Article View: comp.os.ms-windows.programmer.misc
Article #1798Problems calling a DLL function from a VB app. PLEASE HELP!
From: tvp
Date: Tue, 15 Dec 1992 13:58
Date: Tue, 15 Dec 1992 13:58
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1801 bytes
Okay, I posted a few days ago about not wanting the screen to blank
for the few seconds it took me Shell() out to DOS to run an .exe
utility (written in C) that I was calling from inside my VB app.
I rewrote the inside of my C source to compile it into a .dll file.
Then I followed the instructions in the VB manuals to declare and call
the function inside the DLL that was replacing the standalone C app I
used to use under DOS. But when I hit F5 to test the VB app, and get
to the part where I push the command button that will cause the DLL
function to be called, it fails and tells me:
"Function or sub undefined"
It also highlights the line where the function is called in the
source. This is pretty maddening because the function IS defined
right there in the Declarations section of the form. And it's defined
correctly as far as I can tell too, it's of the proper type, with no
mispellings in the Function name or the Lib path. Does anyone know
what's up and how I can fix it? I'M STUCK!
Thanks in advance to anyone who can help me.
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Tad Perry Internet: tvp@gibdo.engr.washington.edu
CompuServe: 70402,3020
NIFTY-Serve: GBG01266
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Path: arc1-ca.pugleaf.net!sparky!uunet!ogicse!news.u.washington.edu!gibdo!tvp From: tvp@gibdo.engr.washington.edu Newsgroups: comp.os.ms-windows.programmer.misc Subject: Problems calling a DLL function from a VB app. PLEASE HELP! Message-ID: <1992Dec15.135809.5339@u.washington.edu> Date: 15 Dec 92 13:58:09 GMT Article-I.D.: u.1992Dec15.135809.5339 Sender: news@u.washington.edu (USENET News System) Organization: clearer than blir Lines: 28