/// <summary>
/// Registers a callback with a device, that gets called whenever a "Soft Button" is pressed or released.
/// </summary>
/// <param name="device">A handle to a device.</param>
/// <param name="callback">Callback delegate to be called whenever a "Soft Button" is pressed or released.</param>
/// <remarks>
/// Passing in a null to callback will disable the callback.
/// </remarks>
/// <exception cref="HResultException"></exception>
public void RegisterSoftButtonCallback(IntPtr device, SoftButtonCallback callback)
{
HResult retVal = registerSoftButtonCallback(device, callback, new IntPtr());
if (retVal != HResultException.S_OK)
{
Dictionary <HResult, String> errorsMap = new Dictionary <HResult, String>()
{
{ HResultException.E_HANDLE, "The device handle specified is invalid." }
};
throw new HResultException(retVal, errorsMap);
}
}
internal static ReturnValues RegisterSoftButtonCallback(IntPtr hDevice, SoftButtonCallback pfnCallback)
{
return((ReturnValues)DirectOutput_RegisterSoftButtonCallback(hDevice, pfnCallback, IntPtr.Zero));
}
static extern IntPtr DirectOutput_RegisterSoftButtonCallback(IntPtr hDevice, [MarshalAs(UnmanagedType.FunctionPtr)] SoftButtonCallback pfnCallback, IntPtr pvParam);