Re: SHGetFileInfo icon and dispose - C# Discussion Boards

Alex Korchemniy17-Jul-05 14:32

17-Jul-05 14:32

See: RegisterHotKey function in MSDN

Tip: perform a search on google "registerhotkey site:msdn.microsoft.com"

Alex Korchemniy

Re: redirect shortcut key

Sabry190517-Jul-05 21:20

Sabry1905

17-Jul-05 21:20

i know this, but its still not the solution coze first i have to catch the message of (win logo+D) then disable it -(all the time when my program is running)- and then send another message (win logo+M)
thats all Smile | :)

getting registered file extensions

g00fyman16-Jul-05 20:53

g00fyman

16-Jul-05 20:53

hi to all,

i am trying to get all registered file extensions on a system so i can filter queries to the filesystem that is displayed in a ListView Control

i am iterating the subkeys of CLASSES_ROOT but i am getting alot of keys that do not appear within the display of the Windows 'add new file type' list box. is there a way to only get this list of extensions ?

i will paste my code which basically just gets all subkey names starting with '.'

<br />
public IList<string> GetFileTypes()<br />
        {<br />
            IList<string> fileTypes = new List<string>();<br />
            RegistryKey root = Registry.ClassesRoot;<br />
            string[] subkeys = root.GetSubKeyNames();<br />
<br />
            foreach (string key in subkeys)<br />
            {<br />
                if (key.StartsWith("."))<br />
                {<br />
                    fileTypes.Add(key.Substring(1));<br />
                }<br />
            }<br />
            return fileTypes;<br />
        }<br />

thanx to all,
g00fy

Re: getting registered file extensions

g00fyman17-Jul-05 2:05

g00fyman

17-Jul-05 2:05

ok so i can get them now without any problems, the same as MS file types window but the icon is not displayed, y is this so ?

i am definitley getting the icons (both large and small) i can see it when debugging, but they dont appear in listview control, my code is long so i will have to email if someone can help but i am basically

...

iterating the registry keys to find file types, adding the small and large icons to thier respective imagelists (iteratively) and then adding the string array of extension and description to the listviews items list (also iteratively).

...

this is all done in InitaliseValuesInControl()

<br />
public FileTypeControl()<br />
        {<br />
            InitializeComponent();<br />
<br />
            handler = new IconHandler();<br />
            fileEntries = new Dictionary<string, FileType>();<br />
<br />
            InitaliseValuesInControl();<br />
<br />
        }<br />

i have tried to pull all code from InitializeComponent() and put it into the InitaliseValuesInControl() method so i was drawing the control after the imagelists and item list were populated but it still doesnt display the image.

any ideas please ?

kind regards,
g00fy

Re: getting registered file extensions

g00fyman17-Jul-05 3:34

g00fyman

17-Jul-05 3:34

I fixed it, found an overload method i could use

Big Grin | :-D

SHGetFileInfo icon and dispose

CiNN16-Jul-05 17:03

CiNN

16-Jul-05 17:03

I am using a dllimport of SHGetFileInfo to retrieve a file icon, and then add it to an image list.
is there something i need to disposse ?

this line

<br />
this.iconsListSmall.Images.Add( FileGetIcon( fi.FullName, true ) );<br />

and this function

<br />
        public static Icon FileGetIcon( string strPath, bool bSmall )<br />
        {<br />
            <br />
            SHFILEINFO info = new SHFILEINFO( true );<br />
            uint cbFileInfo = ( uint )Marshal.SizeOf( info );<br />
            SHGFI flags;<br />
            if ( bSmall )<br />
                flags = SHGFI.Icon | SHGFI.SmallIcon | SHGFI.UseFileAttributes;<br />
            else<br />
                flags = SHGFI.Icon | SHGFI.LargeIcon | SHGFI.UseFileAttributes;<br />
<br />
            SHGetFileInfo( strPath, 256, out info, cbFileInfo, flags );<br />
            return System.Drawing.Icon.FromHandle( info.hIcon );<br />
        }<br />

Re: SHGetFileInfo icon and dispose

Alex Korchemniy17-Jul-05 14:35

Alex Korchemniy

17-Jul-05 14:35

Well if you search google: "SHGetFileInfo site:msdn.microsoft.com"

You will see towards the bottom of the page: If SHGetFileInfo returns an icon handle in the hIcon member of the SHFILEINFO structure pointed to by psfi, you are responsible for freeing it with DestroyIcon when you no longer need it.

Alex Korchemniy

Re: SHGetFileInfo icon and dispose

CiNN17-Jul-05 15:06

CiNN

17-Jul-05 15:06

so should i

<br />
icotmp = FileGetIcon( fi.FullName, true );<br />
this.iconsListSmall.Images.Add( icotmp );<br />

<br />
DestroyIcon( icotmp.Handle );<br />

<br />
icotmp.Dispose();<br />

or should i free it in FileGetIcon() before returning the copied icon in a system.drawing.icon

<br />
FileGetIcon()<br />
..<br />
DestroyIcon( info.hIcon  );<br />
Icon ico = System.Drawing.Icon.FromHandle( info.hIcon );<br />
return ico;<br />

Take screenshots using C#?

Lord Kixdemp16-Jul-05 16:25

Lord Kixdemp

16-Jul-05 16:25

Hello! (Two posts in a row!) Big Grin | :-D

Question now is, how do I take screenshots in C#? I searched for articles but the only one I found was for C++... Frown | :(

Thanks!

