这里用了ExtractIconEx函数来提取进程的图标
在Process类中添加几个函数：
public string getFullPath() //获得进程文件的路径 { StringBuilder s = new StringBuilder(); s.Capacity=100; Process.GetModuleFileName(this.ProcessId, s, s.Capacity); string path = Path.GetFullPath(s.ToString()); return path; } public Icon GetIconFromExe() { IntPtr hLargeIcon = IntPtr.Zero; IntPtr hSmallIcon = IntPtr.Zero; string path = this.getFullPath(); try { ExtractIconEx(path, 0, ref hLargeIcon, ref hSmallIcon, 1); } catch (Exception ex) { throw new Exception(ex.Message); } Icon ic = null; try { ic = (Icon)Icon.FromHandle(hSmallIcon).Clone(); } catch (Exception e) { return null; } return ic; } [DllImport("coredll.dll", CharSet = CharSet.Auto)] public extern static int GetModuleFileName(uint hModule, StringBuilder strFullPath, int nSize); [DllImport("coredll.dll", SetLastError = true)] private static extern IntPtr ExtractIconEx(string fileName, int index, ref IntPtr hIconLarge, ref IntPtr hIconSmall, uint nIcons);
来看一下显示获得的图标，这需要在界面的listView控件中加入imageList
private void RefreshList() { processes = Process.GetProcesses(); ListViewItem lvi; listProcess.BeginUpdate(); listProcess.Items.Clear(); ImageList imageListSmall = new ImageList(); int i = 0; foreach (Process p in processes) { lvi = new ListViewItem(p.ProcessName); Icon ic; ic = p.GetIconFromExe(); if (ic != null) { imageListSmall.Images.Add(ic); lvi.ImageIndex = i++; } String pid = String.Format("{0:x}", p.ProcessId); lvi.SubItems.Add(pid); lvi.SubItems.Add(p.ThreadCount.ToString()); listProcess.Items.Add(lvi); } listProcess.SmallImageList = imageListSmall; listProcess.EndUpdate(); }
其中listProcess是一个listView控件的实例
