C# Discussion Boards - CodeProject

viliam23-Oct-03 2:58

23-Oct-03 2:58

I am C# beginner. I just started to practise
on console aplications.
And I already have problem.
How to supply C function _getch()
i.e. Get a character from the console.
Thanx

viliam

Re: _getch()

Mike Dimmick23-Oct-03 3:31

Mike Dimmick

23-Oct-03 3:31

Your best bet is probably to write a DLL in C that performs any low-level input, then use the Platform Invoke feature to access that.

You can also P/Invoke _getch directly.

[DllImport("msvcr71.dll", CallingConvention = CallingConvention.Cdecl)]
static extern int _getwch();

[STAThread]
static void Main(string[] args)
{
   Console.WriteLine( "Press any key to continue" );
   Console.Out.Flush();
 
   char ch = (char) _getwch();
 
   Console.WriteLine( "You pressed {0}", ch );
}

You must call Flush, because the Console class performs buffering on the stream. Failing to do so can cause the prompt to be displayed after _getwch executes, not before.

Note that I used the wide-character version, _getwch, because the CLR uses wide characters internally.

Re: _getch()

J. Dunlap23-Oct-03 8:53

J. Dunlap

23-Oct-03 8:53

What about Console.Read() ? Doesn't that work?

"A journey of a thousand miles begins with a single step." -- Confucius

FLUID UI Toolkit | FloodFill in C# & GDI+

Re: _getch()

leppie23-Oct-03 9:12

leppie

23-Oct-03 9:12

that still echos the character Frown | :(

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Re: _getch()

J. Dunlap23-Oct-03 9:17

J. Dunlap

23-Oct-03 9:17

Oh ok... I guess I missed the point of the post. D'Oh! | :doh:

"To know what is right and not do it is the worst cowardice." -- Confucius

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Re: _getch()

shaunAustin26-Oct-03 21:58

shaunAustin

26-Oct-03 21:58

Actually I don't think you did... I'm sure he just wants to read some character from the console...

-----------------------------------------------------------------------
Shaun Austin: .NET Specialist. Spreading the word of .NET to the world... well the UK... well my tiny corner of it!! Big Grin | :-D

Playing a simple sound with C#

bsargos23-Oct-03 1:52

bsargos

23-Oct-03 1:52

Hi,

I would enjoy playing a short custom sound with C# (like a beep) when the mouse moves over a button for example, like Ineternet Explorer does.
Would anybody help me ? Thanks.

Re: Playing a simple sound with C#

Judah Gabriel Himango24-Oct-03 4:25

Judah Gabriel Himango

24-Oct-03 4:25

Use managed DirectX or use P/Invoke to call the play sound method in the Win32 API.

The graveyards are filled with indispensible men.

How to configure an Ethernet connection?

azazel1234523-Oct-03 1:28

azazel12345

23-Oct-03 1:28

Hi all.

I'm trying to set the IP of my NIC's. I have found nice examples showing how to get the IP through the WMI, but how can I set it?

All hints are appreciated.

Regards,
Christian Sternell

Re: How to configure an Ethernet connection?

Giles23-Oct-03 3:03

Giles

23-Oct-03 3:03

As far as I know, you can't without going through the natice API, and configuring it with no DHCP, and then setting a static ip address.

"Je pense, donc je mange." - Rene Descartes 1689 - Just before his mother put his tea on the table.

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Re: How to configure an Ethernet connection?

azazel1234523-Oct-03 4:04

azazel12345

23-Oct-03 4:04

Thanks for the answer, Giles.

That was a little discouraging, but I'll see what I can do about it.

If anyone out there has a piece of code for this - please post if for me.

Regards,
Christian Sternell

Re: How to configure an Ethernet connection?

Kentamanos23-Oct-03 7:36

Kentamanos

23-Oct-03 7:36

I'm pretty sure I had a friend do it in C++ once using WMI (NetworkConfiguration class). If you can do it in C++, I would assume you could wrap it in C#.

