[Question] About the problem of increasing memory since the scan

[OilPrince]

Hello!

I'm trying to scan using 'Sample.Winform' inside the ntwain program source.

The function is working normally, and I am monitoring this program as a task manager.

However, after proceeding with the scan, I checked that the memory of the application continues to increase.

After scanning a large amount of paper documents, there is a risk of memory leak later.

Is there a way to manage memory properly?

Please give me some advice on this.

Thank you.

[Ragnorok567]

I had a similar issue. Every time I initiated a scan the memory usage would just continue to grow and no amount of disposes and forced garbage collection would help.
The solution I ended up with was fairly simple. When calling the e.GetNativeImageStream be sure to make sure it is in a using clause like this
if (e.NativeData != IntPtr.Zero)
{
using (Stream stream = e.GetNativeImageStream())
{
if (stream != null)
{
img = Image.FromStream(stream);
}
}
}
It seems when the stream is put into a variable the system will not garbage collect even after flushing, closing, and disposing of the stream.