find that a application is already open, Is there a way that i can open a file in that, instead of creating a new instance of the application and then opening a file.

Thanks

Re: Using a application already open to display files

Heath Stewart15-Sep-04 14:22

Heath Stewart

15-Sep-04 14:22

There is, and a simple search for single instance application[^] would return several results, including Single Instance Application in VB.NET[^], which should be easy enough to translate (it's mostly calls to the BCL).

You can also communicate with the first instance through .NET Remoting - the preferred method - or native RPC, named pipes, DDE, or many other ways (but those are all native, which requires extra code in order to call necessary APIs).

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Software Design Engineer
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Microsoft

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What does an end user need to run a C# 2005 beta compiled app?

benjymous15-Sep-04 9:48

benjymous

15-Sep-04 9:48

I'm assuming it's the .NET Framework V2.0 beta - am I right?

--
Help me! I'm turning into a grapefruit!

Re: What does an end user need to run a C# 2005 beta compiled app?

Nnamdi Onyeyiri15-Sep-04 10:28

Nnamdi Onyeyiri

15-Sep-04 10:28

Yeah, i should think so.

website // Project : AmmoITX //profile
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Flash Movie on Forms

Salman Taseer`15-Sep-04 9:46

Salman Taseer`

15-Sep-04 9:46

Hello All

My question is this that how to embed a flash movies on a form? I'm using Macromedia Flash Obejet (A COM(+) control. I 'm the path of Movie in Movie property but it's not showing can any body helo me what to doo how to set properties plzzzzz. I'll be very thankful.

Cheers Bye Laugh | :laugh:

Rizwan Ahmed

Re: Flash Movie on Forms

Nnamdi Onyeyiri15-Sep-04 10:26

Nnamdi Onyeyiri

15-Sep-04 10:26

Have you tried using acimp utility in the frameworks BIN folder on the activeX component, it should produce .net assemblies for you to use with your app.

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Re: Flash Movie on Forms

eggie515-Sep-04 11:42

eggie5

15-Sep-04 11:42

There's samples on this website. I'm pretty sure. Do a search.

/\ |_ E X E GG

Re: Flash Movie on Forms

Heath Stewart15-Sep-04 11:50

Heath Stewart

15-Sep-04 11:50

If you've dragged the control from your toolbox (after customizing and adding it to your toolbox) to the form, or if you've used aximp.exe (not acimp.exe like the other poster said), then you reference both the AxInterop.*.dll and Interop.*.dll (or whatever you called them if you used aximp.exe and specified the /out switch). These are the ActiveX control (derived from System.Windows.Forms.AxHost) and the RCW (Runtime Callable Wrapper, a wrapper around the COM server generated from the typelib) respectively.

After you've done that, read the documentation for the ActiveX control on Macromedia's web site (or just take a stab and guess). The classes, interfaces, enumerations, methods, properties, etc. are all the same as they would be from a COM client like Visual Basic or some scripting language, because the RCW is marshaling calls to the COM (automation) objects themselves that scripting clients use.

There have also been articles on this site written about similar topics (perhaps even embeddeding the Flash player). I suggest using the search bar underneath the CodeProject logo at the top of the page to search for existing articles.

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Software Design Engineer
Developer Division Sustained Engineering
Microsoft

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Extract an ISO files to the local hard drive

ntuyen0115-Sep-04 9:17

ntuyen01

15-Sep-04 9:17

Hi All,

I need help. I want to extract the ISO file to the local harddrive. Is there an sample code or some sample written in VC++ 6.0 or C#, which I can take a look. Please help.

Thank You
Regards,
ntuyen01

Re: Extract an ISO files to the local hard drive

Joe Woodbury15-Sep-04 14:17

Joe Woodbury

15-Sep-04 14:17

Get IsoBuster: www.isobuster.com[^] (go to site and click on download on left.) The free (non-Pro) version does everything I've needed.

Anyone who thinks he has a better idea of what's good for people than people do is a swine.
- P.J. O'Rourke

how to build a web browser?

DuyNguyen15-Sep-04 9:17

DuyNguyen

15-Sep-04 9:17

can anyone give me instructions to build a basic web broser,what's necessery and needed to archive this? Smile | :)

...NLD...

Re: how to build a web browser?

Nnamdi Onyeyiri15-Sep-04 10:22

Nnamdi Onyeyiri

15-Sep-04 10:22

the web browser control.

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