C# Discussion Boards - CodeProject

Stephane Rodriguez.26-Dec-02 20:35

26-Dec-02 20:35

Calamitous wrote:
Argument '1': cannot convert from 'ref short' to 'ref object'
u know what I can do here?

API automatically generated by the type lib discoverer comes short in many places, including that one. In fact, you need to know to hack the C++ IDL interface counterpart before you get the C# stuff working.

For your issue, the simplest thing I can see is as follows :

short i = 2; // example
object oi = i;

frame f = X.frames.item(ref oi);

Start ILDASM via code?

Roger Alsing26-Dec-02 4:07

Roger Alsing

26-Dec-02 4:07

hi i use ildasm.exe in my tool , how should i do to start it via the .net environment variables?
currently my code looks like

<br />
Process p=new Process ();<br />
p.StartInfo.FileName =@"C:\WINNT\Microsoft.NET\Framework\v1.0.3705\ilasm.exe";<br />

i need to be able to start it via the environment vars and not use a hardcoded path.
so how do i access the environment vars and how would the aboce code look with the environment vars in it?

//Roger

Re: Start ILDASM via code?

Daniel Turini26-Dec-02 4:21

Daniel Turini

26-Dec-02 4:21

Call this function[^] via DllImport.

[edit]And I never tried it, but you can try the RuntimeEnvironment.GetRuntimeDirectory method[/edit]

I see dumb people

Re: Start ILDASM via code?

Roger Alsing26-Dec-02 5:23

Roger Alsing

26-Dec-02 5:23

oke this solved it halfway..
i need the path for ilasm.exe to... and for some reason ilasm and ildasm are located in differet folders.

"C:\Program\Microsoft Visual Studio .NET\FrameworkSDK\Bin\ildasm.exe"
and C:\WINNT\Microsoft.NET\Framework\v1.0.3705\ilasm.exe

why?

RuntimeEnvironment.GetRuntimeDirectory () returns the path where ilasm is located , but how can i get the other path to? and are they always located at different locations?

//Roger

Re: Start ILDASM via code?

Daniel Turini26-Dec-02 5:27

Daniel Turini

26-Dec-02 5:27

Because ILDASM is a programmer tool, it is located on the Framework SDK path, not in the Framework path.
I'm not sure if this is the right way, but you can obtain it at HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\.NETFramework\sdkInstallRoot

I see dumb people

Re: Start ILDASM via code?

David Stone26-Dec-02 11:00

David Stone

26-Dec-02 11:00

Daniel Turini wrote:
sdkInstallRoot

Looks like that would only be part of the SDK. So that wouldn't work if you were installing to a box with only the runtime.

I don't know whether it's just the light but I swear the database server gives me dirty looks everytime I wander past.
-Chris Maunder

Microsoft has reinvented the wheel, this time they made it round.
-Peterchen on VS.NET

Re: Start ILDASM via code?

Anonymous27-Dec-02 1:09

Anonymous

27-Dec-02 1:09

can i execute "vsvars.bat" first?

vsvars.bat is tha batch file that registers the .net environment variables .
so could i somehow execute that batch in the context of my program so my program can retrive the paths from the environment variables then?

i actually peeked inside a quite wellknown obfuscator (and they use ilasm and ildasm)
and they retrive the path to both of them via the environmentvariable "path" , but that variable dont contain the .net paths unless vsvars.bat have been executed.
(they also display a mysterious dos window before their app starts , and i beleve they actually executes vsvars.bat in there somehow)..

so any ideas how i could start that bat file so that the vars are visible to my app?

//Roger

Re: Start ILDASM via code?

David Stone27-Dec-02 10:34

David Stone

27-Dec-02 10:34

Well, there are a couple problems with that. That batch file is only included with the .NET Framework SDK. End-users will only have the .NET Framework Runtime. So they won't have ILDASM or VSVars32.bat.

And, you can run VSVars32.bat, but why not just hardcode the path? I don't think it's gonna change until you upgrade to another .NET Framework version.

DataGrid row color

Anonymous26-Dec-02 2:20

Anonymous

26-Dec-02 2:20

Hi.
How can I colour some rows of a DataGrid?
I have to colour some row where one boolean or more value of the database is
true or false.
Demetrio

Wink | ;)

internet connection is up

karanba26-Dec-02 2:13

karanba

26-Dec-02 2:13

I detect the internet connection with the following method
//*************************************
try
{
server = DNS.GetHostByName("www.yahoo.com");
}
catch(Exception)
{
Console.WriteLine("Internet Connection not found"); // fail
return ;
}
//***********************************************
But it takes times to find if internet connection is up. I need a faster method.
Is there any?

karanba

Re: internet connection is up

J. Schermerhorn26-Dec-02 10:55

J. Schermerhorn

26-Dec-02 10:55

Try using the Win32 InternetGetConnectedState() function.

