view/TransparentizeWindow/Form1.cs

using System;
using System.Collections;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Diagnostics;
using System.Xml.Serialization;
using System.IO;

namespace TransparentizePutty
{
    public partial class Form1 : Form
    {
                private class ProcessInfo
                {
                        public bool transparent = false;
                        public IntPtr hWnd = IntPtr.Zero;
                        public string name;
                        public string title;
                        public bool exists = true;

                        public ProcessInfo(IntPtr hWnd, string name, string title) {
                                this.hWnd = hWnd;
                                this.name = name;
                                this.title = title;
                        }

                        public ProcessInfo(Process process) {
                                Update(process);
                        }

                        public void Update(Process process) {
                                this.hWnd = process.MainWindowHandle;
                                this.name = process.ProcessName;
                                this.title = process.MainWindowTitle;
                                this.exists = true;
                        }
                }

                public class ApplicationSetting
                {
                        [System.Xml.Serialization.XmlElement("alpha")]
                        public byte alphaValue = 210;
                        public bool puttysAreTransparent = false;
                        public bool notTransparentPuttySetting = false;
                        public string[] ngwords = new string[] {"sidebar", "Saezuri"};
                }

                private List<ProcessInfo> processList = new List<ProcessInfo>();
                private ApplicationSetting setting = new ApplicationSetting();
                private bool allowExit = false;

                private void SaveSetting() {
                        try {
                                XmlSerializer sirializer = new XmlSerializer(typeof(ApplicationSetting));
                                FileStream stream = new FileStream("TraPutty.xml", FileMode.Create);
                                sirializer.Serialize(stream, this.setting);
                                stream.Close();
                        }
                        catch { }
                }

                private void LoadSettings() {
                        try {
                                XmlSerializer serializer = new XmlSerializer(typeof(ApplicationSetting));
                                FileStream stream = new FileStream("TraPutty.xml", FileMode.Open);
                                this.setting = (ApplicationSetting)serializer.Deserialize(stream);
                        }
                        catch {
                                this.setting = new ApplicationSetting();
                        }
                }

                private void ResetProcessesInfo() {
                        for (int i = 0; i < processList.Count; i++) {
                                processList[i].exists = false;
                        }

                        Process[] processes = Process.GetProcesses();
                        foreach (Process process in processes) {
                                if (process.MainWindowHandle != IntPtr.Zero) {
                                        bool ng = false;
                                        foreach (string ngword in this.setting.ngwords) {
                                                if (process.ProcessName.Equals(ngword, StringComparison.CurrentCultureIgnoreCase)) ng = true;
                                        }
                                        if (!ng) {
                                                bool exists = false;
                                                for (int i = 0; i < processList.Count; i++) {
                                                        ProcessInfo processInfo = processList[i];
                                                        if (processInfo.hWnd == process.MainWindowHandle) {
                                                                int exStyle = Win32API.GetWindowLong(processInfo.hWnd, Win32API.GWL_EXSTYLE);
                                                                if ((exStyle & (int)Win32API.WS_EX.LAYERED) != 0) {
                                                                        byte alpha;
                                                                        Win32API.GetLayeredWindowAttributes(processInfo.hWnd, 0, out alpha, 0);
                                                                        processInfo.transparent = (alpha != 255) ? true : false;
                                                                }
                                                                processInfo.Update(process);
                                                                exists = true;
                                                                break;
                                                        }
                                                }
                                                if (!exists) {
                                                        ProcessInfo pi = new ProcessInfo(process);
                                                        this.processList.Add(pi);

                                                        if (this.setting.puttysAreTransparent) {
                                                                SetTransparentForPutty(pi, true);
                                                        }
                                                }
                                        }
                                }
                        }

                        processList.Sort(delegate(ProcessInfo x, ProcessInfo y) {
                                return x.name.CompareTo(y.name);
                        });

                        for (int i = 0; i < processList.Count; i++ ) {
                                if (!processList[i].exists) {
                                        processList.Remove(processList[i]);
                                }
                        }
                }

                private bool SetTransparent(IntPtr hWnd, bool transparent) {
                        if (transparent) {
                                int exStyle = Win32API.GetWindowLong(hWnd, Win32API.GWL_EXSTYLE);
                                Win32API.SetWindowLong(hWnd, Win32API.GWL_EXSTYLE, exStyle | (int)Win32API.WS_EX.LAYERED);

