我一直在努力用DirectX截取屏幕截图,问题是,它正在工作,但似乎缺少一些颜色(例如缺少黑色轮廓),还有一些由DX渲染的东西没有&# 39; t show。
我上传了图片(图片应该呈现的方式和呈现的图片)以及代码,可能是什么问题?
问候
public class Screenshot
{
public static void TakeScreenshot(string name = null)
{
var t = new Thread((ThreadStart) delegate
{
// destination folder
var destinationFolder = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments, Environment.SpecialFolderOption.Create) + "\\My Software\\Screenshots";
if (!Directory.Exists(destinationFolder)) Directory.CreateDirectory(destinationFolder);
// file name
string filename = name;
if (string.IsNullOrEmpty(name))
filename = "image-" + (Directory.GetFiles(destinationFolder, "*.png").Count() + 1).ToString("000") + ".png";
// # of graphics card adapter
const int numAdapter = 0;
// # of output device (i.e. monitor)
const int numOutput = 0;
// Create DXGI Factory1
var factory = new Factory1();
var adapter = factory.GetAdapter1(numAdapter);
// Create device from Adapter
var device = new Device(adapter);
// Get DXGI.Output
var output = adapter.GetOutput(numOutput);
var output1 = output.QueryInterface<Output1>();
// Width/Height of desktop to capture
int width = ((SharpDX.Rectangle)output.Description.DesktopBounds).Width;
int height = ((SharpDX.Rectangle)output.Description.DesktopBounds).Height;
// Create Staging texture CPU-accessible
var textureDesc = new Texture2DDescription
{
CpuAccessFlags = CpuAccessFlags.Read,
BindFlags = BindFlags.None,
Format = Format.B8G8R8A8_UNorm,
Width = width,
Height = height,
OptionFlags = ResourceOptionFlags.None,
MipLevels = 1,
ArraySize = 1,
SampleDescription = { Count = 1, Quality = 0 },
Usage = ResourceUsage.Staging
};
var screenTexture = new Texture2D(device, textureDesc);
// Duplicate the output
var duplicatedOutput = output1.DuplicateOutput(device);
bool captureDone = false;
for (int i = 0; !captureDone; i++)
{
try
{
SharpDX.DXGI.Resource screenResource;
OutputDuplicateFrameInformation duplicateFrameInformation;
// Try to get duplicated frame within given time
duplicatedOutput.AcquireNextFrame(10000, out duplicateFrameInformation, out screenResource);
if (i > 0)
{
// copy resource into memory that can be accessed by the CPU
using (var screenTexture2D = screenResource.QueryInterface<Texture2D>())
device.ImmediateContext.CopyResource(screenTexture2D, screenTexture);
// Get the desktop capture texture
var mapSource = device.ImmediateContext.MapSubresource(screenTexture, 0, MapMode.Read, MapFlags.None);
// Create Drawing.Bitmap
var bitmap = new Bitmap(width, height, PixelFormat.Format32bppArgb);
var boundsRect = new System.Drawing.Rectangle(0, 0, width, height);
// Copy pixels from screen capture Texture to GDI bitmap
var mapDest = bitmap.LockBits(boundsRect, ImageLockMode.WriteOnly, bitmap.PixelFormat);
var sourcePtr = mapSource.DataPointer;
var destPtr = mapDest.Scan0;
for (int y = 0; y < height; y++)
{
// Copy a single line
Utilities.CopyMemory(destPtr, sourcePtr, width * 4);
// Advance pointers
sourcePtr = IntPtr.Add(sourcePtr, mapSource.RowPitch);
destPtr = IntPtr.Add(destPtr, mapDest.Stride);
}
// Release source and dest locks
bitmap.UnlockBits(mapDest);
device.ImmediateContext.UnmapSubresource(screenTexture, 0);
// Save the output
bitmap.Save(destinationFolder + Path.DirectorySeparatorChar + filename);
// Send Message
Main.Chat.AddMessage(null, "~b~Screenshot saved as " + filename);
// Capture done
captureDone = true;
}
screenResource.Dispose();
duplicatedOutput.ReleaseFrame();
}
catch (SharpDXException e)
{
if (e.ResultCode.Code != SharpDX.DXGI.ResultCode.WaitTimeout.Result.Code)
{
throw e;
}
}
}
});
t.IsBackground = true;
t.Start();
}
}