dpr Files

Delphi projects > dpr Files

Delphi project files with the extension "dpr" are listing all files that are used in a project and contain the code, which starts the application. Normally such files only contains code, which is generated by the Delphi IDE:Though Delphi2Cpp II converts such dpr files to C++ files, it is recommended not to use the converted file, but to let C++Builder create and maintain this file. What C++Builder exactly does isn't documented anywhere and it changes with different versions of C++Builder.

The default dpr file for a VCL forms application looks like:

program Project1;

uses

  Vcl.Forms,

  Unit1 in 'Unit1.pas' {Form1};

{$R *.res}

begin

  Application.Initialize;

  Application.MainFormOnTaskbar := True;

  Application.CreateForm(TForm1, Form1);

  Application.Run;

end.

The according file created by C++Builder XE10 Tokyo 2 looks like:

//---------------------------------------------------------------------------

#include <vcl.h>

#pragma hdrstop

#include <tchar.h>

//---------------------------------------------------------------------------

USEFORM("Unit1.cpp", Form1);

//---------------------------------------------------------------------------

int WINAPI _tWinMain(HINSTANCE, HINSTANCE, LPTSTR, int)

{

  try

  {

     Application->Initialize();

     Application->MainFormOnTaskBar = true;

     Application->CreateForm(__classid(TForm1), &Form1);

     Application->Run();

  }

  catch (Exception &exception)

  {

     Application->ShowException(&exception);

  }

  catch (...)

  {

     try

     {

       throw Exception("");

     }

     catch (Exception &exception)

     {

       Application->ShowException(&exception);

     }

  }

  return 0;

}

//---------------------------------------------------------------------------

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