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Problems calling a Windows API

Posted on 1998-08-24
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Last Modified: 2010-04-04
Hi.... I'm trying to call a Windows API this way:

WritePrivateProfileString('Setup', 'Port', @S, 'Monitor.ini' );

where S is a string[1]. Obviously, this call is bad because it doesn't work. How can I do it to pass a string variable as parameter? If I use only S, compiler doesn't compile the code. Please Help!!!

Thanks in advance,
Jaime
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Question by:skel
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3 Comments
 
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ronit051397 earned 50 total points
ID: 1337606
You need to write:
WritePrivateProfileString('Setup', 'Port', pChar(S), 'Monitor.ini' );

See example on:
http://x12.dejanews.com/getdoc.xp?AN=322713398&CONTEXT=904027635.935591984&hitnum=14
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Author Comment

by:skel
ID: 1337607
I looked at the example and I realized that I could use TIniFile component to access the Ini File. I used:

var ArchIni : TIniFile;

and then

ArchIni.Create( 'Monitor.ini' );
ArchIni.WriteString( 'Setup', 'Port', S );

When I run this code, compiler sends the warning:
'Variable ArchIni might not have been initialized'
and when I close the program, I got an exception Error on the application.
How can I solve it?

Thanks again in advance
Jaime

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LVL 5

Expert Comment

by:ronit051397
ID: 1337608
ArchIni:=TiniFille.Create( 'Monitor.ini' );
ArchIni.WriteString( 'Setup', 'Port', S );
.

ArchIni.Free;
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