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Does anyone know how you select a pixel from a BitmapImage instance, say the one at 0.0, and set that as the transparent color for a bitmap.
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Have a look at the Bitblt in Win32 APIs.
thats one way fo doing this, though through Interop in .NET
Excelsior
Arjun Bahree
"By The Might of Mjolnir"
I Came! I Coded! I Conquered!
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Thanks for that.
With Windows Forms etc it was easy just
bitmap.MakeTransparent(bitmap.GetPixel(0, 0));
and I'm sure Bitblt would do it but I always try and avoid unmanaged code as it seems like such a backward step especially with WPF and XAML on the horizon.
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try this[^]
hope that helps,
it did me
g00fy 
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Wow.And to think I just used to write
bitmap.MakeTransparent(bitmap.GetPixel(0, 0));
Still, that's progress for you.
Thanks for the info, I'll give it a try.
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Hello !
I have a question about DB specifications :
Do we have to call IDbCommand.Dispose ?
What does IDbCommand.Dispose mean?
We have problem doing this :
<br />
IDbConnction pipe = new OleDbConnection(connString);<br />
IDbCommand command = pipe.CreateCommand();<br />
command.QueryString = "select ...";<br />
IDataReader reader = command.ExecuteReader();<br />
command.Dispose();<br />
reader.Close();<br />
pipe.Close();<br />
The problem get solved if we don't do IDbCommand.Dispose
Your comments would be very helpful. Thanks.
Sovann
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You cannot Dispose Command Object after ExecuteReader Method, the datareader object maintains the connection to the database as it will not pull all data at once, and it will pull data record by record. So dispose the command object after getting all the data.
Naveen G
MCSD.Net
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Thank you. Anyway, do we have to call IDbCommand.Dispose ?
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Whenever a class exposes a Dispose method you should definitely call it as it frees resources immediatly. You can take advantage of the using statement that automatically calls Dispose on an object when execution leaves its scope. Simple example taken from MSDN.
using (Font font1 = new Font("Arial", 10.0f))
{
}
"Programming today is a race between software engineers striving to build bigger and better idiot-proof programs, and the Universe trying to produce bigger and better idiots. So far, the Universe is winning." - Rick Cook www.troschuetz.de
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Thank you. Your comment has been very helpful 
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Hi all,
i just want to know how to trim away the last part of a string in a variable...
I have the following:
string strNum = "0821234567,0721234567,0831234567,"
string strNum2 = "";
if(strNum.EndsWith(","))
{
<How Do i trim the last character away? I just need to get rid of the "," at the end>
}
"Many of life's failures are people who did not realize how close they were to success when they gave up." Thomas A. Edison
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You create a new string from the part of the string that you want to keep:
strNum = strNum.SubString(0, strNum.Length - 1);
---
b { font-weight: normal; }
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Thank you for your time...
"Many of life's failures are people who did not realize how close they were to success when they gave up." Thomas A. Edison
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Hmm, you should consider using "Trim" or "TrimEnd" instead of "Substring" - after all, you want to - well - trim
It will save you the clumpsy "if" construction as well.
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Thank you, the first one worked. so after i checked if there is a "," at the end of the string it just leaves it out. but i'll use the trim end next time.  thanks.
"Many of life's failures are people who did not realize how close they were to success when they gave up." Thomas A. Edison
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On another note, something faster, and optimized than substring or trimending
(think what shall happen calling substring on a very huge string?)
strNum[strNum.Length-1] = string.Empty;
There are few scenarios where this will be the best and others where this wont be a better idea.
Excelsior
Arjun Bahree
"By The Might of Mjolnir"
I Came! I Coded! I Conquered!
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Two problems with your code:
strNum[index] is a char. string.Empty is a string. You can't assign a string to a char.
Strings can't be changed. Hence strNum[index] is a read-only indexer.
So I do not see how this should work. Using a StringBuilder might help if the strings are repeatedly modified, but for a single trim operation it would not make any sense.
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I'm try to write my own picture viewer using the MDI format.
Have the basic setup done.
Need help on how to load a picture/image into the active ChildMDI form.
Do you load the picture/image into a picturebox or something else.
Thanks,
Steve C#freak
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Easiest way is to load it into a pictureBox. You can do something like:
Image image = Image.FromFile( "c:\\blah.jpg" );
pictureBox.Image = image;
My pointless rants
http://meragussa.blogspot.com
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Thanks for the help.
I'm trying to load the image into the activeChild.
Do not know how to go about this.
eg; select open image from the MdiParent, and have it open in the active MdiChild form.
Greatfull for all comments/Help given.
Thanks
Steve C#freak
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In the main application which is the parent of all MDI Child form do something like
((MyMdiForm)this.ActiveMdiChild).SetImage( image );
ActiveMdiChild will get you the active mdi child. You need to make sure your MDI child supports a Method to accept an Image or file path to an image.
In MyMdiForm.SetImage( Image image );
Do something like:
pictureBox.Image = image;
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Acctually I have one radio server.when I connect that server from Windows Media Player it is not connecting,but it is working fine for apple Itune and Quick time player,can anyone tell me why is it happening?Do i need to do some special settings in Media Player????
nishu
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Are you trying to connect using C#, or have you posted this in a completely irrelevant message board?
---
b { font-weight: normal; }
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My Server is in c# only!!!
nishu
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