/// <summary>
/// Capture a region of the screen using Direct3D
/// </summary>
/// <param name="handle">The handle of a window</param>
/// <param name="region">The region to capture (in screen coordinates)</param>
/// <returns>A bitmap containing the captured region, this should be disposed of appropriately when finished with it</returns>
public static Bitmap CaptureRegionDirect3D(IntPtr handle, Rectangle region)
{
IntPtr hWnd = handle;
Bitmap bitmap = null;
// We are only supporting the primary display adapter for Direct3D mode
SlimDX.Direct3D9.AdapterInformation adapterInfo = _direct3D9.Adapters.DefaultAdapter;
SlimDX.Direct3D9.Device device;
#region Get Direct3D Device
// Retrieve the existing Direct3D device if we already created one for the given handle
if (_direct3DDeviceCache.ContainsKey(hWnd))
{
device = _direct3DDeviceCache[hWnd];
}
// We need to create a new device
else
{
// Setup the device creation parameters
SlimDX.Direct3D9.PresentParameters parameters = new SlimDX.Direct3D9.PresentParameters();
parameters.BackBufferFormat = adapterInfo.CurrentDisplayMode.Format;
Rectangle clientRect = NativeMethods.GetAbsoluteClientRect(hWnd);
parameters.BackBufferHeight = clientRect.Height;
parameters.BackBufferWidth = clientRect.Width;
parameters.Multisample = SlimDX.Direct3D9.MultisampleType.None;
parameters.SwapEffect = SlimDX.Direct3D9.SwapEffect.Discard;
parameters.DeviceWindowHandle = hWnd;
parameters.PresentationInterval = SlimDX.Direct3D9.PresentInterval.Default;
parameters.FullScreenRefreshRateInHertz = 0;
// Create the Direct3D device
device = new SlimDX.Direct3D9.Device(_direct3D9, adapterInfo.Adapter, SlimDX.Direct3D9.DeviceType.Hardware, hWnd, SlimDX.Direct3D9.CreateFlags.SoftwareVertexProcessing, parameters);
_direct3DDeviceCache.Add(hWnd, device);
}
#endregion
// Capture the screen and copy the region into a Bitmap
using (
SlimDX.Direct3D9.Surface surface = SlimDX.Direct3D9.Surface.CreateOffscreenPlain(device, adapterInfo.CurrentDisplayMode.Width, adapterInfo.CurrentDisplayMode.Height, SlimDX.Direct3D9.Format.A8R8G8B8,
SlimDX.Direct3D9.Pool.SystemMemory))
{
device.GetFrontBufferData(0, surface);
// Update: thanks digitalutopia1 for pointing out that SlimDX have fixed a bug
// where they previously expected a RECT type structure for their Rectangle
bitmap = new Bitmap(SlimDX.Direct3D9.Surface.ToStream(surface, SlimDX.Direct3D9.ImageFileFormat.Bmp, new Rectangle(region.Left, region.Top, region.Width, region.Height)));
// Previous SlimDX bug workaround: new Rectangle(region.Left, region.Top, region.Right, region.Bottom)));
}
return(bitmap);
}
public Direct3D9Graphics(System.Windows.Forms.Control control)
{
c = control;
d3d = new SlimDX.Direct3D9.Direct3D();
SlimDX.Direct3D9.PresentParameters pp = new SlimDX.Direct3D9.PresentParameters();
pp.SwapEffect = SlimDX.Direct3D9.SwapEffect.Discard;
pp.DeviceWindowHandle = control.Handle;
pp.Windowed = true;
pp.BackBufferWidth = control.Width;
pp.BackBufferHeight = control.Height;
pp.BackBufferFormat = SlimDX.Direct3D9.Format.A8R8G8B8;
device = new SlimDX.Direct3D9.Device(
d3d,
0,
SlimDX.Direct3D9.DeviceType.Hardware,
control.Handle,
SlimDX.Direct3D9.CreateFlags.HardwareVertexProcessing,
pp);
line = new SlimDX.Direct3D9.Line(device);
fCurrent = new System.Drawing.Font("ARIAL", 10);
font = new SlimDX.Direct3D9.Font(device, fCurrent);
transform = new TransformationMatrix();
}
/// <summary>
/// Capture a region of the screen using Direct3D
/// </summary>
/// <param name="handle">The handle of a window</param>
/// <param name="region">The region to capture (in screen coordinates)</param>
/// <returns>A bitmap containing the captured region, this should be disposed of appropriately when finished with it</returns>
public static Bitmap CaptureRegionDirect3D(IntPtr handle, Rectangle region)
{
IntPtr hWnd = handle;
Bitmap bitmap = null;
// We are only supporting the primary display adapter for Direct3D mode
SlimDX.Direct3D9.AdapterInformation adapterInfo = _direct3D9.Adapters.DefaultAdapter;
SlimDX.Direct3D9.Device device;
#region Get Direct3D Device
// Retrieve the existing Direct3D device if we already created one for the given handle
if (_direct3DDeviceCache.ContainsKey (hWnd))
{
device = _direct3DDeviceCache [hWnd];
}
// We need to create a new device
else
{
// Setup the device creation parameters
SlimDX.Direct3D9.PresentParameters parameters = new SlimDX.Direct3D9.PresentParameters ();
parameters.BackBufferFormat = adapterInfo.CurrentDisplayMode.Format;
Rectangle clientRect = NativeMethods.GetAbsoluteClientRect (hWnd);
parameters.BackBufferHeight = clientRect.Height;
parameters.BackBufferWidth = clientRect.Width;
parameters.Multisample = SlimDX.Direct3D9.MultisampleType.None;
parameters.SwapEffect = SlimDX.Direct3D9.SwapEffect.Discard;
parameters.DeviceWindowHandle = hWnd;
parameters.PresentationInterval = SlimDX.Direct3D9.PresentInterval.Default;
parameters.FullScreenRefreshRateInHertz = 0;
// Create the Direct3D device
device = new SlimDX.Direct3D9.Device (_direct3D9, adapterInfo.Adapter, SlimDX.Direct3D9.DeviceType.Hardware, hWnd, SlimDX.Direct3D9.CreateFlags.SoftwareVertexProcessing, parameters);
_direct3DDeviceCache.Add (hWnd, device);
}
#endregion
// Capture the screen and copy the region into a Bitmap
using (SlimDX.Direct3D9.Surface surface = SlimDX.Direct3D9.Surface.CreateOffscreenPlain (device, adapterInfo.CurrentDisplayMode.Width, adapterInfo.CurrentDisplayMode.Height, SlimDX.Direct3D9.Format.A8R8G8B8, SlimDX.Direct3D9.Pool.SystemMemory))
{
device.GetFrontBufferData (0, surface);
// Update: thanks digitalutopia1 for pointing out that SlimDX have fixed a bug
// where they previously expected a RECT type structure for their Rectangle
//Rectangle r = new Rectangle (region.Left, region.Top, region.Width, region.Height);
bitmap = new Bitmap (SlimDX.Direct3D9.Surface.ToStream (surface, SlimDX.Direct3D9.ImageFileFormat.Bmp));
// Previous SlimDX bug workaround: new Rectangle(region.Left, region.Top, region.Right, region.Bottom)));
}
return bitmap;
}
