C#

1. Google like a madman for "Direct3D 9.0 tutorials"
2. Download the DirectX SDK documentation
3. Look heavily into the following areas:
   - Microsoft.DirectX.Direct3D.VertexBuffer
   - Microsoft.DirectX.Direct3D.Device
   - Microsoft.DirectX.Direct3D.Texture
   - Microsoft.DirectX.Direct3D.Transforms
   - Vector3.Unproject and Vector3.Project

rtb2.SelectionLength = 0
rtb2.SelectionStart = rtb2.Text.Length()
rtb2.Focus()
rtb2.ScrollToCaret()

private const short SQL_HANDLE_ENV = 1;
private const short SQL_HANDLE_DBC = 2;
private const int SQL_ATTR_ODBC_VERSION = 200;
private const int SQL_OV_ODBC3 = 3;
private const short SQL_SUCCESS = 0;
private const short SQL_NEED_DATA = 99;
private const short DEFAULT_RESULT_SIZE = 1024;
private const string SQL_DRIVER_STR = "DRIVER=SQL SERVER";
[DllImport("odbc32.dll")]
private static extern short SQLAllocHandle(short hType, IntPtr inputHandle, out IntPtr outputHandle);
[DllImport("odbc32.dll")]
private static extern short SQLSetEnvAttr(IntPtr henv, int attribute, IntPtr valuePtr, int strLength);
[DllImport("odbc32.dll")]
private static extern short SQLFreeHandle(short hType, IntPtr handle); 
[DllImport("odbc32.dll",CharSet=CharSet.Ansi)]
private static extern short SQLBrowseConnect(IntPtr hconn, StringBuilder inString, 
	short inStringLength, StringBuilder outString, short outStringLength,
	out short outLengthNeeded);

static public string[] GetSQLServers()
{
	string[] retval = null;
	string txt = string.Empty;
	IntPtr henv = IntPtr.Zero;
	IntPtr hconn = IntPtr.Zero;
	StringBuilder inString = new StringBuilder(SQL_DRIVER_STR);
	StringBuilder outString = new StringBuilder(DEFAULT_RESULT_SIZE);
	short inStringLength = (short) inString.Length;
	short lenNeeded = 0;

	try
	{
		if (SQL_SUCCESS == SQLAllocHandle(SQL_HANDLE_ENV, henv, out henv))
		{
			if (SQL_SUCCESS == SQLSetEnvAttr(henv,SQL_ATTR_ODBC_VERSION,(IntPtr)SQL_OV_ODBC3,0))
			{
				if (SQL_SUCCESS == SQLAllocHandle(SQL_HANDLE_DBC, henv, out hconn))
				{
					if (SQL_NEED_DATA ==  SQLBrowseConnect(hconn, inString, inStringLength, outString, 
								DEFAULT_RESULT_SIZE, out lenNeeded))
					{
						if (DEFAULT_RESULT_SIZE < lenNeeded)
						{
							outString.Capacity = lenNeeded;
							if (SQL_NEED_DATA != SQLBrowseConnect(hconn, inString, inStringLength, outString, 
								lenNeeded,out lenNeeded))
							{
								throw new ApplicationException("Unabled to aquire SQL Servers from ODBC driver.");
							}	
						}
						txt = outString.ToString();
						int start = txt.IndexOf("{") + 1;
						int len = txt.IndexOf("}") - start;
						if ((start > 0) && (len > 0))
						{
							txt = txt.Substring(start,len);
						}
						else
						{
							txt = string.Empty;
						}
					}						
				}
			}
		}
	}
	catch (Exception)
	{
		//Throw away any error if we are not in debug mode
		txt = string.Empty;
	}
	finally
	{
		if (hconn != IntPtr.Zero)
		{
			SQLFreeHandle(SQL_HANDLE_DBC,hconn);
		}
		if (henv != IntPtr.Zero)
		{
			SQLFreeHandle(SQL_HANDLE_ENV,hconn);
		}
	}
	
	if (txt.Length > 0)
	{
		retval = txt.Split(",".ToCharArray());
	}

	return retval;
}

SQLDMO.Application app = new SQLDMO.ApplicationClass();
SQLDMO.NameList servers = app.ListAvailableSQLServers();
if (servers != null)
  foreach (string server in servers)
    Console.WriteLine(server);

"You can have everything in life you want if you will just help enough other people get what they want." --Zig Ziglar

The Second EuroCPian Event will be in Brussels on the 4th of September

Can't manage to P/Invoke that Win32 API in .NET? Why not do interop the wiki way!

My Blog

"You can have everything in life you want if you will just help enough other people get what they want." --Zig Ziglar

The Second EuroCPian Event will be in Brussels on the 4th of September

Can't manage to P/Invoke that Win32 API in .NET? Why not do interop the wiki way!

My Blog

abstract SchoolObject
+abstract Person
|+Student
|+Teacher
+abstract Item
|+Table
|+Chair
|+Classroom
|+Staircase

Private mCol As Collection

Public Function AddClassRoom(ByVal Name As String, ByVal MyCenter As Coord) As ClassRoom
Public Function AddStudent(ByVal FirstName As String, ByVal Lastname As String) As Student

ArrayList myCollection = new ArrayList();
// fill in the objects
[...].// enumerate the objects
foreach (object o in myCollection)
{
  if (o is Teacher)
  {
    Teacher t = o as Teacher;
    t.DoSomethingOnlyTeachersDo();
  }
  if (o is Chair)
  {
    Chair c = o as Chair;
    c.StandThere();
  }
}

public class objTeacher : obj

public class objStudent : obj

if (o is Teacher)
{
    Teacher t = o as Teacher;
    string test = t.TeacherName;
    t.DoSomethingOnlyTeachersDo();
}