SCOUG-Programming Mailing List Archives

Date:	Thu, 11 Mar 1999 20:26:43 PST
From:	Peter Skye <pskye@peterskye.com >
Reply-To:	scoug-programming@scoug.com
To:	scoug-programming@scoug.com
Subject:	SCOUG-Programming: Presentation Manager programming

Content Type: text/plain

Presentation Manager has a bunch of functions. One of them is:

BOOL WinOpenObject (
HOBJECT Object,
ULONG View,
BOOL OpenExisting )

which opens the workplace shell object specified by Object.

WinOpenObject returns a boolean value indicating success or failure.

If it fails, how do I figure out why?

For example, suppose I want to open a "view folder" of H:\STAROFC\ and I
don't know if one is already open. If I set OpenExisting to TRUE and
execute WinOpenObject, and it fails, my program assumes that there isn't
an existing "view folder" for H:\STAROFC\ and I execute again with
OpenExisting equal to false (to create a new "view folder"). If it
fails again, I don't know if H:\STAROFC\ doesn't exist, or WinOpenObject
doesn't like the trailing "\" I gave it, or my value for View is invalid
(OPEN_CONTENTS?), or I'm running on OS/2 2.1, or if there's some other
error. How do I figure out the error?

There's a WinGetLastError function but my documentation doesn't show
that it returns any info for WinOpenObject.

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