using?System;
using?System.Drawing;
using?System.Drawing.Imaging;

using?SharpDX;
using?SharpDX.Direct3D11;
using?SharpDX.DXGI;

using?Win32.BitBlt.Interop;
using?Win32.Shared;
using?Win32.Shared.Interfaces;

using?Device?=?SharpDX.Direct3D11.Device;
using?Rectangle?=?System.Drawing.Rectangle;

namespace?Win32.BitBlt
{
????internal?class?BitBlt?:?ICaptureMethod
????{
????????private?IntPtr?_hWnd;

????????public?void?Dispose（）
????????{
????????????//?Nothing?to?do
????????}

????????public?bool?IsCapturing?{?get;?private?set;?}

????????public?void?StartCapture（IntPtr?hWnd?Device?device?Factory?factory）
????????{
????????????var?picker?=?new?WindowPicker（）;
????????????_hWnd?=?picker.PickCaptureTarget（hWnd）;
????????????if?（_hWnd?==?IntPtr.Zero）
????????????????return;

????????????IsCapturing?=?true;
????????}

????????public?Texture2D?TryGetNextframeAsTexture2D（Device?device）
????????{
????????????if?（_hWnd?==?IntPtr.Zero）
????????????????return?null;

????????????var?hdcSrc?=?NativeMethods.GetDCEx（_hWnd?IntPtr.Zero?DeviceContextValues.Window?|?DeviceContextValues.Cache?|?DeviceContextValues.LockWindowUpdate）;
????????????var?hdcDest?=?NativeMethods.CreateCompatibleDC（hdcSrc）;
????????????NativeMethods.GetWindowRect（_hWnd?out?var?rect）;
????????????var?（width?height）?=?（rect.Right?-?rect.Left?rect.Bottom?-?rect.Top）;
????????????var?hBitmap?=?NativeMethods.CreateCompatibleBitmap（hdcSrc?width?height）;
????????????var?hOld?=?NativeMethods.Selectobject（hdcDest?hBitmap）;
????????????NativeMethods.BitBlt（hdcDest?0?0?width?height?hdcSrc?0?0?TernaryRasterOperations.SRCCOPY）;
????????????NativeMethods.Selectobject（hdcDest?hOld）;
????????????NativeMethods.DeleteDC（hdcDest）;
????????????NativeMethods.ReleaseDC（_hWnd?hdcSrc）;

????????????using?var?img?=?Image.FromHbitmap（hBitmap）;
????????????NativeMethods.Deleteobject（hBitmap）;

????????????using?var?bitmap?=?img.Clone（Rectangle.FromLTRB（0?0?width?height）?PixelFormat.Format32bppArgb）;
????????????var?bits?=?bitmap.LockBits（Rectangle.FromLTRB（0?0?width?height）?ImageLockMode.ReadOnly?img.PixelFormat）;

????????????var?data?=?new?DataBox?{?DataPointer?=?bits.Scan0?RowPitch?=?bits.Width?*?4?SlicePitch?=?bits.Height?};

????????????var?texture2dDescription?=?new?Texture2DDescription
????????????{
????????????????ArraySize?=?1
????????????????BindFlags?=?BindFlags.ShaderResource?|?BindFlags.RenderTarget
????????????????CpuAccessFlags?=?CpuAccessFlags.None
????????????????Format?=?Format.B8G8R8A8_UNorm
????????????????Height?=?height
????????????????MipLevels?=?1
????????????????SampleDescription?=?new?SampleDescription（1?0）
????????????????Usage?=?ResourceUsage.Default
????????????????Width?=?width
????????????};
????????????var?texture2d?=?new?Texture2D（device?texture2dDescription?new[]?{?data?}）;
????????????bitmap.UnlockBits（bits）;

????????????return?texture2d;
????????}

????????public?void?StopCapture（）
????????{
????????????_hWnd?=?IntPtr.Zero;
????????}
????}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件???????5653??2020-04-18?20:37??窗口截圖（可后臺截取DX窗口）\Source\CSharp窗口截圖.sln

????.......???????184??2019-11-18?20:04??窗口截圖（可后臺截取DX窗口）\Source\Win32.BitBlt\App.config

????.......??????3005??2019-11-18?20:04??窗口截圖（可后臺截取DX窗口）\Source\Win32.BitBlt\BitBlt.cs

????.......??????2872??2019-11-18?20:04??窗口截圖（可后臺截取DX窗口）\Source\Win32.BitBlt\Interop\DeviceContextValues.cs

