private void button1_Click(object sender, EventArgs e)
{
if (hHook != 0)
{
return;
}
MouseHookProcedure = new HookProc(MouseHookProc);
hHook = DllImport.SetWindowsHookEx(Consts.WH_MOUSE_LL, MouseHookProcedure,
Marshal.GetHINSTANCE(Assembly.GetExecutingAssembly().GetModules()[0]), 0);
}
private void button2_Click(object sender, EventArgs e)
{
if (hHook == 0)
{
MessageBox.Show("SetWindowsHookEx Failed");
return;
}
if (DllImport.UnhookWindowsHookEx(hHook) == false)
{
return;
}
hHook = 0;
}
public int MouseHookProc(int nCode, IntPtr wParam, IntPtr lParam)
{
//Marshall the data from the callback.
MouseHookStruct MyMouseHookStruct = (MouseHookStruct)Marshal.PtrToStructure(lParam, typeof(MouseHookStruct));
if (nCode < 0)
{
return(DllImport.CallNextHookEx(hHook, nCode, wParam, lParam));
}
else
{
//Create a string variable that shows the current mouse coordinates.
String strCaption = "x = " +
MyMouseHookStruct.pt.x.ToString("d") +
" y = " +
MyMouseHookStruct.pt.y.ToString("d");
//You must get the active form because it is a static function.
label1.Text = strCaption;
return(DllImport.CallNextHookEx(hHook, nCode, wParam, lParam));
}
}