using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Security.Permissions;
using System.Runtime.InteropServices;
using System.Threading;
using Microsoft.DirectX;
using Microsoft.DirectX.Direct3D;
namespace DX3D_First
{
public partial class frmOverlay : Form
{
#region DLL-IMPORT
internal struct Margins
{
public int Left, Right, Top, Bottom;
}
[DllImport( "user32.dll", SetLastError = true )]
public static extern UInt32 GetWindowLong( IntPtr hWnd, int nIndex );
[DllImport( "user32.dll" )]
static extern int SetWindowLong( IntPtr hWnd, int nIndex, IntPtr dwNewLong );
[DllImport( "user32.dll" )]
static extern bool SetLayeredWindowAttributes( IntPtr hwnd, uint crKey, byte bAlpha, uint dwFlags );
[DllImport( "dwmapi.dll" )]
static extern void DwmExtendFrameIntoClientArea( IntPtr hWnd, ref Margins pMargins );
public const int GWL_EXSTYLE = -20;
public const int WS_EX_LAYERED = 0x80000;
public const int WS_EX_TRANSPARENT = 0x20;
public const int LWA_ALPHA = 0x2;
public const int LWA_COLORKEY = 0x1;
#endregion
Device device = null;
Microsoft.DirectX.Direct3D.Font dxText;
Microsoft.DirectX.Direct3D.Line dxLine;
Margins marg;
bool bStopThread = false;
protected override CreateParams CreateParams
{
get
{
new SecurityPermission( SecurityPermissionFlag.UnmanagedCode ).Demand();
CreateParams CP = base.CreateParams;
CP.ExStyle = CP.ExStyle | 0x00000020;
return CP;
}
}
public frmOverlay()
{
InitializeComponent();
Gfx();
Thread dx = new Thread( new ThreadStart( dxThread ) );
dx.IsBackground = true;
dx.Start();
}
protected override void OnPaint( PaintEventArgs e )
{
marg.Left = 0;
marg.Top = 0;
marg.Right = this.Width;
marg.Bottom = this.Height;
DwmExtendFrameIntoClientArea( this.Handle, ref marg );
}
public bool Gfx()
{
try
{
SetWindowLong( this.Handle, GWL_EXSTYLE, ( IntPtr )( GetWindowLong( this.Handle, GWL_EXSTYLE ) | WS_EX_LAYERED | WS_EX_TRANSPARENT ) );
SetLayeredWindowAttributes( this.Handle, 0, 255, LWA_ALPHA );
PresentParameters pp = new PresentParameters();
pp.Windowed = true;
pp.SwapEffect = SwapEffect.Discard;
pp.BackBufferFormat = Format.A8B8G8R8;
device = new Device( 0, DeviceType.Hardware, this, CreateFlags.HardwareVertexProcessing, pp );
dxLine = new Microsoft.DirectX.Direct3D.Line( device );
dxText = new Microsoft.DirectX.Direct3D.Font( device, new System.Drawing.Font( "Arial", 12 ) );
return true;
}
catch (DirectXException)
{
return false;
}
}
public void DrawRect( int _X, int _Y, int _Width, int _Height, Color _Color )
{
Vector2[] Lines = new Vector2[ 5 ];
Lines[ 0 ].X = _X;
Lines[ 0 ].Y = _Y;
Lines[ 1 ].X = _X + _Width;
Lines[ 1 ].Y = _Y;
Lines[ 2 ].X = _X + _Width;
Lines[ 2 ].Y = _Y + _Height;
Lines[ 3 ].X = _X;
Lines[ 3 ].Y = _Y + _Height;
Lines[ 4 ].X = _X;
Lines[ 4 ].Y = _Y;
dxLine.Draw( Lines, _Color );
}
public void dxThread()
{
while(!bStopThread)
{
if( device == null ) return;
device.Clear( ClearFlags.Target, Color.FromArgb( 0, 0, 0, 0 ), 1.0f, 0 );
device.RenderState.ZBufferEnable = false;
device.RenderState.Lighting = false;
device.RenderState.CullMode = Cull.None;
device.Transform.Projection = Matrix.OrthoOffCenterLH( 0, this.Width, this.Height, 0, 0, 1 );
device.BeginScene();
// Rendering
DrawRect( 10, 20, 100, 150, Color.Blue );
dxText.DrawText( null, "Hello World!", 100, 100, Color.Red );
device.EndScene();
device.Present();
Application.DoEvents();
}
device.Dispose();
Application.Exit();
}
public void FillRect( float x, float y, float w, float h, int r, int g, int b )
{
CustomVertex.TransformedColored[] verts = new CustomVertex.TransformedColored[ 4 ];
verts[ 0 ].Position = new Vector4( x, y + h, 0, 0.5f );
verts[ 1 ].Position = new Vector4( x, y, 0, 0.5f );
verts[ 2 ].Position = new Vector4( x + w, y + h, 0, 0.5f );
verts[ 3 ].Position = new Vector4( x + w, y, 0, 0.5f );
//or make it with for(int i = 0; i < 4; i++) to write less code
verts[ 0 ].Color = System.Drawing.Color.FromArgb( r, g, b ).ToArgb();
verts[ 1 ].Color = System.Drawing.Color.FromArgb( r, g, b ).ToArgb();
verts[ 2 ].Color = System.Drawing.Color.FromArgb( r, g, b ).ToArgb();
verts[ 3 ].Color = System.Drawing.Color.FromArgb( r, g, b ).ToArgb();
device.VertexFormat = CustomVertex.TransformedColored.Format;
device.DrawUserPrimitives( PrimitiveType.TriangleStrip, 2, verts );
}
public void DrawRectangle( float x, float y, float w, float h, Color color )
{
float thickness = ( w / 25 );
//Vertical bar 1
FillRect( x - ( w / 2 ), y - ( h / 2 ), thickness/*just to keep our width consistent*/, h, color.R, color.G, color.B );
////Horiz 1
FillRect( x - ( w / 2 ), y - ( h / 2 ), w, thickness, color.R, color.G, color.B );
////Horizontal bar 2, -50 because we want the exact center of the crosshair to be
////at our X,Y coords and not the far left on crosshair on them
FillRect( x - ( w / 2 ), y + ( h / 2 ), w, thickness, color.R, color.G, color.B );
////Vertical bar 2
FillRect( x + ( w / 2 ), y - ( h / 2 ), thickness, h, color.R, color.G, color.B );
}
}
}