Darth_Sulfur (Sulfurik)
http://www.SulfurSoft.tk
ftp://tsfc.ath.cx
http://tsfc.ath.cx
hotline://tsfc.ath.cx

Re: Take screenshots using C#?

bneacetp16-Jul-05 17:02

bneacetp

16-Jul-05 17:02

See if this article helps you out. http://www.codeproject.com/csharp/cscapturescreen1.asp[^]

John 3:16: "For God so loved the world, that he gave his only begotten Son, that whosoever believeth in him should not perish, but have everlasting life."

Re: Take screenshots using C#?

Lord Kixdemp16-Jul-05 18:45

Lord Kixdemp

16-Jul-05 18:45

Yep, just what I needed! Thanks! Wink | ;)

Darth_Sulfur (Sulfurik)
http://www.SulfurSoft.tk
ftp://tsfc.ath.cx
http://tsfc.ath.cx
hotline://tsfc.ath.cx

Paint control?

Lord Kixdemp16-Jul-05 16:18

Lord Kixdemp

16-Jul-05 16:18

Hello everybody! Big Grin | :-D

OK, does anyone know of a paint control, similar to the one in MS Paint?
Thanks! Wink | ;)

Darth_Sulfur (Sulfurik)
http://www.SulfurSoft.tk
ftp://tsfc.ath.cx
http://tsfc.ath.cx
hotline://tsfc.ath.cx

Re: Paint control?

Tomas Petricek17-Jul-05 1:53

Tomas Petricek

17-Jul-05 1:53

You can look at this project: http://www.eecs.wsu.edu/paint.net/index.htm[^]

Tomas Petricek (Microsoft C# MVP)
www.eeeksoft.net | Photos | ASP.NET Multi-column layout control

Re: Paint control?

Lord Kixdemp17-Jul-05 6:11

Lord Kixdemp

17-Jul-05 6:11

Thanks!

I'll try to extract the thing from the code. Thanks! Wink | ;)

Darth_Sulfur (Sulfurik)
http://www.SulfurSoft.tk
ftp://tsfc.ath.cx
http://tsfc.ath.cx
hotline://tsfc.ath.cx

Asynchronous Comms

Anonymous16-Jul-05 13:15

Anonymous

16-Jul-05 13:15

Does anyone know how to write a function in c# to connect with a modem and report back to the caller the result using th MS Comm Control in .Net?

Thanks
Chris

bandwidth usage

Mohamad Al Husseiny16-Jul-05 10:37

Mohamad Al Husseiny

16-Jul-05 10:37

i want to know how much bandwidth the computer connected
to the internet used and when the internet is idle
i mean no app or user access the internet
thanks in advance

Help with client server apps, please!

Member 161964216-Jul-05 9:26

Member 1619642

16-Jul-05 9:26

I've been trying to code two apps recently, a client and a server. The client will try to send 7 strings to the server, which will then store them in string variables again. The problem I've been having is that the messages arrive jumbled up. I scrapped the code after working on it for hours D'Oh! | :doh:

. Anyway, to cut a long story short I could really use some example code, the only requirement is that the server code can be run in a new thread.

Many thanks,

Paul

auto select tree node

Anonymous16-Jul-05 9:19

Anonymous

16-Jul-05 9:19

hey all,
i'm tring to select a tree node automaticly when a user types the search string in a text box, I currently have the textbox set to scroll the treeview to the result of the query, but it does not select it, the root node is still selected. I have tried everything i can think of and nothing works,
I would like for it to do like the windows help does when you type your search string into the text box, it scrolls asyou type each letter till it finds the full string value of what you typed.

thanks

Re: auto select tree node

Luis Alonso Ramos16-Jul-05 18:39

Luis Alonso Ramos

16-Jul-05 18:39

So, you already got the node that should be selected? then it's easy: set the SelectedNode property of the tree view and that's it.

treeView.SelectedNode = nodeThatIFound;

I hope this helps!

-- LuisR

Luis Alonso Ramos
Intelectix - Chihuahua, Mexico

Not much here: My CP Blog!

Re: auto select tree node

Anonymous17-Jul-05 10:09

Anonymous

17-Jul-05 10:09

Tried that....doesn't work (at first) cause i was trying to use it outside the method it was being created it. so now that i got over my stupidity and took a guess at putting it inside the method it works beautifully..

thanks for the help,
D'Oh! | :doh:

!!!

Re: auto select tree node

Luis Alonso Ramos17-Jul-05 10:13

Luis Alonso Ramos

17-Jul-05 10:13

You're welcome! I'm glad it helped!! Smile | :)

-- LuisR

Luis Alonso Ramos
Intelectix - Chihuahua, Mexico

Not much here: My CP Blog!

Security in Asp.net

pakFari16-Jul-05 9:12

pakFari

16-Jul-05 9:12

I am trying to implement security in Asp.net. I designed three pages login.aspx, WebForm1.aspx and WebForm2.aspx.. Every user should first login before accessing WebForm1.aspx and WebForm2.aspx. But my security fails when any user save the address of WebForm1.aspx and directly access it. In other word he may bypass login page. Can anyone solve this problem? thanx

Re: Security in Asp.net

enjoycrack19-Jul-05 0:29

enjoycrack

19-Jul-05 0:29

hi there,

u should post this in asp.net/web deveplopment thread for getting expert's answers

BTW, u can implement the security by checking session. if users access directly webform1.aspx, in this page u must check the info in session whether it's valid or not

hope this helps

<< >>

Import a class that written with another language to the C#

Member 202517616-Jul-05 8:59

Member 2025176

16-Jul-05 8:59

Greeting ,
How can I use a class that written with another compatible .NET language in C#?
How can I write a project that consist of some .NET languages?

Re: Import a class that written with another language to the C#

S. Senthil Kumar16-Jul-05 9:08

S. Senthil Kumar

16-Jul-05 9:08

You can add that class as a separate library project in your solution and reference it wherever you need.

Regards
Senthil
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