Re: [Dev-C++] Longhorn API

[Ioannis V. <no...@ho...>]

-------Original Message-------=0D
 =0D
From: Zodiaq=0D
Date: =D4=F1=DF=F4=E7, 4 =CC=DC=F1=F4=E9=EF=F2 2003 11:12:50 =F0=EC=0D
To: Dev...@li...=0D
Subject: Re: [Dev-C++] Longhorn API=0D
 =0D
Hello Ioannis and all Dev-C++ users,=0D
=0D
Tuesday, March 4, 2003, 3:03:42 AM, Ioannis wrote as follows:=0D
=0D
IV> "Longhorn=0D
IV> Next major OS version=0D
IV> Will contain Avalon the fully .NET Win32 API.=0D
IV> OS integration with .NET reaches its conclusion.=0D
IV> Everything that is currently in Windows will be rewritten as managed
code.=0D
IV> "=0D
=0D
So, does it mean that if I want to write some progs for new windows=0D
platform I have to (I must) learn .NET API??? Does .NET look at least=0D
something similar to Win32 API or rather like MFC?? Damn, these are=0D
baaaaaad news for me... but Longhorn going to be released at 2004 or=0D
2005?? So I have some more time... damn it!=0D
=0D
=0D
That's why i informed you. :) .NET consists of a virtual machine  (like
Java) and a complete API.=0D
=0D
=2ENET is an independent system, Windows and .NET will *coexist* for some=
 time
 The source code does not get compiled to binary code but to intermediate
bytecode which is compiled at run-time by the virtual machine (named CLR)=
=2E=0D
=0D
Because of this, all languages share the same API and code written in one
language can work with another. For example you can inherit a Visual Basi=
c 7
class to your C++ class, throw an exception in C++ and catch it in C# and=
 so
on. A programming language in .NET world is just a dialect, you can use
whichever you like (for example Oberon).=0D
=0D
=2ENET provides garbage collection so when you allocate memory on the fre=
e
store you do  not have to release it.=0D
=0D
Since .NET is a virtual machine you can think that you write programs for=
 it
and not your real architecture. That's why it has its own assembly langua=
ge,
the assembler MS provides  is called ILASM and its disassembler is called
ILDASM. Its assembly language has the notion of objects too!=0D
=0D
Reference: http://www.microsoft.com/mspress/books/5771.asp=0D
=0D
=0D
Since .NET was designed after Java it has advantages over it. Except of t=
he
fact that it is an open framework for any language while java's framework=
 is
only for java, it provides options on how your code gets compiled to nati=
ve
binary code  at run-time when it is executed. Line by line, function by
function or it gets all compiled to native binary code at the time of
installation (but i do not know how to configure it yet).=0D
=0D
The API is high level and *complete*. For example:=0D
=0D
=0D
(part of a real .NET program)=0D
=0D
#include "stdafx.h"=0D
=0D
#using <mscorlib.dll>=0D
#include <tchar.h>=0D
#using <System.dll>=0D
#using <system.windows.forms.dll>=0D
#using <system.drawing.dll>=0D
=0D
using namespace System;=0D
using namespace System::ComponentModel;=0D
using namespace System::Windows::Forms;=0D
using namespace System::Drawing;=0D
=0D
__gc class CppForm:public Form=0D
{=0D
 Button *btn1, *btn2;=0D
 Label *theLabel;=0D
 GroupBox *gbox;=0D
 RadioButton *rb1, *rb2, *rb3;=0D
 ComboBox *combo1;=0D
 TextBox *text1;=0D
 MainMenu *menuBar;=0D
 MenuItem *fileMenu, *item1, *item2;=0D
=0D
=0D
=0D
=0D
// ...=0D
=0D
=0D
=0D
=0D
void Setup_Buttons()=0D
 {=0D
  btn1=3Dnew Button;=0D
  btn1->Text=3D"OK";=0D
  =0D
  btn1->Size=3DSystem::Drawing::Size(70,25);=0D
  btn1->Location=3DPoint(130,225);=0D
  btn1->Click+=3Dnew EventHandler(this, &CppForm::Btn1_Clicked);=0D
  Controls->Add(btn1);=0D
=0D
  btn2=3Dnew Button;=0D
  btn2->Text=3D"Cancel";=0D
  =0D
  btn2->Size=3DSystem::Drawing::Size(70,25);=0D
  btn2->Location=3DPoint(210,225);=0D
  Controls->Add(btn2);=0D
  btn2->Click+=3Dnew EventHandler(this, &CppForm::cancel_clicked);=0D
  =0D
 }=0D
=0D
=0D
public:=0D
 CppForm()=0D
 {=0D
  Text=3D"Test Form";=0D
  FormBorderStyle=3DFormBorderStyle::Fixed3D;=0D
  Size=3DSystem::Drawing::Size(450,350);=0D
  Setup_Menu();=0D
  Setup_Buttons();=0D
  Setup_Label();=0D
  Setup_Group();=0D
  Setup_Combo();=0D
  Setup_Text();=0D
  =0D
 }=0D
=0D
};=0D
=0D
// This is the entry point for this application=0D
int __stdcall WinMain()=0D
{=0D
 Application::Run(new CppForm);=0D
=0D
 =0D
    =0D
    return 0;=0D
}=0D
=0D
=0D
=0D
=2ENET architecture (except of the API) is standardised by ECMA, together=
 with
its assembly language. You can download its standard for free and see its
assembly language at=0D
=0D
http://www.ecma-international.org/publications/standards/ECMA-335.HTM=0D
=0D
=0D
An example of its assembly language:=0D
=0D
assembly Test {}=0D
 =0D
=0D
=2Emethod static int32 AddTen(int32)=0D
{ =0D
  ldarg.0=0D
  ldc.i4 10=0D
  add=0D
  ret=0D
}=0D
 =0D
=0D
=2Eclass Test=0D
{ =0D
  .method static void main()=0D
  { =0D
   .entrypoint=0D
    ldc.i4.1=0D
    ldftn int32 AddTen(int32)=0D
    calli int32(int32)=0D
    pop=0D
    ret=0D
  }=0D
}=0D
=0D
=0D
=0D
Since this is the case, there are open source .NETs too. For example:=0D
=0D
http://www.go-mono.com/=0D
=0D
=0D
=0D
Ioannis Vranos=0D
=0D
* Programming pages: http://www.noicys.freeurl.com=0D
* Alternative URL: http://run.to/noicys=20