
//Form1.cs |
using System; |
using System.Collections; |
using System.Collections.Generic; |
using System.Diagnostics; |
using System.Runtime.InteropServices; |
using System.Windows.Forms; |
namespace WindowScreenshot |
{ |
public partial class Form1 : Form |
{ |
Dictionary<int, string> Apps = null; |
List<int> pl = new List<int>(); |
public Form1() |
{ |
InitializeComponent(); |
} |
[DllImport("User32.dll", EntryPoint = "FindWindow")] |
private static extern IntPtr FindWindow(string lpClassName, string lpWindowName); |
private void GetWindowScreenshotByName(PictureBox PB) |
{ |
IntPtr handle = IntPtr.Zero; |
try |
{ |
PB.Image = null; |
handle = new IntPtr(pl[comboBox1.SelectedIndex]); |
//handle = FindWindow(null, winTitle); |
PB.Image = PrtWnd.PrtWindow(handle); |
} |
catch (Exception ex) |
{ |
MessageBox.Show(ex.Message); |
} |
} |
private void button1_Click(object sender, EventArgs e) |
{ |
comboBox1.Items.Clear(); |
pl.Clear(); |
try |
{ |
Apps = PrtWnd.FindAllApps(this.Handle.ToInt32()); |
foreach (string app in Apps.Values) |
comboBox1.Items.Add(app); |
pl.AddRange(Apps.Keys); |
} |
catch (Exception ex) |
{ |
MessageBox.Show(ex.Message); |
} |
} |
private void comboBox1_SelectedIndexChanged(object sender, EventArgs e) |
{ |
GetWindowScreenshotByName(pictureBox1); |
} |
private void Form1_Load(object sender, EventArgs e) |
{ |
try |
{ |
Apps = PrtWnd.FindAllApps(this.Handle.ToInt32()); |
foreach (string app in Apps.Values) |
comboBox1.Items.Add(app); |
pl.AddRange(Apps.Keys); |
} |
catch (Exception ex) |
{ |
MessageBox.Show(ex.Message); |
} |
} |
} |
} |



