using System;
using System.Windows.Forms;
using System.Runtime.InteropServices; // Add
namespace Caret_Changer
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
const int SPIF_UPDATEINIFILE = 0x01;
const int SPIF_SENDCHANGE = 0x02;
public const uint SPI_SETCARETWIDTH = 0x2007;
[DllImport("user32.dll", EntryPoint = "SystemParametersInfo")]
public static extern bool SystemParametersInfo(uint uiAction, uint uiParam, uint pvParam, uint fWinIni);
private void ChangeCaret(uint caret)
{
SystemParametersInfo(SPI_SETCARETWIDTH, 0, caret, SPIF_UPDATEINIFILE | SPIF_SENDCHANGE);
}
// Start button
private void Button1_Click(object sender, EventArgs e)
{
ChangeCaret(0x0000005); // New caret width
}
// Stop Button
private void Button2_Click(object sender, EventArgs e)
{
ChangeCaret(0x0000001); // Return default width
}
}
}