TStringList->LoadFromFile throws exception

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    Hi, I'm having a few problems with a program I'm developing, which I assume I can fix by playing with palettes. My main form contains a 256-colour TImage. I've overriden THintWindow, so the program has some nice tooltips that I paint manually. In 16-bit colour mode and up, the colours that I'm using in THintWindow are fine, but the problem is in 256-colour mode, the colours are dithered to the nearest colour in the group of 20 "System" colours that Windows uses. The colours I want to use in THintWindow are in the palette of the TImage on the main form, (and the TImage itself is displayed correctly). After experimenting with GetPalette()/PaletteChanged()/ RealizePalette()/etc I've got absolutely nowhere. I'm guessing what I need to do is set the palette for the custom THintWindow to the same palette used for the TImage in the main form. Is it possible? Am I way off the mark? Did I make any sense whatsoever? Thanks in advance. Any help will be greatly appreciated. Brad.
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    Oops! The subject is "Convert from Pascal". Mehrdad "M. Noroozi Eghbali" < XXXX@XXXXX.COM > wrote in message news: XXXX@XXXXX.COM ... > [This message is continue of the previous (Some messages belower)] > > Thank you all, but the problem is still not resolved. Each of the ways you > suggested encountered a linker or compiler error. It is better to me to > explain my problem. you may have a better solution for it. I working on a > multilingual application and I use MS_Access database for it (Provider: > Microsoft.Jet.OLEDB.4.0). Unfortunately I could not obtain Unicode data > correctly from MEMO fields of the database. At that time I used this > command: > "TntEdit2->Text = ADODataSet1->FieldByName("USE")->Value; //TntEdit2 is a > Unicode component". > This command return the MS-Access MEMO fields value in ASCII format. > I asked this in SQL newsgroup (The message is still there) and Viatcheslav > V. Vassiliev (Thank to him) said that I have to use Recordset and sent that > Pascal code to me. > > Have you any other solution? Please don't hesitate to help me. It is about > two weeks I worked on this problem. It made me tired. > > Thank you again, > Mehrdad > > >

TStringList->LoadFromFile throws exception

Postby mataus » Tue, 17 Jun 2008 08:23:31 GMT

Hello all.

I have problem with TStringList->LoadFromFile().  I have to make a program 
that shows information from text log file.  The file is always opened by a 
second program that keeps writtin .

When i call TStringList->LoadFromFile() i get exception "Cannot open file 
C:\Program Files\Company\event log.txt".  I think this is becuase log file 
is openned, by second program.  But notepad can open the file.

Can anyone help me?

matus 



Re: TStringList->LoadFromFile throws exception

Postby Remy Lebeau (TeamB) » Wed, 18 Jun 2008 02:08:38 GMT







TStrings::LoadFromFile() attempts to open the file with fmShareDenyWrite 
sharing rights specified.  Since your other app already has the file opened 
for writing, such access will always fail while the other app is using the 
file.  To get around it, you will have to use LoadFromStream() instead. 
That way, you can instantiate your own TFileStream with less restrictive 
sharing rights specified, ie:

    TFileStream *Stream = new TFileStream(FileName, fmOpenRead | 
fmShareDenyNone);
    try
    {
        Strings->LoadFromStream(Stream);
    }
    __finally
    {
        delete Stream;
    }


Gambit 



Re: TStringList->LoadFromFile throws exception

Postby Mark Jacobs » Wed, 18 Jun 2008 22:52:34 GMT





That is a lovely example. Thanks Remy.
-- 
Mark Jacobs
 http://www.**--****.com/  



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 with (Control as TListBox).Canvas do
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5.TSTringList LoadFromFile

"Chad Eddy" < XXXX@XXXXX.COM > wrote in message
news:3f15b185$ XXXX@XXXXX.COM ...
> I am using a TStringList to load files and do some file
> I/O on them.  This works with most files, but not with
> the .doc and .chm's that I try.

Those are not plain-text formats.  Well, .doc may be, but only if it is
encoded in RTF formatting.

> After the load from file, I have a count of 1 line, which
> has a small amount of charachters.

Probably because those formats have binary data in them that is preventing
LoadFromFile() from parsing the entire file.  LoadFromFile() only works
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> Is there something I have to do different for some files?

Yes - don't use TStringList for what you are trying to do.  Access the file
directly.


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