I trying to capture fingerprint via my C# code. I have referenced the secugen FDx Pro SDK for windows version 2.3.3.0 and have installed the drivers. Though I can not see the sgfplib.dll among the other dll files.
when I run the code trying to initialize the SGFingerPrintManager which uses sgfplib.dll, it complains that "sgfplib.dll can not be found" I have read the previous suggestion on this platform, but none solved the problems.
Please I appreciate in advance any suggestion to solve this problem sonnest.
Thanks in advance.
a) I have downloaded FDx Pro SDK for windows and the secugen drivers version 6.7 (64).
b) Also, I tried to copying the sgfplid.dll to the bin folder of my project but problem persists.
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using LuggageTrackingAndBillingSystem.models;
using SecuGen.FDxSDKPro.Windows;
namespace LuggageTrackingAndBillingSystem
{
public partial class TsetForSecugen : Form
{
Int32 image_width = 200;
Int32 image_height = 300;
Int32 image_dpi = 500;
public TsetForSecugen()
{
InitializeComponent();
InitializeDedive();
}
private SGFingerPrintManager m_FPM;
SGFPMDeviceName device_name = SGFPMDeviceName.DEV_FDU03;
private void InitializeDedive()
{
//Step 1
if (RuntimePolicyHelper.LegacyV2RuntimeEnabledSuccessfully)
{
// This will load a CLR 2 mixed mode assembly
m_FPM = new SGFingerPrintManager();
}
var err = m_FPM.InitEx(image_width, image_height, image_dpi);
}
private void DrawImage(Byte[] imgData, PictureBox picBox)
{
int colorval;
Bitmap bmp = new Bitmap(image_width, image_height);
picBox.Image = (Image)bmp;
for (int i = 0; i < bmp.Width; i++)
{
for (int j = 0; j < bmp.Height; j++)
{
colorval = (int)imgData[(j * image_width) + i];
bmp.SetPixel(i, j, Color.FromArgb(colorval, colorval, colorval));
}
}
picBox.Refresh();
}
private void GetImage()
{
//Capturing Finger Image Step 3
Byte[] fp_image = new Byte[image_width * image_height];
Int32 iError;
iError = m_FPM.GetImage(fp_image);
if (iError == (Int32)SGFPMError.ERROR_NONE)
{
DrawImage(fp_image, pictureBox1);
}
}
private void TsetForSecugen_Load(object sender, EventArgs e)
{
InitializeDedive();
GetDevieInfo();
}
private void GetDevieInfo()
{
#region Det Device Info step 2
//Get Device info
SGFPMDeviceInfoParam pInfo = new SGFPMDeviceInfoParam();
pInfo = new SGFPMDeviceInfoParam();
Int32 iError = m_FPM.GetDeviceInfo(pInfo);
if (iError == (Int32)SGFPMError.ERROR_NONE)
{
image_width = pInfo.ImageWidth;
image_height = pInfo.ImageHeight;
}
#endregion
}
private void button1_Click(object sender, EventArgs e)
{
GetImage();
}
}
}
Actual result:The expected result is to be able to capture fingerpring
Error Meaage: Header[FDx SDK Pro.NET] . Body[can't find sgfplib.dll]
I have solved the issue by gotten the executable file of FDx SDK Pro for windows and installed.
The problem is caused by the FDx SDK Pro For windows not being able to see the sgfplib.dll file which is automatically installed in windows/System32 and Windows/sysWOW64 directories during installation.
Thanks to all.
Related
I am currently elaborating which content I should use in the different version numbers, so I read What are differences between AssemblyVersion, AssemblyFileVersion and AssemblyInformationalVersion? and many other posts and articles.
Based on SemVer, I would increase the minor version number if I make backwards compatible changes. I understand and like this concept, and I want to use it.
This answer on the above linked post has good explanations on the different version numbers, but it also says that changing AssemblyVersion would require recompiling all dependent assemblies and executables.
