private static IntPtr HookCallback(
int nCode, IntPtr wParam, IntPtr lParam)
{
if (nCode >= 0 && wParam == (IntPtr)WM_KEYDOWN)
{
int vkCode = Marshal.ReadInt32(lParam);
if (Control.ModifierKeys == (Keys.Control | Keys.Alt) && (Keys)vkCode == Keys.Left)
{
Instance.BeginInvoke((MethodInvoker)(() =>
{
foreach (WmiMonitorBrightnessMethods methods in WmiMonitorBrightnessMethods.GetInstances())
{
methods.WmiSetBrightness(0, 0);
}
}));
}
if (Control.ModifierKeys == (Keys.Control | Keys.Alt) && (Keys)vkCode == Keys.Right)
{
Instance.BeginInvoke((MethodInvoker)(() =>
{
foreach (WmiMonitorBrightnessMethods methods in WmiMonitorBrightnessMethods.GetInstances())
{
methods.WmiSetBrightness(100, 0);
}
}));
}
if (Control.ModifierKeys == (Keys.Control | Keys.Alt) && (Keys)vkCode == Keys.Up)
{
Instance.BeginInvoke((MethodInvoker)(() =>
{
byte brightness = 0;
foreach (WmiMonitorBrightness instance in WmiMonitorBrightness.GetInstances())
{
brightness = instance.CurrentBrightness;
}
brightness += 5;
if (brightness > 100)
{
brightness = 100;
}
foreach (WmiMonitorBrightnessMethods methods in WmiMonitorBrightnessMethods.GetInstances())
{
methods.WmiSetBrightness(brightness, 0);
}
}));
}
if (Control.ModifierKeys == (Keys.Control | Keys.Alt) && (Keys)vkCode == Keys.Down)
{
Instance.BeginInvoke((MethodInvoker)(() =>
{
byte brightness = 0;
foreach (WmiMonitorBrightness instance in WmiMonitorBrightness.GetInstances())
{
brightness = instance.CurrentBrightness;
}
brightness -= 5;
if (brightness > 100)
{
brightness = 0;
}
foreach (WmiMonitorBrightnessMethods methods in WmiMonitorBrightnessMethods.GetInstances())
{
methods.WmiSetBrightness(brightness, 0);
}
}));
}
}
return(CallNextHookEx(_hookID, nCode, wParam, lParam));
}
