C# Discussion Boards - CodeProject

DaveyM6927-May-09 22:44

DaveyM69

27-May-09 22:44

Do you mean you want to refresh the entire view in the monitor?

If so, you'll have to use some PInvoke and at a minimum, get the desktop's handle and call InvalidateRect or UpdateWindow. You may need to do this for every open window too.

Dave
BTW, in software, hope and pray is not a viable strategy. (Luc Pattyn)
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Rajdeep.NET is BACK27-May-09 23:39

27-May-09 23:39

Is there some comprehensive way to this? I mean to say that this is quite difficult.

PS: I only want to refresh the desktop.

What about this:

private void Button1_Click(object sender, System.EventArgs e)    {        
SendKeys.Send("{ENTER}");    
}

Please let me know.

DaveyM6928-May-09 1:06

DaveyM69

28-May-09 1:06

It seems the easiest way to do this is to make the shell think file associations have changed. When it does, it redraws the desktop. Not sure how 'expensive' this is - but it works.

SHChangeNotify(SHCNE_ASSOCCHANGED, 0, 0, 0);

[DllImport("shell32.dll")]
static extern void SHChangeNotify(uint wEventId, uint uFlags, uint dwItem1, uint dwItem2);

const uint SHCNE_ASSOCCHANGED = 0x08000000;

molesworth27-May-09 22:47

molesworth

27-May-09 22:47

Invalid_Win32_app. wrote:
I am trying to refresh the machine

What exactly do you mean by "refresh the machine"? Do you mean reboot?

There are three kinds of people in the world - those who can count and those who can't...

Rajdeep.NET is BACK27-May-09 22:57

27-May-09 22:57

molesworth wrote:
What exactly do you mean by "refresh the machine"? Do you mean reboot?

Not Reboot, I am just trying to refresh the PC, like we do by right-clicking on an empty space on the desktop and clicking on the Refresh option from the menu display. Thats what I want to do.

tom57200727-May-09 23:07

tom572007

27-May-09 23:07

Your request is totally dumb! refresh the system doesn't mean anything.
Refresh your desktop doesn't mean to refresh your system...
Try to be more explicit Rajdeep

Rajdeep.NET is BACK27-May-09 23:31

27-May-09 23:31

I think this should do:

private void button1_Click(object sender, EventArgs e)
        {
            SendKeys.Send("{F5}");
        }

What do you say?

PS: How did you know that I am Rajdeep?

Anthony Mushrow27-May-09 23:34

Anthony Mushrow

27-May-09 23:34

Invalid_Win32_app. wrote:
PS: How did you know that I am Rajdeep?

You can see the last 200 messages somebody has posted.

My current favourite word is: Delicious!

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Game Programming articles start -here[^]-

Dan Neely28-May-09 2:18

Dan Neely

28-May-09 2:18

Your level of stupidity is unique.

It is a truth universally acknowledged that a zombie in possession of brains must be in want of more brains.
-- Pride and Prejudice and Zombies

harold aptroot27-May-09 23:35

harold aptroot

27-May-09 23:35

Hey Rajdeep.NET, did you think that we wouldn't notice if you changed your name?
You're still asking strange questions.

Now I don't really know about this refresh thing, this is not normally something you even need to consider doing. Why do you even need to do this?
Anyway, I'd look into sending a F5 keypress, like you suggested..

Rajdeep.NET is BACK27-May-09 23:45

27-May-09 23:45

Ok Ok!!! Chill now, I haven't asked any strange question this time.

padmanabhan N27-May-09 23:46

padmanabhan N

27-May-09 23:46

y do u frequently change you name.... do you think that we are fools here...

Padmanabhan

tom57200728-May-09 0:19

tom572007

28-May-09 0:19

Invalid_Win32_app. wrote:
Ok Ok!!! Chill now, I haven't asked any strange question this time.

This question is very strange, to refresh your system, you need to reboot your PC (after changing registery keys...). How does windows refreshing itself after an update? It just reboot..

To press F5 on tour desktop only refresh the 'explorer.exe' program, but not your system who's loaded on startup. To press F5 on your application will do anything Smile | :)

not even refresh your 'explorer' application.

