Comments on: Drag and Drop Component Suite v4.2 released

By: Anders Melander

Anders Melander — Tue, 27 Jan 2009 22:08:24 +0000

I believe I have just fixed this problem. Please try with the next V5 snapshot when it becomes available (within a week hopefully).

By: Thor Sæther

Thor Sæther — Tue, 17 Jun 2008 12:40:30 +0000

Hello Anders,

I have been using your component suite for a long time, to support interexchange of files within my application and to/from file system, Outlook etc.
However, after I upgraded from 4.1 to version 4.2 (and the 5.0 version), I can no longer stream Outlook msg-files. I use the TDropComboTarget class and stream data as follows:

bytesCopied := myFileStream.CopyFrom(droppedItem, droppedItem.Size);

This works well with version 4.1, but from version 4.2 the droppedItem.Size (TStream instance) reports 0, and the resulting file becomes empty, or 1kb and corrupted. I use Delphi 7 and FastMM4.

Any suggestions?

Best regards

Thor Sæther

By: Anders Melander

Anders Melander — Sun, 01 Jun 2008 18:08:50 +0000

The leaks are known one time leaks and can safely be ignored, but I'll fix them for the next release.

You have a point about the Title property being ansi. I completely forgot that even though an URL can only be ansi, it is quite possible to have a title that requires unicode (?????????). I'll fix that too.

By: Anders Melander

Anders Melander — Wed, 14 May 2008 18:22:00 +0000

I'm sorry, but you'll have to be a bit more specific than that.

By: Kevin Lu

Kevin Lu — Wed, 14 May 2008 17:43:46 +0000

two problem:
1. not support unicode in delphi 7.
2. memory leak.

both v 4.2 and v5.0

By: Kevin Lu

Kevin Lu — Wed, 14 May 2008 07:01:12 +0000

Hi Anders, I found two problems with the component:

Memory leak.
Use MemCheck or FastMM4 and enabled the memory leak detection, run a project with the drag and drop component, you'll see the leak report.
Not unicode compatible with Delphi7.
I capture an URL with TURLDropTarget. Since the Title property is of type string in Delphi 7, the unicode text will be converted to ansistring using local codepage.