1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
| private static void SCREEN()
{
// 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.Format32bppRgb);
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("Screenshot.bmp", ImageFormat.Bmp);
// Capture done
captureDone = true;
screenResource.Dispose();
duplicatedOutput.ReleaseFrame();
}
catch (SharpDXException error)
{
if (error.ResultCode.Code != SharpDX.DXGI.ResultCode.WaitTimeout.Result.Code)
{
throw error;
}
}
}
factory.Dispose();
adapter.Dispose();
device.Dispose();
output.Dispose();
output1.Dispose();
screenTexture.Dispose();
duplicatedOutput.Dispose();
} |