????.......??????1460??2019-11-18?20:04??窗口截圖（可后臺截取DX窗口）\Source\Win32.BitBlt\Interop\NativeMethods.cs

????.......???????399??2019-11-18?20:04??窗口截圖（可后臺截取DX窗口）\Source\Win32.BitBlt\Interop\RECT.cs

????.......??????1711??2019-11-18?20:04??窗口截圖（可后臺截取DX窗口）\Source\Win32.BitBlt\Interop\TernaryRasterOperations.cs

?????文件???????9696??2020-04-18?20:36??窗口截圖（可后臺截取DX窗口）\Source\Win32.BitBlt\obj\Debug\Win32.BitBlt.csprojAssemblyReference.cache

????.......???????520??2019-11-18?20:04??窗口截圖（可后臺截取DX窗口）\Source\Win32.BitBlt\packages.config

????.......???????327??2019-11-18?20:04??窗口截圖（可后臺截取DX窗口）\Source\Win32.BitBlt\Program.cs

????.......???????457??2019-11-18?20:04??窗口截圖（可后臺截取DX窗口）\Source\Win32.BitBlt\Shader.fx

????.......??????4419??2019-11-18?20:04??窗口截圖（可后臺截取DX窗口）\Source\Win32.BitBlt\Win32.BitBlt.csproj

????.......???????184??2019-11-18?20:04??窗口截圖（可后臺截取DX窗口）\Source\Win32.DesktopDuplication\App.config

????.......??????2208??2019-11-18?20:04??窗口截圖（可后臺截取DX窗口）\Source\Win32.DesktopDuplication\DesktopDuplication.cs

?????文件???????2924??2020-04-18?20:36??窗口截圖（可后臺截取DX窗口）\Source\Win32.DesktopDuplication\obj\Debug\Win32.DesktopDuplication.csprojAssemblyReference.cache

????.......???????284??2019-11-18?20:04??窗口截圖（可后臺截取DX窗口）\Source\Win32.DesktopDuplication\packages.config

????.......???????347??2019-11-18?20:04??窗口截圖（可后臺截取DX窗口）\Source\Win32.DesktopDuplication\Program.cs

????.......???????457??2019-11-18?20:04??窗口截圖（可后臺截取DX窗口）\Source\Win32.DesktopDuplication\Shader.fx

????.......??????3242??2019-11-18?20:04??窗口截圖（可后臺截取DX窗口）\Source\Win32.DesktopDuplication\Win32.DesktopDuplication.csproj

????.......???????184??2019-11-18?20:04??窗口截圖（可后臺截取DX窗口）\Source\Win32.DwmSharedSurface\App.config

????.......??????2286??2019-11-18?20:04??窗口截圖（可后臺截取DX窗口）\Source\Win32.DwmSharedSurface\DwmSharedSurface.cs

????.......???????994??2019-11-18?20:04??窗口截圖（可后臺截取DX窗口）\Source\Win32.DwmSharedSurface\Interop\NativeMethods.cs

?????文件???????8486??2020-04-18?20:36??窗口截圖（可后臺截取DX窗口）\Source\Win32.DwmSharedSurface\obj\Debug\Win32.DwmSharedSurface.csprojAssemblyReference.cache

????.......???????520??2019-11-18?20:04??窗口截圖（可后臺截取DX窗口）\Source\Win32.DwmSharedSurface\packages.config

????.......???????347??2019-11-18?20:04??窗口截圖（可后臺截取DX窗口）\Source\Win32.DwmSharedSurface\Program.cs

????.......???????457??2019-11-18?20:04??窗口截圖（可后臺截取DX窗口）\Source\Win32.DwmSharedSurface\Shader.fx

????.......??????4273??2019-11-18?20:04??窗口截圖（可后臺截取DX窗口）\Source\Win32.DwmSharedSurface\Win32.DwmSharedSurface.csproj

????.......???????184??2019-11-18?20:04??窗口截圖（可后臺截取DX窗口）\Source\Win32.DwmThumbnail\App.config

????.......???????381??2019-11-18?20:04??窗口截圖（可后臺截取DX窗口）\Source\Win32.DwmThumbnail\App.xaml

????.......???????340??2019-11-18?20:04??窗口截圖（可后臺截取DX窗口）\Source\Win32.DwmThumbnail\App.xaml.cs

............此處省略96個文件信息