PLZ Help me On image processing

Question

5.00/5 (1 vote)

See more:

I am writing a program to create an image file say "IMAGE" using the bitmap class of size x,y.
Then I lock the image by using lockbits().
After manipulating the image and unlocking it I saved the image named to a file "IMAGE1" by using the save().

The problem is that even after I unlocked the file "IMAGE" I am not able to delete the file "IMAGE" by help of system.io.fileproperties.delete() command.

But I can Delete the file "IMAGE1" using the same method.

Can anyone PLZ Help me.. :-O

Posted 10-Oct-10 23:17pm

Be Yourself

Add a Solution

2 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

OriginalGriff · Accepted Answer · 2010-10-10T23:27:00

Without seeing your code it is difficult to comment, but the best guess is that you either:
1) Still have the original "IMAGE" file open.
or
2) Have not disposed all the file access variables for the "IMAGE" file. If you open a file for reading, you must dispose of the stream you read it with. Just deleting the reference to the stream or letting it go out of scope is not sufficient - the Garbage Collector may not dispose of it for hours, days, or months. Until it has been disposed, the file system may well consider it in use and forbid deletes.

The best way to handle this kind of thing is to open the file, read it, close it, and then dispose before you start any processing.

Toli Cuturicu · Accepted Answer · 2010-10-11T01:06:00

C#

Bitmap original = new Bitmap("image.png");
Bitmap clone = (Bitmap)original.Clone();
original.Dispose();
// Unlocks "image.png"
original = null;  // optional
// Now forget original. Work only on the clone.
// ...
clone.Save("image1.png");
File.Delete("image.png");
// Or, directly: clone.Save("image.png");
// Overwrites the original file which is now unlocked);

PLZ Help me On image processing

2 solutions

Solution 1

Solution 2

Add your solution here

Preview 0