I did a quick test:
testVersionLib.csproj
<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<TargetFramework>net5.0</TargetFramework>
<SignAssembly>true</SignAssembly>
<AssemblyOriginatorKeyFile>abc.snk</AssemblyOriginatorKeyFile>
<AssemblyVersion>3.4.5.6</AssemblyVersion>
</PropertyGroup>
</Project>
project testVersionLib: class1.cs
using System;
namespace testVersionLib
{
public class Class1
{
public string m_versionText = "3.4.5.6";
}
}
project testVersionExe: program.cs
using System;
using System.Diagnostics;
namespace testVersionExe
{
class Program
{
static void Main (string[] args)
{
Console.WriteLine ("Hello World!");
PrintFileVersion ();
PrintAssemblyFullName ();
}
private static void PrintAssemblyFullName ()
{
Console.WriteLine ("m_versionText: " + new testVersionLib.Class1 ().m_versionText);
Console.WriteLine ("DLL Assembly FullName: " + System.Reflection.Assembly.GetAssembly (typeof (testVersionLib.Class1)).FullName);
}
private static void PrintFileVersion ()
{
Console.WriteLine ("DLL FileVersion: " + FileVersionInfo.GetVersionInfo ("testVersionLib.dll").FileVersion);
}
}
}
and found that this may apply to .Net Framework, but it obviously does not apply to .NET 5 (and most likely .NET 6 and above as well, and maybe previous versions of .NET Core): I created a .NET 5 C# console app with AssemblyVersion 1.2.3.4 and strong name. This EXE references a DLL with AssemblyVersion 3.4.5.6 and strong name. The DLL compiled with different versions and is placed in the EXE's folder without compiling that one again.
The results:
The EXE fails to start if the DLL version is below 3.4.5.6 (e.g. 3.4.5.5, 3.4.4.6, 3.3.5.6), which makes sense.
The EXE successfully runs if the DLL version is equal to or above the version that was used to created the app (equal: 3.4.5.6; above: 3.4.5.7, 3.4.6.6, 3.5.5.6, 4.4.5.6).
This answer only says that
[...] .Net 5+ does not (by default) require that the assembly version used at runtime match the assembly version used at build time.
but it does not explain why and how.
How are assemblies located, resolved and loaded in .NET 5?
If someone wants to repeat my test with the compiled files, here's the 7z archive, encoded as PNG:
To decode the image, save it as PNG and use this code:
static void Main (string[] args)
{
string dataPath = #"c:\temp\net5ver.7z";
string imagePath = #"c:\temp\net5ver.7z.png";
string decodedDataPath = #"c:\temp\net5ver.out.7z";
int imageWidth = 1024;
Encode (dataPath, imagePath, imageWidth);
Decode (imagePath, decodedDataPath);
}
public static void Decode (string i_imagePath, string i_dataPath)
{
var bitmap = new Bitmap (i_imagePath);
var bitmapData = bitmap.LockBits (new Rectangle (Point.Empty, bitmap.Size), System.Drawing.Imaging.ImageLockMode.ReadOnly, bitmap.PixelFormat);
byte[] dataLengthBytes = new byte[4];
Marshal.Copy (bitmapData.Scan0, dataLengthBytes, 0, 4);
int dataLength = BitConverter.ToInt32 (dataLengthBytes);
int imageWidth = bitmap.Width;
int dataLines = (int)Math.Ceiling (dataLength / (double)imageWidth);
if (bitmap.Height != dataLines + 1)
throw new Exception ();
byte[] row = new byte[imageWidth];
List<byte> data = new();
for (int copyIndex = 0; copyIndex < dataLines; copyIndex++)
{
int rowStartIndex = imageWidth * (copyIndex + 1);
