trackbar自定义控件

频率选择性衰落信道的建模与仿真，具体实施方法(Frequency selective fading channel modeling and simulation modi, concrete implementation methods)

C#在转换图像格式时设置JPEG压缩级别，运行程序在窗口上单击按钮后，会生成多个版本不同压缩级别的图片，图片大小字节都不一样，如下代码是实现本功能的核心代码： 　　Bitmap MyBitmap = new Bitmap(@"J001.jpg"); 　　ImageCodecInfo MyDecoder = null; 　　ImageCodecInfo[] MyDecoders = ImageCodecInfo.GetImageDecoders(); 　　foreach (ImageCodecInfo MyFormat in MyDecoders) 　　{ 　　 if (MyFormat.FormatID == ImageFormat.Jpeg.Guid) 　　 { 　　 MyDecoder = MyFormat; 　　 } 　　} 　　System.Drawing.Imaging.Encoder MyEncoder = 　　 System.Drawing.Imaging.Encoder.Quality; 　　EncoderParameters MyEncoderParameters = new EncoderParameters(1); 　　//以50中级压缩图像 　　EncoderParameter MyEncoderParameter = new EncoderParameter(MyEncoder, 50L); 　　MyEncoderParameters.Param[0] = MyEncoderParameter; 　　MyBitmap.Save("J50L.jpg", MyDecoder, MyEncoderParameters); 　　//以100高级压缩图像 　　MyEncoderParameter = new EncoderParameter(MyEncoder, 100L); 　　MyEncoderParameters.Param[0] = MyEncoderParameter; 　　MyBitmap.Save("J99L.jpg", MyDecoder, MyEncoderParameters); 　　//以0低级压缩图像 　　MyEncoderParameter = new Enc

si4745收音机C51程序，车载si4745收音模块单片机驱动可直接使用。(C51 Program for Radio Si4745)

通过STM32控制步进电机的历程。非常管用，速度可调

神经网络ANNIE最新C++源程序包,包括BP,LMS,RBF,SOM,ART等算法源程序(neural network ANNIE code package,include BP,LMS,RBF,SOM,ART,etc )

倍福CNC 界面using System;using System.Windows.Forms;namespace TcApplication{ static class Program { [System.Runtime.InteropServices.DllImport("User32.dll")] static extern IntPtr SetForegroundWindow(IntPtr hWnd); [System.Runtime.InteropServices.DllImport("User32.dll")] static extern IntPtr ShowWindow(IntPtr hWnd, int nCmdShow); public static MainApp mainApp; static FormSplash formSplash; static bool exceptionSignaled; static Timer timerSplashWait; const int SW_RESTORE = 9; #region Main Entry /// /// The main entry point for the application. /// [STAThread] static void Main() { //Application.EnableVisualStyles(); //Application.SetCompatibleTextRenderingDefault(false); Application.ThreadException = new System.Threading.ThreadExceptionEventHandler(Application_ThreadException); if (CheckActiveProcess() == true) { Application.Exit(); return; } ShowSplashScreen(); // BasicConfigurator.Configure(); log4net.Config.XmlConfigurator.Configure(new System.IO.FileInfo(Application.StartupPath "\System\log.xml")); // Einschalten internes Debugging der LOG Komponenete // log4net.Util.LogLog.InternalDebugging = true; MainApp.log.Info("Application started."); // set the NumberGroupSeparator for all forms System.Globalization.CultureInfo newCultureInfo = new System.Globalization.CultureInfo(System.Threading.Thread.CurrentThread.CurrentCulture.LCID); newCultureInfo.NumberFormat.NumberDecimalSeparator = "."; newCultureInfo.NumberFormat.NumberGroupSeparator = ","; newCultureInfo.TextInfo.ListSeparator = ";"; Application.CurrentCulture = newCultureInfo; // load the settings MainApp.appSettings = new Settings(); MainApp.appSettings.FileName = Application.StartupPath "\System\AppSet.xml"; MainApp.appSettings.ReadSettings(); mainApp = new MainApp(); Application.Run(mainApp); MainApp.log.Info("Application stopped."); MainApp.appSettings.WriteSettings(); } #endregion #region Public functions public static void ShowSplashScreen() { String[] arguments = Environment.GetCommandLineArgs(); for (int i = 1; i < arguments.Length; i ) { if (arguments[i].StartsWith("/NoSplash")) return; } if (formSplash == null) formSplash = new FormSplash(); if (timerSplashWait == null) { timerSplashWait = new Timer(); timerSplashWait.Tick = new EventHandler(timerSplashWait_Tick); } formSplash.Parameters("HMI " Application.ProductVersion, 325, 296, new System.Drawing.Font("Arial", 18F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0))), System.Drawing.Color.FromArgb(0, 104, 157), System.Drawing.Color.Black); formSplash.Show(); Application.DoEvents(); } static void timerSplashWait_Tick(object sender, EventArgs e) { timerSplashWait.Enabled = false; CloseSplashScreen(); } public static void CloseSplashScreen(int interval) { if (interval < 1) interval = 1; if (timerSplashWait != null) { timerSplashWait.Interval = interval; timerSplashWait.Enabled = true; } } public static void CloseSplashScreen() { if (formSplash != null) { formSplash.Close(); formSplash.Dispose(); formSplash = null; } } public static void BringSplashToFront() { if (formSplash != null) formSplash.BringToFront(); } public static void SplashTopMost(bool level) { if (formSplash != null) formSplash.TopMost = level; } #endregion #region Private functions private static void Application_ThreadException(object sender, System.Threading.ThreadExceptionEventArgs e) { if (!exceptionSignaled) { exceptionSignaled = true; MainApp.log.Fatal(sender, e.Exception); Beckhoff.App.ExceptionDialog exc = new Beckhoff.App.ExceptionDialog(); exc.SetText(Application.ProductName " has encountered a problem." "For further information take a look to the application event log!", e.Exception); exc.ShowDialog(); exceptionSignaled = !exc.ExceptionSignaledChecked; exc.Dispose(); exc = null; } } private static bool CheckActiveProcess() { try { int c = System.Diagnostics.Process.GetProcessesByName(System.Diagnostics.Process.GetCurrentProcess().ProcessName).Length; if (c > 0) { bool bFoundSame = false; foreach (System.Diagnostics.Process pr in System.Diagnostics.Process.GetProcessesByName(System.Diagnostics.Process.GetCurrentProcess().ProcessName)) { if (pr.MainModule.FileName == Application.ExecutablePath && pr.Id != System.Diagnostics.Process.GetCurrentProcess().Id) { SetForegroundWindow(pr.MainWindowHandle); // 9 = SW_RESTORE (winuser.h) ShowWindow(pr.MainWindowHandle, SW_RESTORE); bFoundSame = true; } } return bFoundSame; } else { return false; } } catch //(System.Security.SecurityException ex) { return false; } } #endregion }}

SAE J1939 协议源程序（C代码），有助于了解OBD的开发和熟悉！

Em algo for GMM, data mining unsupervised learning

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关于用单片机控制步进电机进行单双八拍转动