C# with Mac OS-X

robi@robisoft.it23-Oct-03 0:48

robi@robisoft.it

23-Oct-03 0:48

Can I compile my c# application under MacOS-X? Confused | :confused:

Bye, Roberto Ferro

Re: C# with Mac OS-X

jparsons23-Oct-03 2:29

jparsons

23-Oct-03 2:29

Yes and no.

If your application contains no GUI then you can most likely compile the appliaction for Mac OS-X. However you'll need a different version of the .NET Framework to compile your code. Check out www.go-mono.com[^]

If your application contains any GUI code then it will be much less likely to work with Mono

Jared
jparsons@jparsons.org
www.prism.gatech.edu/~gte477n

Re: C# with Mac OS-X

leppie23-Oct-03 7:16

leppie

23-Oct-03 7:16

jparsons wrote:
Check out www.go-mono.com[^]

Mono only runs on windows and GNU Linux!!!

Get Portable.NET, runs on anything Smile | :)

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Re: C# with Mac OS-X

Giles23-Oct-03 3:07

Giles

23-Oct-03 3:07

Probably 2 choices , Mono by Ximian, or Rotor, which is a shared source implementation by Microsoft that compiles on Windows XP and Free/Open/Net BSD Unix's.

Mono on Linux makes use of Wine to do the GUI bit, though I have no idea about Rotor.

"Je pense, donc je mange." - Rene Descartes 1689 - Just before his mother put his tea on the table.

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Re: C# with Mac OS-X

Mike Dimmick23-Oct-03 3:44

Mike Dimmick

23-Oct-03 3:44

System.Windows.Forms is not included in Rotor. You can get Rotor from http://www.microsoft.com/net/sscli/[^].

Re: C# with Mac OS-X

leppie23-Oct-03 7:14

leppie

23-Oct-03 7:14

Portable .NET runs under OSX, they have winforms too.

www.dotgnu.org[^]

leppie ::AllocCPArticle("Zee blog");
Seen on my Campus BBS: Linux is free...coz no-one wants to pay for it.

Re: C# with Mac OS-X

robi@robisoft.it24-Oct-03 21:44

robi@robisoft.it

24-Oct-03 21:44

The application created with Portable .NET runs under OSX, but the compiler runs only under Linux. Is it true?

Re: C# with Mac OS-X

leppie24-Oct-03 22:02

leppie

24-Oct-03 22:02

AFAIK, everything runs under OSX

leppie ::AllocCPArticle("Zee blog");
Seen on my Campus BBS: Linux is free...coz no-one wants to pay for it.

DataGrid Columns

Mazdak23-Oct-03 0:26

Mazdak

23-Oct-03 0:26

My datagrid is binded to a table in database but I don't want that all column shown in datagrid.How can I do it?

Mazy

No sig. available now.

Re: DataGrid Columns

Ryan_Roberts23-Oct-03 3:06

Ryan_Roberts

23-Oct-03 3:06

Uncheck 'Auto generate columns' and then manualy add bound columns using the property builder.

HTH

Ryan

Custom Rich Edit Box

SaeidehV23-Oct-03 0:12

SaeidehV

23-Oct-03 0:12

Hi
I want to create a custom edit box, but because it is not allowed to overwrite
its OnPaint() method I cannot derive my class from edit box class and I have to write it from scratch, but the problem is how I can make a custom control
editable.

Thanks in advance
S

Form opacity

Georgi Atanasov22-Oct-03 23:57

Georgi Atanasov

22-Oct-03 23:57

Hi,

I have the following question:
May I have areas with different opacity on a form (I read about the transparency key but it makes the areas completely transparent and need some opacity, not transparency)
Because when you specify the opacity for a form - let's say 0.5 (50%) all the controls have the same transparency level.
Also I don't want to use API calls like UpdateLayeredWindow, SelecteObject, DeleteObject, GetWindowDC, etc.

Thanks in advance,
Georgi

printing

brain2cpu22-Oct-03 23:33

brain2cpu

22-Oct-03 23:33

how could be saved PrinterSettings: first time the user make his choises, after that I want to use the same settings (page size, orientation, ...)

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.