Marshal.Copy (IntPtr.Add (bitmapData.Scan0, rowStartIndex), row, 0, row.Length);
data.AddRange (row.Take (dataLength - data.Count));
}
bitmap.UnlockBits (bitmapData);
System.IO.File.WriteAllBytes (i_dataPath, data.ToArray ());
}
public static void Encode (string i_dataPath,
string i_imagePath,
int i_imageWidth)
{
byte[] data = System.IO.File.ReadAllBytes (i_dataPath);
int dataLines = (int)Math.Ceiling (data.Length / (double)i_imageWidth);
int imageHeight = dataLines + 1;
var bitmap = new Bitmap (i_imageWidth, imageHeight, System.Drawing.Imaging.PixelFormat.Format8bppIndexed);
var palette = bitmap.Palette;
for (int index = 0; index < byte.MaxValue; index++)
palette.Entries[index] = Color.FromArgb (index, index, index);
bitmap.Palette = palette;
var bitmapData = bitmap.LockBits (new Rectangle (Point.Empty, bitmap.Size), System.Drawing.Imaging.ImageLockMode.WriteOnly, bitmap.PixelFormat);
Marshal.Copy (BitConverter.GetBytes (data.Length), 0, bitmapData.Scan0, 4);
for (int copyIndex = 0; copyIndex < dataLines; copyIndex++)
{
int dataStartIndex = i_imageWidth * copyIndex;
int rowStartIndex = i_imageWidth * (copyIndex + 1);
byte[] row = data.Skip (dataStartIndex).Take (i_imageWidth).ToArray ();
Marshal.Copy (row, 0, IntPtr.Add (bitmapData.Scan0, rowStartIndex), row.Length);
}
bitmap.UnlockBits (bitmapData);
bitmap.Save (i_imagePath);
}
I've made a little app for printing Dymo labels and it works as intended, but when I run it on my Surface tablet it disables scalling af I've pushed the print button. If reopened the scalling is correct till print button is pushed again.
Can anybody tell me why?
The print button only runs my LabelPrinter class which has the following code:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Dymo;
using System.Windows.Forms;
namespace LabelPrinter
{
class LabelPrinter
{
private DymoAddInClass dymoAddIn;
private DymoLabelsClass dymoLabels;
private string labelPath, classRoom;
private int labelCount;
public LabelPrinter(string labelPath, string classRoom, int labelCount)
{
dymoAddIn = new DymoAddInClass();
dymoLabels = new DymoLabelsClass();
this.labelPath = labelPath;
this.classRoom = classRoom;
this.labelCount = labelCount;
}
public void printLabels()
{
dymoAddIn.SelectPrinter(dymoAddIn.GetDymoPrinters().Split('|')[0]);
if (dymoAddIn.Open(labelPath))
{
int firstNo = StaticMethods.getNextCodeEntryWithString(classRoom), lastNo = firstNo + labelCount;
dymoAddIn.StartPrintJob();
for (int i = firstNo; i < lastNo; i++)
{
foreach (string objName in dymoLabels.GetObjectNames(true).Split('|'))
{
dymoLabels.SetField(objName, classRoom + "_" + i);
}
dymoAddIn.Print(1, false);
}
dymoAddIn.EndPrintJob();
}
}
}
}
Using C# and Visual Studio 2010, how can I make a grayscaled emf from a colored one? Should I enumerate records and change color settings somehow?
As a result I want to have a new emf image.
Here is an open source emf read/write utility. I don't think it can be done with GDI+ and preserve the vector content. So this hopefully will help you, but I haven't remotely tested all possible emf cases.
https://wmf.codeplex.com/
this works for both wmf and emf formats. We can combine the Oxage.Wmf strategy with the strategy from the other post which essentially re-colors a pen or brush when it is created so that anything drawn with that pen or brush should be gray.
