Memory leak?

The following C# code runs out of memory with even medium sized files. After calling DACloseFile the memory gets released. Am I missing something that has to be released?


    QuickPDFAX0723.PDFLibrary Lib = new QuickPDFAX0723.PDFLibrary();
            Lib.UnlockKey("xxxx");

            string fnIn = this.buttonEditPDF.Text;
            int DocHandle = Lib.DAOpenFileReadOnly(fnIn, "");

            int PageCount = Lib.DAGetPageCount(DocHandle);
            for (int i = 0; i < PageCount; i++)
            {
                int PageHandle = Lib.DAFindPage(DocHandle, i + 1);

                int ImageListHandle = Lib.DAGetPageImageList(DocHandle, PageHandle);
                int ImageCount = Lib.DAGetImageListCount(DocHandle, ImageListHandle);

                for (int ii = 0; ii < ImageCount; ii++)
                {
                    var ImageBuffer = Lib.DAGetImageDataToVariant(DocHandle, ImageListHandle, ii + 1);
                    byte[] b = ImageBuffer as byte[];
                }
            }

            MessageBox.Show("Done");

            Lib.DACloseFile(DocHandle);

It's a good idea to close to the file from time to time. I hope the performance won't suffer too much.

I hope QuickPDF are aware of the DAFindPage problem and will fix it soon.

That's probably the way to go.