Hello,
I just can't seem to get this to work right for some reason. I am getting pretty frustrated and I am sure it is an easy fix. I have the following line of code:
Dim
pictForm As Image = Image.FromFile(strFilenameJPG)In the next couple of lines, I draw the image into my graphics object. The strFilenameJPG varaible is just a temp file. When I have completed my grahpics work, I want to delete the file. I use the following line:
Kill (strFilenameJPG)
However, I get an I/O error every time saying that the file is in use. I have tried several methods such as disposing the pictForm object and setting it equal to nothing, but I always get the same error.
Any help would be appreciated.
Tom
Temp Image file is locked and cannot delete
Tey Boon Kiat
Thanks for the reply.
I tried both of your solutions. I rebooted just to see if there was some weird hanging issue. But that didn't do any thing different. I already have full administrator access on this PC.
The problem is only temporary. The temp image file that my visual basic program creates is locked by my program. If I close my program, then I can delete the file just fine through traditional means.
However, I want my program to clean up after itself programmatically. I want to delete the temp file within the program after I have incorporated it into my graphics object. It is when I attempt this process in my visual basic program that I get the I/O error.
Thanks,
Tom
FranklinBAH
Ah, so when you close your program the file can be deleted, I thought it is still locked even after exiting.
In this case try the following (works 100% - you just need to destroy the object):
Module Module1
Sub Main()
Dim pictfrm As Drawing.Image = Drawing.Image.FromFile("c:\asd.jpg")
pictfrm.Dispose()
IO.File.Delete("c:\asd.jpg")
End Sub
End Module
Nimble
Hello:
I have the same problem. I can't find anyway to fix.
Help appreciated.
Carlos
Kent Boogaart
Instead of kill (which I never heard about before) you can try using system.IO.File.delete or the fileinfo class in the same namespace.
Jeremy Corson
Thanks again for the reply.
Unfortunately, the code that you posted above is exactly what I am doing in my sub routine. Only I am getting the I/O error when the IDE gets to the Delete File command. It seems as though the dispose command isn't really freeing the JPG file.
Any other ideas
Tom
Ravindra Reddy Kasireddy
I had the same problem a few days ago while implementing a twain scanner dialog. The problem lies with the bitmap / image object locking the file until application is closed.
This is the code I used to get around the issue
Dim myimage As Image
Dim myimagestream As New IO.FileStream(filename, IO.FileMode.Open)myimage = Bitmap.FromStream(myimagestream)
myimagestream.Close()
myimagestream.Dispose()
Ritesh Singh
I found out what the problem is. One of the references I was using in my project was a library for PDF creation. This library also has an image object, but their seems to be a problem with the library's dispose function.
Anyhow, one I specified to use the drawing image object, everything worked out fine.
Thanks for the help.
Tom