using Oxage.Wmf;
using Oxage.Wmf.Records;
using Oxage.Wmf.Objects;
using System;
using System.Collections.Generic;
using System.Drawing;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace MetafileTest
{
public class GrayMap
{
public void GrayFile(string sourceFile, string destFile){
WmfDocument wmf = new WmfDocument();
wmf.Load(sourceFile);
foreach (var record in wmf.Records)
{
if (record is WmfCreateBrushIndirectRecord)
{
var brush = record as WmfCreateBrushIndirectRecord;
brush.Color = Gray(brush.Color);
}
else if (record is WmfCreatePenIndirectRecord)
{
var pen = record as WmfCreatePenIndirectRecord;
pen.Color = Gray(pen.Color);
}
else if (record is WmfCreatePalette) {
var pal = record as WmfCreatePalette;
foreach (PaletteEntry entry in pal.Palette.PaletteEntries) {
Color test = Color.FromArgb(entry.Red, entry.Green, entry.Blue);
Color grayTest = Gray(test);
entry.Red = grayTest.R;
entry.Green = grayTest.G;
entry.Blue = grayTest.B;
}
}
}
wmf.Save(destFile);
}
public Color Gray(Color original) {
int r = (int)(original.R*0.2989);
int g = (int)(original.G*0.5870);
int b = (int)(original.B*0.1140);
Color result = Color.FromArgb(r, g, b);
return result;
}
}
}
This was tested with the following super simple case of filling a blue rectangle, so for at least the simple cases this will work. It may not be able to handle all cases, but in such a case you can probably extend the original source to suite your needs since it is open source.
private void button1_Click(object sender, EventArgs e)
{
var wmf = new WmfDocument();
wmf.Width = 1000;
wmf.Height = 1000;
wmf.Format.Unit = 288;
wmf.AddPolyFillMode(PolyFillMode.WINDING);
wmf.AddCreateBrushIndirect(Color.Blue, BrushStyle.BS_SOLID);
wmf.AddSelectObject(0);
wmf.AddCreatePenIndirect(Color.Black, PenStyle.PS_SOLID, 1);
wmf.AddSelectObject(1);
wmf.AddRectangle(100, 100, 800, 800);
wmf.AddDeleteObject(0);
wmf.AddDeleteObject(1);
wmf.Save("D:\\test.emf");
}
private void button2_Click(object sender, EventArgs e)
{
GrayMap map = new GrayMap();
map.GrayFile("D:\\test.emf", "D:\\test2.emf");
}
I try to get the high qulity antialiasing from a tuturial I found on the internet (http://www.rkoenig.eu/index.php?option=com_content&view=article&id=21:chapter-3-das-erste-echte-3d-objekt&catid=6:directx10-basics&Itemid=3). But did not achieve a very good solution.
I already set the multisampling to the maximum:
m_swapChainDesc.SampleDescription = new DXGI.SampleDescription(8,0);
To me it appears as the pixel size of the rendered image is larger than the actual pixel size of my screen.
Thank you very much in advance for your valuable inputs
here is the complete code:
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using SlimDX;
using DX10 = SlimDX.Direct3D10;
using DXGI = SlimDX.DXGI;
namespace TutorialSeries.DirectX10.Chapter3
{
public partial class MainWindow : Form
{
private DX10.Device m_device;
private DXGI.SwapChainDescription m_swapChainDesc;
private DXGI.SwapChain m_swapChain;
private DXGI.Factory m_factory;
private DX10.RenderTargetView m_renderTarget;
private bool m_initialized;
private SimpleBox m_simpleBox;
private Matrix m_viewMatrix;
private Matrix m_projMatrix;
private Matrix m_worldMatrix;
private Matrix m_viewProjMatrix;
public MainWindow()
{
InitializeComponent();
this.SetStyle(ControlStyles.ResizeRedraw, true);
this.SetStyle(ControlStyles.AllPaintingInWmPaint, true);
this.SetStyle(ControlStyles.Opaque, true);
}
/// <summary>
/// Initializes device and other resources needed for rendering. Returns true, if successful.
