Solved

Loading Custom Resources

Posted on 1998-03-04
7
157 Views
Last Modified: 2010-04-06
I want to load custom resources into a TMemoryStream. I have made a *.RES file with custom data types (using Borland Workshop).  But my app keeps saying "Resource not found error". I am trying to load it with the command

FCompressedStream := TResourceStream.Create(HInstance, ResName, RT_RCDATA);

---------------------
Extra info
---------------------
I'm using D3 and Win95.

The custom resource happens to be a compressed bitmap. (Yes, I really really do want to compress it - it makes my EXE infinitly smaller and then I decompress it once only at run time).
0
Comment
Question by:WarrenYoungEdinburgh
  • 3
  • 2
  • 2
7 Comments
 
LVL 8

Expert Comment

by:ZifNab
ID: 1360075
Hi,

have you added the following in the compiler directive in the implementation
               section of your unit. {$R ResourceFilename} ?

Regards, zif.

0
 

Author Comment

by:WarrenYoungEdinburgh
ID: 1360076
Yes I have added that, with the .res on the end of the filename.
0
 

Author Comment

by:WarrenYoungEdinburgh
ID: 1360077
Judging from the size of the EXE file, it is clear that the resource file is being included in the EXE.
0
Courses: Start Training Online With Pros, Today

Brush up on the basics or master the advanced techniques required to earn essential industry certifications, with Courses. Enroll in a course and start learning today. Training topics range from Android App Dev to the Xen Virtualization Platform.

 
LVL 8

Expert Comment

by:ZifNab
ID: 1360078
strange,

What about ...., PCHAR(RT_RCDATA);
0
 
LVL 5

Expert Comment

by:JimBob091197
ID: 1360079
Try also:
  MyResStr := TResourceStream.Create(hInstance, PChar('#123'), PChar('MYSECTION'));
where MYSECTION is the resource group that you have put your resource 123 in.

I wrote the following function, and have used it several times to save a resource to disk:

function ExtractFileFromRes(hLib: Integer; const Filename, ResType, ResName: string): Boolean;
// E.g. ExtractFileFromRes(hInstance, 'C:\Test.exe', 'CUSTOM', '#123');
var
  rs: TResourceStream;
begin
  Result := True;
  try
    rs := TResourceStream.Create(hLib, PChar(ResName), PChar(ResType));
    try
      rs.SaveToFile(Filename);
    finally
      rs.Free;
    end;
  except
    Result := False;
  end;
end;

JB
0
 

Author Comment

by:WarrenYoungEdinburgh
ID: 1360080
Thank you Jim Bob. That solved it. The trick was how to utilise a custom resource type.

Thanks very much.
Warren.
0
 
LVL 5

Accepted Solution

by:
JimBob091197 earned 100 total points
ID: 1360081
Glad it worked.  I assume that I can answer the question then?

JB
0

Featured Post

Gigs: Get Your Project Delivered by an Expert

Select from freelancers specializing in everything from database administration to programming, who have proven themselves as experts in their field. Hire the best, collaborate easily, pay securely and get projects done right.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Objective: - This article will help user in how to convert their numeric value become words. How to use 1. You can copy this code in your Unit as function 2. than you can perform your function by type this code The Code   (CODE) The Im…
Introduction Raise your hands if you were as upset with FireMonkey as I was when I discovered that there was no TListview.  I use TListView in almost all of my applications I've written, and I was not going to compromise by resorting to TStringGrid…
This tutorial gives a high-level tour of the interface of Marketo (a marketing automation tool to help businesses track and engage prospective customers and drive them to purchase). You will see the main areas including Marketing Activities, Design …
The Email Laundry PDF encryption service allows companies to send confidential encrypted  emails to anybody. The PDF document can also contain attachments that are embedded in the encrypted PDF. The password is randomly generated by The Email Laundr…

776 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question