-John

Re: internet connection is up

karanba27-Dec-02 0:46

karanba

27-Dec-02 0:46

Can you give me a short code example how to use this function in C#. Is there any resource to add with the project...
thanks.

karanba

Re: internet connection is up

grv57527-Dec-02 2:31

grv575

27-Dec-02 2:31

[System.Runtime.InteropServices.DllImport("wininet.dll")]
public static extern bool InternetGetConnectedState(IntPtr lpSFlags, int dwReserved);

if (!InternetGetConnectedState(new IntPtr(0), 0))
{
// not connected
}

Re: internet connection is up

J. Schermerhorn27-Dec-02 2:37

J. Schermerhorn

27-Dec-02 2:37

Try and use the following code. Other than the using System.Runtime.InteropServices, I have not added an additional resources to the project. I hope this helps you.

-John

<code>
using System;
using System.Runtime.InteropServices;

namespace CSProject
{
	/// <summary>
	/// Summary description for Class1.
	/// </summary>
	class ConsoleApp
	{
		/// <summary>
		/// The main entry point for the application.
		/// </summary>
		[STAThread]
		[DllImport("wininet.dll")]
		public static extern bool InternetGetConnectedState(double dFlags);

		static void Main(string[] args)
		{
			double dFlags = 0;
			bool bResult = InternetGetConnectedState(dFlags);
			
                            Console.WriteLine("Internet Connection: {0}", bResult.ToString());
                            //
			// TODO: Add code to start application here
			//
		}
	}
}
</code>

Re: internet connection is up

karanba27-Dec-02 7:44

karanba

27-Dec-02 7:44

Thanx All a get what I need
Smile | :)

karanba

ISP

karanba26-Dec-02 2:05

karanba

26-Dec-02 2:05

How can I detect the ISP(internet service provider) with my program.
thanx

karanba

Re: ISP

Tatham26-Dec-02 17:52

Tatham

26-Dec-02 17:52

The internet doesn't really work like this.

Try running pathping www.google.com at your command prompt. You could try running a trace like this from within .NET and look at the second or third hop but it wouldn't be very reliable.

To capture the ouptut of pathping off the command line see my other post at http://www.codeproject.com/script/comments/forums.asp?msg=375367&forumid=1646#xx375367xx[^]

Tatham Oddie (VB.NET/C#/ASP.NET/VB6/ASP/JavaScript)
tatham@e-oddie.com
+61 414 275 989

Re: ISP

karanba27-Dec-02 0:12

karanba

27-Dec-02 0:12

thanx.
And I also what to detect current bandwidth. What could I do?

karanba

Re: ISP

Tatham27-Dec-02 19:27

Tatham

27-Dec-02 19:27

Check out:

http://www.bandwidthplace.com/speedtest/[^]

You may be able to implement something like this.

Tatham Oddie (VB.NET/C#/ASP.NET/VB6/ASP/JavaScript)
tatham@e-oddie.com
+61 414 275 989

Re: ISP

Bog30-Dec-02 9:48

Bog

30-Dec-02 9:48

No. Bad. You can't ping someone else's website as part of your application or service unless you have an agreement with them. There is such a thing as a ping attack. ibm.com no longer responds to ping, for example, because people were using it in this way. If google decides to do the same, his app won't work anymore. Your solution is good if his app is noncommercial or not used by many people.

"Outside of a dog, a book is Man’s best friend. And inside of a dog, it’s too dark to read."
-Groucho Marx

copy file?

imran_rafique26-Dec-02 1:12

imran_rafique

26-Dec-02 1:12

how to copy one file from one path to another path (and over wight it ).

r00d0034@yahoo.com

Re: copy file?

David23g27-Dec-02 11:56

David23g

27-Dec-02 11:56

You need to use the CopyTo() method of the FileInfo Class.

foreach (FileInfo file in filesInDirInfo)
{
file.CopyTo(newDirName);
}

david23g

how can I get a reference type object memory size

fftongzhi25-Dec-02 15:07

fftongzhi

25-Dec-02 15:07

I use a DataSet load a DBtable,and I want to know how many memory were used by the DataSet object.
sizeof keyword and System.Runtime.InteropServices.Marshel.SizeOf method can only be used for unmanaged objects.

how can I get a reference type object memory size???
Confused | :confused:

lost my way

Re: how can I get a reference type object memory size

Nick Parker25-Dec-02 17:52

Nick Parker

25-Dec-02 17:52

fftongzhi wrote:
how can I get a reference type object memory size???

You can do something like this:

     DataSet ds = new DataSet();
IntPtr p = Marshal.StringToHGlobalAnsi(ds.ToString());
MessageBox.Show("Size: " + Marshal.SizeOf(p));
Marshal.FreeHGlobal(p);

[EDIT] On second thought, that is only giving you the size of a string. I will have to look into this.[/EDIT]

Nick Parker

You see the Standards change. - Fellow co-worker

Re: how can I get a reference type object memory size

fftongzhi25-Dec-02 19:17

fftongzhi

25-Dec-02 19:17

convert a object to string and get the string size,I have also felt that is a way.But some object contents can not conver to string ,you can just try this
byte[] bytelist=new byte[10]{1,2,3,4,5,6,7,8,9,10};
bytelist.tostring()=="byte[]" not the realy things we want. "12345678910"
so tostring can not get the size of a ref object :$
my method is write the object in to a memory stream and get the stream.length.
I feel some silly about this way，but where is the right way??
you can not get a object memory size in .net??? It means I made a world but I don't know what is it like!!! my god!!!!!!!!!!! Dead | X|

lost my way

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