[D3d (C #)]-create a device

Source: Network

 

 

  //  -----------------------------------------------------------------------------
  //  File: createdevice. CS
  //  Create a device
  //  Desc: This is the first tutorial for using direct3d. In this tutorial, all
  // We are doing is creating a direct3d device and using it to clear
  //  Window.
  //  Note: This is the first teaching example of using d3d. In this example, we only need to create a d3d "device" and refresh the window.
  //  Copyright (c) Microsoft Corporation. All rights reserved.
  //  -----------------------------------------------------------------------------
  //  This project is C # ConsoleProgram  
 
  Using  System;
  Using  System. drawing;
  Using  System. Windows. forms;
  Using  Microsoft. DirectX;
  Using  Microsoft. DirectX. direct3d;


  Namespace  Devicetutorial
{
  Public    Class  Createdevice: Form
{
Device  =     Null  ;  //  Our drawing devices  
  
  Public  Createdevice ()
{
  This  . Clientsize  =    New  System. Drawing. Size (  640  ,  480  );  //  Set the initial value of the form.  
    This  . Text  =     "  D3d tutorial 01: createdevice  " ;  //  Set the Form title  
  }

  Public     Bool  Initializegraphics ()
{
  Try  
{
  //  Now let's set some options for d3d.  
  Presentparameters presentparams =     New  Presentparameters ();
Presentparams. receivwed  =     True  ;  //  Indicates the window mode when the program is running.  
  Presentparams. swapeffect  =  Swapeffect. Discard;  // Return or set swap area options  
  Device  =     New  Device (  0  , Devicetype. hardware,  This  , Createflags. softwarevertexprocessing, presentparams );  //  Create a device instance
  //  Function Description: New Device (physical device (0: default device), device type (hardware is selected here), create a form for the graphic device, create a type, and create an object) 
    Return     True  ;
}
  Catch  (Directxexception)  //  Catch DX exceptions  
  {
  Return     False  ;
}
}

 Private     Void  Render ()  //  Refresh Module  
  {
  If  (Device  =     Null  ){  Return  ;}

Device. Clear (clearflags. Target, color. Blue, 1.0f  ,  0  );  //  Fl the device window to blue
  //  Function Description: clear (the fl parameters here select the target, color, depth (which may be used as a template), and template (0: no template is used ))  
  
Device. beginscene ();  //  Start rendering the scene (because there is no scene, the rendering of the scene is directly ended if the sentence is empty)

  //  
  // You can render the scenario here.
  //
  
Device. endscene ();  //  End scene rendering  
  Device. Present ();
}

  Protected     Override     Void  Onpaint (system. Windows. Forms. painteventargs E)  //  Override onpaint Method 
  {
  This  . Render ();  //  Refresh cycle window  
  }

  Protected     Override     Void  Onkeypress (system. Windows. Forms. keypresseventargs E)  //  Override onkeypress Method 
  {
  If  ((  Int  )(  Byte  ) E. keychar  =  (  Int  ) System. Windows. Forms. Keys. Escape)
{
  This  . Close ();  //  Exit the program if you press ESC. 
  }
}

  ///     <Summary>  Main function of the program, entry point  </Summary>  
    Static     Void  Main ()
{
  //  Use the using statement to create an object and ensure that the object is destroyed.  
   Using  (Createdevice FRM  =     New  Createdevice ())
{
  If  (  !  FRM. initializegraphics ())  //  Initialization  
  {
MessageBox. Show (  " Cocould not initialize direct3d. This tutorial will exit.  "  );
  Return  ;
}

FRM. Show ();

  //  Message Loop  
    While  (FRM. Created)
{
FRM. Render ();
Application. doevents ();
}
}
}
}
}