home *** CD-ROM | disk | FTP | other *** search
- Newsgroups: comp.os.ms-windows.programmer.tools
- Path: sparky!uunet!usc!sdd.hp.com!apollo.hp.com!netnews
- From: nelson_p@apollo.hp.com (Peter Nelson)
- Subject: TDW bug?
- Sender: usenet@apollo.hp.com (Usenet News)
- Message-ID: <Bs3wov.AL4@apollo.hp.com>
- Date: Tue, 28 Jul 1992 16:05:19 GMT
- Nntp-Posting-Host: c.ch.apollo.hp.com
- Organization: Hewlett-Packard Corporation, Chelmsford, MA
- Lines: 48
-
-
-
- I'm a beginning Windows programmer using Borland C/C++ 3.1
- and TDW (in dual screen mode) to learn about scroll bars and
- message handling.
-
- But when I'm using TDW, with a breakpoint set in my WndProc
- at my case for WM_VSCROLL, specif. in the SB_LINEDOWN code, I get
- multiple (like 100's) of WM_VSCROLL messages with SB_LINEDOWN
- parameters for a single click of the mouse on the "down" button
- of the scroll bar!
-
- The program seems to behave normally if I'm not using TDW.
-
- On comp.os.ms-windows.programmer.misc someone suggested that
- it never gets the "release" of the mouse button because
- control is immediately passed to TDW due to the breakpoint,
- so it thinks the mouse button is being held down.
-
- Someone else observed the same behavion with the Microsoft
- debugger.
-
- I called Borland's tech support and they said they had never heard
- of any problems like this. So I called Borland's 900 tech support
- line and they said "of course" this problem exists! I guess this means
- Borland will give you the wrong answer for free, but you have to pay
- $2 a minute to get the right answer!
-
-
- I also noted that my programs crash with an Exception 13 (addressing
- error -- in TextOut, according to TDW) when I try to run them and
- Winsight at the same time. Even Petzold's "Hello Windows" program
- screws up -- not crashing, but outputting garbage text instead of
- "hello windows" -- when Winsight is running, although it's well-behaved
- otherwise.
-
- Comments or Winsight insight?
-
- Thanks in advance.
-
-
- ---peter
-
-
-
-
-
-
-