using System;
using System.Drawing;
using System.Windows.Forms;
using System.Runtime.InteropServices;
namespace ekranresim
{
public partial class Form1 : Form
{
[DllImport("user32.dll", SetLastError = true)]
private static extern IntPtr SetWindowsHookEx(int idHook, LowLevelKeyboardProc lpfn, IntPtr hMod, uint dwThreadId);
[DllImport("user32.dll", SetLastError = true)]
[return: MarshalAs(UnmanagedType.Bool)]
private static extern bool UnhookWindowsHookEx(IntPtr hhk);
[DllImport("user32.dll", SetLastError = true)]
private static extern IntPtr CallNextHookEx(IntPtr hhk, int nCode, IntPtr wParam, IntPtr lParam);
[DllImport("kernel32.dll", SetLastError = true)]
private static extern IntPtr GetModuleHandle(string lpModuleName);
private const int WH_KEYBOARD_LL = 13;
private const int WM_KEYDOWN = 0x0100;
private const int VK_XBUTTON1 = 0x05;
private delegate IntPtr LowLevelKeyboardProc(int nCode, IntPtr wParam, IntPtr lParam);
private event Action XMouseButton1Pressed;
private IntPtr hookId = IntPtr.Zero;
public Form1()
{
InitializeComponent();
this.Load += (s, e) => SetHook();
this.FormClosing += (s, e) => Unhook();
XMouseButton1Pressed += () =>
{
CaptureScreen();
};
}
private void SetHook()
{
using (ProcessModule module = Process.GetCurrentProcess().MainModule)
{
hookId = SetWindowsHookEx(WH_KEYBOARD_LL, LowLevelKeyboardProcCallback, GetModuleHandle(module.ModuleName), 0);
}
}
private void Unhook()
{
UnhookWindowsHookEx(hookId);
}
private IntPtr LowLevelKeyboardProcCallback(int nCode, IntPtr wParam, IntPtr lParam)
{
if (nCode >= 0 && wParam == (IntPtr)WM_KEYDOWN)
{
int vkCode = Marshal.ReadInt32(lParam);
if (vkCode == VK_XBUTTON1)
{
XMouseButton1Pressed?.Invoke();
}
}
return CallNextHookEx(hookId, nCode, wParam, lParam);
}
private void CaptureScreen()
{
using (Bitmap bitmap = new Bitmap(Screen.PrimaryScreen.Bounds.Width, Screen.PrimaryScreen.Bounds.Height))
{
using (Graphics g = Graphics.FromImage(bitmap))
{
g.CopyFromScreen(Screen.PrimaryScreen.Bounds.X, Screen.PrimaryScreen.Bounds.Y, 0, 0, bitmap.Size);
}
bitmap.Save("ekranresim.png");
}
}
}
}