/// </summary>
private bool Initialize3D()
{
try
{
m_device = new DX10.Device(DX10.DriverType.Warp, DX10.DeviceCreationFlags.SingleThreaded);
m_factory = new DXGI.Factory();
m_swapChainDesc = new DXGI.SwapChainDescription();
m_swapChainDesc.OutputHandle = this.Handle;
m_swapChainDesc.IsWindowed = true;
m_swapChainDesc.BufferCount = 1;
m_swapChainDesc.Flags = DXGI.SwapChainFlags.AllowModeSwitch;
m_swapChainDesc.ModeDescription = new DXGI.ModeDescription(
this.Width,
this.Height,
new Rational(60, 1),
DXGI.Format.R8G8B8A8_UNorm);
m_swapChainDesc.SampleDescription = new DXGI.SampleDescription(8,0);
m_swapChainDesc.SwapEffect = DXGI.SwapEffect.Discard;
m_swapChainDesc.Usage = DXGI.Usage.RenderTargetOutput;
m_swapChain = new DXGI.SwapChain(m_factory, m_device, m_swapChainDesc);
DX10.Viewport viewPort = new DX10.Viewport();
viewPort.X = 0;
viewPort.Y = 0;
viewPort.Width = this.Width;
viewPort.Height = this.Height;
viewPort.MinZ = 0f;
viewPort.MaxZ = 1f;
//DX10.Texture2D backBuffer = m_swapChain.GetBuffer<DX10.Texture2D>(0);
DX10.Texture2D Texture = DX10.Texture2D.FromSwapChain<DX10.Texture2D>(m_swapChain,0);
//m_renderTarget = new DX10.RenderTargetView(m_device, backBuffer);
//DX10.RenderTargetViewDescription renderDesc = new DX10.RenderTargetViewDescription();
//renderDesc.FirstArraySlice = 0;
//renderDesc.MipSlice = 0;
m_renderTarget = new DX10.RenderTargetView(m_device, Texture);
Texture.Dispose();
DX10.RasterizerStateDescription rsd = new DX10.RasterizerStateDescription();
rsd.CullMode = DX10.CullMode.Back;
rsd.FillMode = DX10.FillMode.Wireframe;
rsd.IsMultisampleEnabled = true;
rsd.IsAntialiasedLineEnabled = false;
rsd.IsDepthClipEnabled = false;
rsd.IsScissorEnabled = false;
DX10.RasterizerState RasterStateWireFrame = DX10.RasterizerState.FromDescription(m_device,rsd);
DX10.BlendStateDescription blendDesc = new DX10.BlendStateDescription();
blendDesc.BlendOperation = DX10.BlendOperation.Add;
blendDesc.AlphaBlendOperation = DX10.BlendOperation.Add;
blendDesc.SourceAlphaBlend = DX10.BlendOption.Zero;
blendDesc.DestinationAlphaBlend = DX10.BlendOption.Zero;
blendDesc.SourceBlend = DX10.BlendOption.SourceColor;
blendDesc.DestinationBlend = DX10.BlendOption.Zero;
blendDesc.IsAlphaToCoverageEnabled = false;
blendDesc.SetWriteMask(0, DX10.ColorWriteMaskFlags.All);
blendDesc.SetBlendEnable(0, true);
DX10.BlendState m_blendState = DX10.BlendState.FromDescription(m_device, blendDesc);
m_device.Rasterizer.State = RasterStateWireFrame;
m_device.Rasterizer.SetViewports(viewPort);
m_device.OutputMerger.BlendState = m_blendState;
m_device.OutputMerger.SetTargets(m_renderTarget);
m_viewMatrix = Matrix.LookAtLH(
new Vector3(0f, 0f, -4f),
new Vector3(0f, 0f, 1f),
new Vector3(0f, 1f, 0f));
m_projMatrix = Matrix.PerspectiveFovLH(
(float)Math.PI * 0.5f,
this.Width / (float)this.Height,
0.1f, 100f);
m_viewProjMatrix = m_viewMatrix * m_projMatrix;
m_worldMatrix = Matrix.RotationYawPitchRoll(0.85f, 0.85f, 0f);
m_simpleBox = new SimpleBox();
m_simpleBox.LoadResources(m_device);
m_initialized = true;
}
catch (Exception ex)
{
MessageBox.Show("Error while initializing Direct3D10: \n" + ex.Message);
m_initialized = false;
}
return m_initialized;
}
/// <summary>
/// Rendering is done during the standard OnPaint event
/// </summary>
protected override void OnPaint(PaintEventArgs e)
{
base.OnPaint(e);
if (m_initialized)
{
m_device.ClearRenderTargetView(m_renderTarget, new Color4(Color.CornflowerBlue));
m_simpleBox.Render(m_device, m_worldMatrix, m_viewProjMatrix);
m_swapChain.Present(0, DXGI.PresentFlags.None);
}
}
/// <summary>
/// Initialize 3D-Graphics within OnLoad event
/// </summary>
protected override void OnLoad(EventArgs e)
{
base.OnLoad(e);
Initialize3D();
}
}
}
This is an old question but it's a shame it never got answered; I stumbled across it on Google so I figure answering it may help someone else in the future...
