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Unknown symbols in GUI app link
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LitusSaxonicum



Joined: 23 Aug 2005
Posts: 1619
Location: Yateley, Hants, UK

PostPosted: Tue Apr 18, 2017 10:13 am    Post subject: Reply with quote

Beat me to it, Simon.

Clearwin.enh is in the installation 'Docs' folder: the online version may be the latest one, and if you don't have the latest compiler release, then there may be a point of two of difference.

Eddie
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John-Silver



Joined: 30 Jul 2013
Posts: 503

PostPosted: Fri Apr 21, 2017 1:27 am    Post subject: Reply with quote

no I'm pretty sure that's not what's referred to .... the referneýce is here:-
http://silverfrost.com/ftn95-help/clearwinp/dbosfn/introduction.aspx

Clearwin+ User's Supplement

It's also in several other places
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LitusSaxonicum



Joined: 23 Aug 2005
Posts: 1619
Location: Yateley, Hants, UK

PostPosted: Fri Apr 21, 2017 9:34 am    Post subject: Reply with quote

John,

You are reading a bit of documentary archaeology! The Supplement is the Clearwin+ Fortran Edition manual. The latter evolved through several versions from the former. Simon's suggestion of looking in the .ENH file was for a source of additional info.

Eddie
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John-Silver



Joined: 30 Jul 2013
Posts: 503

PostPosted: Tue Apr 25, 2017 1:50 am    Post subject: Reply with quote

Update of the documentation from 'Clearwin+ Users Supplement' to 'Clearwin+ Fortran Edition manual.' everywhere in the on-line (and maybe other versions) manual(s) should be a piece of cake for Paul then. Smile
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DietmarSiepmann



Joined: 03 Jun 2013
Posts: 91

PostPosted: Tue Apr 25, 2017 11:40 am    Post subject: Reply with quote

Hello,

one more remark concerning the symbol

DRAW_TEXT@

for which the numbers of parameters changed from 4 to 5 (compiler WARNING - SUBROUTINE DRAW_TEXT@ has been called with too few arguments).

I do not know the interface for the "new" routine DRAW_TEXT@, however I have learnt that I could use DRAW_CHARACTERS@ instead from one of the pdf files mentioned above.

Maybe it is worthwhile knowing the interface of the "new" DRAW_TEXT@ , too.


Regards,
Dietmar
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PaulLaidler
Site Admin


Joined: 21 Feb 2005
Posts: 4814
Location: Salford, UK

PostPosted: Tue Apr 25, 2017 3:50 pm    Post subject: Reply with quote

Dietmar

I think that there are two things that need fixing here.

1) dbos.ins needs changing to

Code:
      C_EXTERNAL DRAW_TEXT@ "__win_draw_text"(INSTRING,REF,REF,REF)


2) __win_draw_text is not exported correctly from clearwin64.dll.

It should have four arguments. The recommended change is to use DRAW_CHARACHERS@ instead.

You could change dbos.ins but I think that DRAW_TEXT@ will still fail because of (2).
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John-Silver



Joined: 30 Jul 2013
Posts: 503

PostPosted: Tue Apr 25, 2017 7:35 pm    Post subject: Reply with quote

DRAW_CHARACTERS@ Smile
... unless it's for a new french syntax version of ftn95 that's 'dear' to the heart or 'expensive' ! lol Wink
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DietmarSiepmann



Joined: 03 Jun 2013
Posts: 91

PostPosted: Thu Apr 27, 2017 11:18 am    Post subject: Reply with quote

Yes,

I have substituted DRAW_TEXT@ by DRAW_CHARACTERS@ in my GUI app code and this worked fine Smile

For those who are interested:
in a remark which I made previously in this post I wondered that a small example containing symbol GET_WKEY1@ could be compiled/linked using ftn95/slink64, our big GUI example, however, left symbol GET_WKEY1@ unresolved.
Although meanwhile this problem is solved, I found that you use character " in C_EXTERNAL definitions of file dbos.ins (ftn95 Version 8.10). When I looked at file clearwin.ins of ftn95 Version 7.10 I saw that C_EXTERNAL definitions of file clearwin.ins used character ' instead. What was the reason for this?

Regards
Dietmar
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PaulLaidler
Site Admin


Joined: 21 Feb 2005
Posts: 4814
Location: Salford, UK

PostPosted: Thu Apr 27, 2017 12:41 pm    Post subject: Reply with quote

There is no reason for this. You can use either single or double quotes.
Perhaps clearwin.ins was written when FTN77 was still in use.
dbos.ins was written within the last few months and double quotes was just a random choice. Hopefully, if there are any FTN77 users still around then they won't be porting to 64 bits.
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LitusSaxonicum



Joined: 23 Aug 2005
Posts: 1619
Location: Yateley, Hants, UK

PostPosted: Thu Apr 27, 2017 3:19 pm    Post subject: Reply with quote

In real life, double quotes allow you to avoid confusion when using the apostrophe for the Saxon Genitive or word contractions without ambiguity.

In programming, being able to use single or double quotes enables use of the other in character strings , but degrees, minutes and seconds are still difficult, as in:

Code:
"░  '"//'  "'
(similar for feet and inches)

Still not simple, especially when reading it years after writing the code.

Using both types of quotes is one of the things a committed Fortran-77 user is most likely to pick up and adopt, along with inline comments.
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John-Silver



Joined: 30 Jul 2013
Posts: 503

PostPosted: Thu May 04, 2017 10:48 pm    Post subject: Reply with quote

a very astute angle on the subject from a saxon (as would be expected !) Wink

how would a 'double-singlequote' be formatted ?
"''"
or
"'","'"
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LitusSaxonicum



Joined: 23 Aug 2005
Posts: 1619
Location: Yateley, Hants, UK

PostPosted: Fri May 05, 2017 9:43 am    Post subject: Reply with quote

It depends if it is a character constant or in a format statement.

"'","'" will only work in a format statement, and would have to be "'"//"'" in a character - this would work in a format statement too.

I think that "''" would work anywhere, as it is the first character that must be matched to the end of the string.

The apostrophe is also a key part of the Saxon Genitive.

Can I have this month's award for pedantry please?

Eddie
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mecej4



Joined: 31 Oct 2006
Posts: 673

PostPosted: Fri May 05, 2017 1:27 pm    Post subject: Re: Reply with quote

LitusSaxonicum wrote:

The apostrophe is also a key part of the Saxon Genitive.

Can I have this month's award for pedantry please?
Eddie

A fitting reward would be a plaque, engraved with Latin text that is unblemished by punctuation, a la https://i.stack.imgur.com/lMmJi.jpg .
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