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"Pat" <pclancy@sasktel.net> wrote in message
news:41646f40@newsgroups.borland.com...

> Hello, I am trying to write a small program and am trying to find
> a solution to keeping some information the end user would like to
> keep. I figure the best way to do this is either through the registry
> or an INI file.

Ok so far.

> I can get the drive set once using a drive combo box and the next
> time I restart the porgram I get the proper drive but it reverts back
> to "C:" on the next restart.

Please show your actual code.

> In the "on close" section I want to use
>
> WinIni->WriteString("Drive", "CDROM", DriveComboBox1->Drive);

That is fine.

> Then in the on create section

Do not use the OnCreate event.  It is a Delphi remnant that is unstable in
C++ as it can be triggered before the constructor, which is illegal in C++.
Use the actual constructor instead.

> I would like to call the last drive used with something like:
>      Edit1->Text = WinIni->ReadString("Drive", "CDROM",
> DriveComboBox1->Drive);

Try this instead:

    AnsiString drive = WinIni->ReadString("Drive", "CDROM", "C");
    if( drive.Length() == 0 )
        drive = "C";
   DriveComboBox1->Drive = drive[1];

> This works for the first  time I restart the program but on
> the next boot Edit1 returns to "C"

Since you did not show your actual code, particularly the section on how you
instantiate the TIniFile, I can only guess that the ini file is probably not
actually created or opened properly, thus ReadString() cannot find the value
and returns the default instead.

> It seems to me the I should be able to read this information from
> the same INI file

Correct.

> but when I try:
>      DriveComboBox1->Drive = WinIni->ReadString("Drive",
> "CDROM", DriveComboBox1->Drive);
>
> I get an error ( [C++ Error] Unit1.cpp(52): E2034 Cannot
> convert 'AnsiString' to 'char')

The Drive property expects a single character, not a string.  See the
example above.


Gambit