First of all, Pascal, you did NOT set MSAA to the maximum... You're using 8:0, which means 8 samples at a quality of 0 (zero)... definitely not the maximum. What the "max" is depends on the GPU installed on the local machine. So it varies from PC to PC. That's why a DirectX application needs to use DXGI to properly enumerate hardware devices and determine what settings are valid. This is no trivial topic and will require you to do some research and practice of your own. The DirectX SDK Documentation and samples/tutorials are a great starting place, and there's a lot of other materials to be found online. But on my machine, for instance, my GTX-580 GPU can support 8:16 MSAA (possibly higher, but haven't checked).
So you need to learn to use DXGI to enumerate your graphics cards and monitors and figure out what MSAA levels (and other graphics features/settings) it can support. That's the only way you'll ever figure out the "max" MSAA settings or the correct refresh rate of your monitor, for example. If you're clever you will write yourself a small library or component for your game engine that will enumerate hardware devices for you and figure out the optimal graphics settings so you won't have to re-do this over and over for future projects.
Regards,
--ATC--
Hi :) I'm writing a C# application and need to get the HWID code for the computer the code is running on. Since this is a console, i need to figure out a way to find the HWID for the CPU, motherboard and HDD, without using the the WMI. Since the system.management is not available on linux, i need it without using that. is it possible to find the HWID without the WMI? Or could i find a way to use the WMI for linux to find the HWID?
Is it possible in C# to do this? I would appreciate if anyone told me how, or pointed me in the right direction to get started. thank you all!
Try this link, not sure if it will work on linux though.
Updated
private string GetUID()
{
StringBuilder strB = new StringBuilder();
Guid G = new Guid(); HidD_GetHidGuid(ref G);
strB.Append(Convert.ToString(G));
IntPtr lHWInfoPtr = Marshal.AllocHGlobal(123); HWProfile lProfile = new HWProfile();
Marshal.StructureToPtr(lProfile, lHWInfoPtr, false);
if (GetCurrentHwProfile(lHWInfoPtr))
{
Marshal.PtrToStructure(lHWInfoPtr, lProfile);
strB.Append(lProfile.szHwProfileGuid.Trim(new char[] { '{', '}' }));
}
Marshal.FreeHGlobal(lHWInfoPtr);
SHA256CryptoServiceProvider SHA256 = new SHA256CryptoServiceProvider();
byte[] B = Encoding.Default.GetBytes(strB.ToString());
string outStr = BitConverter.ToString(SHA256.ComputeHash(B)).Repla ce("-", null);
for(int i = 0;i < 64; i++)
{
if (i % 16 == 0 && i != 0)
outStr = outStr.Insert(i, "-");
}
return (outStr);
}
[DllImport("hid.dll")]
private static extern void HidD_GetHidGuid(ref Guid GUID);
[DllImport("advapi32.dll", SetLastError = true)]
static extern bool GetCurrentHwProfile(IntPtr fProfile);
[StructLayout(LayoutKind.Sequential)]
class HWProfile
{
public Int32 dwDockInfo;
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 39)]
public string szHwProfileGuid;
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 80)]
public string szHwProfileName;
}