Try to discover the basics of windows before trying to hack it...

padmanabhan N27-May-09 23:45

padmanabhan N

27-May-09 23:45

now that guy has changed his name to x+y=xy?!

some one has to take care of his activities....

Padmanabhan

Rajdeep.NET is BACK27-May-09 23:51

27-May-09 23:51

Not all are fools, rather than you!

Listing Directories and Files from Web Server

padmanabhan N27-May-09 23:56

padmanabhan N

27-May-09 23:56

sit and recollect all your posts and the replies then you will know who is a fool....MR.XYZ

Padmanabhan

himuskanhere27-May-09 21:26

himuskanhere

27-May-09 21:26

Hello Friends
How to get list of files and folders from web server using http protocol?
Cool | :cool:

Re: Listing Directories and Files from Web Server

Ennis Ray Lynch, Jr.28-May-09 1:36

Ennis Ray Lynch, Jr.

28-May-09 1:36

http://www.w3.org/Protocols/rfc2616/rfc2616-sec5.html[^]

Need custom software developed? I do C# development and consulting all over the United States.

A man said to the universe:
"Sir I exist!"
"However," replied the universe,
"The fact has not created in me
A sense of obligation."
--Stephen Crane

Renaming value data

Rajdeep.NET is BACK27-May-09 20:47

27-May-09 20:47

Hi dear friends,

Please check out this code for editing the registry, I have tried this and it works fine:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;
using Microsoft.Win32;

namespace Editing_the_Registry
{
    class Program
    {
        static void Main(string[] args)
        {
            Microsoft.Win32.RegistryKey key;
            key = Microsoft.Win32.Registry.CurrentUser.CreateSubKey("Rajdeep");
            key.SetValue("MyString", "CreatedbyRajdeep");
            key.Close();
        }
    }
}

This piece of code just creates a Subkey called 'Rajdeep' in the HKEY_Current_User Key, and then creates a String value called 'MyString' within the SubKey 'Rajdeep' and sets the value data as 'CreatedbyRajdeep'.

But my issue is different. I want to change the value data of 'HKEY_CURRENT_USER\Control Panel\Desktop\MenuShowDelay\' to '200' from default '400'. It will speed up the Menu display from 400 milliseconds to 200 milliseconds, thus making the PC faster.

Your help will be truly appreciated,
Raj Thumbs Up | :thumbsup:

PS: I am using Virtual PC, since MSDN suggests so.

Colin Angus Mackay27-May-09 20:55

Colin Angus Mackay

27-May-09 20:55

Rajdeep.NET wrote:
It will speed up the Menu display from 400 milliseconds to 200 milliseconds, thus making the PC faster.

Correction: Thus making the animation of the menu faster.

Man who stand on hill with mouth open wait long time for roast duck to drop in

Rajdeep.NET is BACK27-May-09 20:58

27-May-09 20:58

Yes Colin you are right! My english is poor..... sorry for that. Sigh | :sigh:

Colin Angus Mackay27-May-09 21:24

Colin Angus Mackay

27-May-09 21:24

Rajdeep.NET wrote:
My english is poor

The statement was syntactically correct. There was nothing wrong with your English. The statement was inaccurate.

Man who stand on hill with mouth open wait long time for roast duck to drop in

Re: Renaming value data [modified]

Nagy Vilmos27-May-09 21:35

Nagy Vilmos

27-May-09 21:35

For the love of God stop this you Doofus! I have never looked at these classes, but 0.003 secondds of intelisense gave me:

key = Microsoft.Win32.Registry.CurrentUser.OpenSubKey("Is/this/difficult");
key.SetValue("OnlyWhenCalled", "Rajdeep");

Work the rest out yourself.

Panic, Chaos, Destruction.
My work here is done.

Calla27-May-09 21:38

Calla

27-May-09 21:38

You simply have to open the key as writeable and then set the value you want to use.
In your case it would be like this:

RegistryKey key = Registry.CurrentUser.OpenSubKey("Control Panel\\Desktop", true);
key.SetValue("MenuShowDelay", 200, RegistryValueKind.String);
key.Close();

But I agree with the poster above: this would've been very easy to find out on your own..

modified on Thursday, May 28, 2009 3:53 AM

Rajdeep.NET is BACK27-May-09 21:51