/// <summary>
/// Implements the GET_WHEEL_DELTA_WPARAM macro.
/// </summary>
///
/// <remarks>
/// For details, refer to
/// https://msdn.microsoft.com/en-us/library/ms646254.aspx.
/// </remarks>
public static short GetWheelDeltaWParam(IntPtr wParam)
{
byte[] source = BitConverter.GetBytes(wParam.ToInt64());
byte[] final = new byte[2];
Win32Utilities.CopyLeastSignificantBytes(source, final, 2);
return(BitConverter.ToInt16(final, 0));
}
/// <summary>
/// Implements the GET_KEYSTATE_WPARAM macro.
/// </summary>
///
/// <remarks>
/// For details, refer to
/// https://msdn.microsoft.com/en-us/library/ms646251.aspx.
/// </remarks>
public static KeyStates GetKeyStateWParam(IntPtr wParam)
{
byte[] source = BitConverter.GetBytes(wParam.ToInt64());
byte[] intermediate = new byte[2];
Win32Utilities.CopyLeastSignificantBytes(source, intermediate);
byte[] final = new byte[4];
Win32Utilities.CopyLeastSignificantBytes(intermediate, final);
return((KeyStates)BitConverter.ToInt32(final, 0));
}
/// <summary>
/// Implements the GET_Y_LPARAM macro.
/// </summary>
///
/// <remarks>
/// For details, refer to
/// https://msdn.microsoft.com/en-us/library/ms632655.aspx.
/// </remarks>
public static int GetYLParam(IntPtr lParam)
{
byte[] source = BitConverter.GetBytes(lParam.ToInt64());
byte[] intermediate = new byte[2];
Win32Utilities.CopyLeastSignificantBytes(source, intermediate, 2);
byte[] final = new byte[4];
Win32Utilities.CopyLeastSignificantBytes(intermediate, final);
return(BitConverter.ToInt32(final, 0));
}