                                return Win32API.SetLayeredWindowAttributes(hWnd, 0, this.setting.alphaValue, Win32API.LWA_ALPHA);
                        }
                        else {
                                return Win32API.SetLayeredWindowAttributes(hWnd, 0, 255, Win32API.LWA_ALPHA);
                        }
                }

                private void SetTransparentForAllPutty() {
                        this.setting.puttysAreTransparent = !this.setting.puttysAreTransparent;
                        foreach (ProcessInfo process in processList) {
                                this.SetTransparentForPutty(process, this.setting.puttysAreTransparent);
                        }
                }

                private void SetTransparentForPutty(ProcessInfo process, bool transparent) {
                        if (process.name.Equals("putty", StringComparison.CurrentCultureIgnoreCase)) {
                                if (this.setting.notTransparentPuttySetting && process.title.Equals("PuTTY 設定"))
                                        transparent = false;
                                SetTransparent(process.hWnd, transparent);
                        }
                }

                public Form1() {
                        InitializeComponent();
                }

                private void Form1_Load(object sender, EventArgs e) {
                        LoadSettings();
                        ResetProcessesInfo();
                        timer.Enabled = true;
                }

                private void Form1_Shown(object sender, EventArgs e) {
                        this.Hide();
                }

                private void contextMenuStrip_Opening(object sender, CancelEventArgs e) {
                        this.Cursor = Cursors.WaitCursor;

                        ToolStripSeparator menuSep1 = new ToolStripSeparator();
                        ToolStripSeparator menuSep2 = new ToolStripSeparator();
                        ToolStripMenuItem menuOption = new ToolStripMenuItem("設定(&S)");
                        menuOption.Click += new EventHandler(this.menuItemOption_Click);
                        ToolStripMenuItem menuExit = new ToolStripMenuItem("終了(&X)");
                        menuExit.Click += new EventHandler(this.menuItemExit_Click);

                        ResetProcessesInfo();
                        contextMenuStrip.Items.Clear();
                        contextMenuStrip.ImageList = this.imageList;

                        foreach (ProcessInfo process in this.processList) {
                                if (process.exists) {
                                        ToolStripMenuItem item = new ToolStripMenuItem(process.name);
                                        item.ToolTipText = process.title;
                                        item.Tag = process;
                                        item.ImageIndex = (process.transparent) ? 1 : 0;
                                        item.Checked = process.transparent;
                                        item.Text += (process.transparent) ? " *" : "";
                                        item.Click += new EventHandler(this.menuItemProcess_Click);
                                        contextMenuStrip.Items.Add(item);
                                }
                        }

                        contextMenuStrip.Items.Add(menuSep1);
                        contextMenuStrip.Items.Add(menuOption);
                        contextMenuStrip.Items.Add(menuSep2);
                        contextMenuStrip.Items.Add(menuExit);

                        this.Cursor = Cursors.Default;
                }

                private void menuItemOption_Click(object sender, EventArgs e) {
                        this.numTransparent.Value = (int)this.setting.alphaValue;
                        this.chkNotTransparentPuttySetting.Checked = this.setting.notTransparentPuttySetting;
                        this.Enabled = true;
                        this.Show();
                        this.Activate();
                }

                private void menuItemExit_Click(object sender, EventArgs e) {
                        SaveSetting();
                        this.allowExit = true;
                        this.Close();
                }

                private void menuItemProcess_Click(object sender, EventArgs e) {
                        ToolStripMenuItem item = (ToolStripMenuItem)sender;
                        ProcessInfo processInfo = (ProcessInfo)item.Tag;

                        bool transparent = !processInfo.transparent;
                        if (SetTransparent(processInfo.hWnd, transparent)) {
                                processInfo.transparent = transparent;
                        }
                }

                private void buttonCancel_Click(object sender, EventArgs e) {
                        this.Hide();
                }

                private void buttonOk_Click(object sender, EventArgs e) {
                        this.setting.alphaValue = (byte)numTransparent.Value;
                        this.setting.notTransparentPuttySetting = chkNotTransparentPuttySetting.Checked;
                        this.Hide();
                }

                private void Form1_FormClosing(object sender, FormClosingEventArgs e) {
                        if (!this.allowExit) {
                                e.Cancel = true;
                                this.Hide();
                        }
                }

                private void notifyIcon_MouseDoubleClick(object sender, MouseEventArgs e) {
                        SetTransparentForAllPutty();
                }

                private void linkLabel_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e) {
                        Process.Start("http://www.yuuan.net/blog/");
                }

                private void timer_Tick(object sender, EventArgs e) {
                        ResetProcessesInfo();
                }
    }
}