Solved

How to create a .RC file(Resource scripts )

Posted on 2000-02-18
4
420 Views
Last Modified: 2010-08-05
can someone give me detailed instructions on how to do this.
0
Comment
Question by:jonlaukt
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 3
4 Comments
 
LVL 17

Accepted Solution

by:
inthe earned 30 total points
ID: 2536171
Hi
first make a demo project directory  for this then
go to hard drive and find a text file and re-name it test.txt or (make one)

open notepad and type the following line:

TEXT_DEMO  RCDATA C:\test.txt

save this as myres.rc  and put in in delphis bin dir.

TEXT_DEMO is the idendifier ,rcdata is just a datatype and c:\test.txt is the path to your txt file.
 
go to command prompt delphi\bin directory compile myres.rc with brcc32.exe.
if you havent used it before you just at the command prompt type:
brcc32 myres.rc
and you will get a compiled one called myres.res ,put myres.res in your projects directory so it can find it.

now you have your static text file inside a resource file.


in delphi:
create a new project and save it in your project dir that you made where the myres file resides.

drop a richedit on the form
and got to code and add in the private section the following line:
 procedure LoadTextFromResource;
then add in
{myres.rc} in the line below {$R *.DFM}

then add the following procedure:

procedure TForm1.LoadTextFromResource;
var
  ResID  : String;
  FndRes : HRSRC;
  LdRes  : THandle;
  Buffer : PChar;
  Stream : TMemoryStream;
begin
  ResID := 'TEXT_DEMO';
  //Locates the resource and returns a handle to it.
  // If the function fails it returns 0.
  FndRes := FindResource(HInstance,
                        MakeIntResource(ResID),
                        RT_RCDATA);
  if FndRes <> 0 then
  begin
    //Loads the resource into global memory and returns a handle to     //the global memory block containing the data associated with the     //resource. If this function fails it also returns 0.
    LdRes := LoadResource(Hinstance,
                          FndRes);
    if LdRes <> 0 then
    begin
      //If the loaded resource is locked, the return value is a
      // pointer to the first byte of the resource otherwise, it is       // NULL.
      Buffer := LockResource(LdRes);
      // To make this a valid PChar, you should add a null at the       // end of the buffer, but this demo works without error as far       // as I know.
      try
        Stream := TMemoryStream.Create;
        try
          Stream.WriteBuffer(Pointer(Buffer)^, Length(Buffer));
          //Important, must set the stream position to the first byte           //of data. Will not work without this.
          Stream.Position := 0;
          Form1.RichEdit1.Lines.LoadFromStream(Stream);
        finally
          Stream.Free;
        end;
      finally
        FreeResource(LdRes);
      end;
    end;
  end;
end;


now drop a button on the form and  make the buttons click event like:

procedure TForm1.Button1Click(Sender: TObject);
begin
LoadTextFromResource;
end;


now compile and run and when the button is clicked the richedit will be filled with your test file...

your complete unit will be like:

unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
  StdCtrls, ComCtrls;

type
  TForm1 = class(TForm)
    RichEdit1: TRichEdit;
    Button1: TButton;
    procedure Button1Click(Sender: TObject);
  private
    { Private declarations }
    procedure LoadTextFromResource;
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.DFM}
{$R Myres.RES}

procedure TForm1.LoadTextFromResource;
var
  ResID  : String;
  FndRes : HRSRC;
  LdRes  : THandle;
  Buffer : PChar;
  Stream : TMemoryStream;
begin
  ResID := 'TEXT_DEMO';
  //Locates the resource and returns a handle to it.
  // If the function fails it returns 0.
  FndRes := FindResource(HInstance,
                        MakeIntResource(ResID),
                        RT_RCDATA);
  if FndRes <> 0 then
  begin
    //Loads the resource into global memory and returns a handle to     //the global memory block containing the data associated with the     //resource. If this function fails it also returns 0.
    LdRes := LoadResource(Hinstance,
                          FndRes);
    if LdRes <> 0 then
    begin
      //If the loaded resource is locked, the return value is a
      // pointer to the first byte of the resource otherwise, it is       // NULL.
      Buffer := LockResource(LdRes);
      // To make this a valid PChar, you should add a null at the       // end of the buffer, but this demo works without error as far       // as I know.
      try
        Stream := TMemoryStream.Create;
        try
          Stream.WriteBuffer(Pointer(Buffer)^, Length(Buffer));
          //Important, must set the stream position to the first byte           //of data. Will not work without this.
          Stream.Position := 0;
          Form1.RichEdit1.Lines.LoadFromStream(Stream);
        finally
          Stream.Free;
        end;
      finally
        FreeResource(LdRes);
      end;
    end;
  end;
end;



procedure TForm1.Button1Click(Sender: TObject);
begin
LoadTextFromResource;
end;

end.


hope that a help ;-)

Regards Barry

ps
also see the project here:
http://www.bhnet.com.br/~simonet/howtoprojs.htm

about how to create resource only dlls..
0
 

Author Comment

by:jonlaukt
ID: 2536355
thanks for your time
0
 

Author Comment

by:jonlaukt
ID: 2537444
To inthe, yesterday I spent 2 hrs modifying the text file to .exe file, but I still got compiliing errors. iT keeps refering back to the example u have given me. To do it the right way, can u advice as to what codes to modify. thanks, u save my life.
0
 

Author Comment

by:jonlaukt
ID: 2537738
To inthe, yesterday I spent 2 hrs modifying the text file to .exe file, but I still got compiliing errors. iT keeps refering back to the example u have given me. To do it the right way, can u advice as to what codes to modify. thanks, u save my life.
0

Featured Post

Technology Partners: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

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

A lot of questions regard threads in Delphi.   One of the more specific questions is how to show progress of the thread.   Updating a progressbar from inside a thread is a mistake. A solution to this would be to send a synchronized message to the…
This article explains how to create forms/units independent of other forms/units object names in a delphi project. Have you ever created a form for user input in a Delphi project and then had the need to have that same form in a other Delphi proj…
There are cases when e.g. an IT administrator wants to have full access and view into selected mailboxes on Exchange server, directly from his own email account in Outlook or Outlook Web Access. This proves useful when for example administrator want…
Do you want to know how to make a graph with Microsoft Access? First, create a query with the data for the chart. Then make a blank form and add a chart control. This video also shows how to change what data is displayed on the graph as well as form…

687 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