This article shows how to check it out wheather the Keyboard CapsLock,NumLock,ScrollLock On/OFF and also toggle the caps lock
private void Form1_Load(object sender, EventArgs e)
{
if (Control.IsKeyLocked(Keys.CapsLock))
{
listBox1.Items.Add("CapsLock ON");
}
else
{
listBox1.Items.Add("CapsLock OFF");
}
if (Control.IsKeyLocked(Keys.NumLock))
{
listBox1.Items.Add("NumLock ON");
}
else
{
listBox1.Items.Add("NumLock OFF");
}
if (Control.IsKeyLocked(Keys.Scroll))
{
listBox1.Items.Add("ScrollLock ON");
}
else
{
listBox1.Items.Add("ScrollLock OFF");
}
}
private void button1_Click(object sender, EventArgs e)
{
keybd_event(0x14, 0x45, KEYEVENTF_EXTENDEDKEY, (UIntPtr)0);
keybd_event(0x14, 0x45, KEYEVENTF_EXTENDEDKEY | KEYEVENTF_KEYUP,
(UIntPtr)0);
}
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