private void GenerateCallBackException(HookTypes type, SetCallBackResults result)
{
if (result == SetCallBackResults.Success)
{
return;
}
string msg;
switch (result)
{
case SetCallBackResults.AlreadySet:
msg = "A hook of type " + type + " is already registered. You can only register ";
msg += "a single instance of each type of hook class. This can also occur when you forget ";
msg += "to unregister or dispose a previous instance of the class.";
throw new ManagedHooksException(msg);
case SetCallBackResults.ArgumentError:
msg = "Failed to set hook callback due to an error in the arguments.";
throw new ArgumentException(msg);
case SetCallBackResults.NotImplemented:
msg = "The hook type of type " + type + " is not implemented in the C++ layer. ";
msg += "You must implement this hook type before you can use it. See the C++ function ";
msg += "SetUserHookCallback.";
throw new HookTypeNotImplementedException(msg);
}
msg = "Unrecognized exception during hook callback setup. Error code " + result + ".";
throw new ManagedHooksException(msg);
}
/// <include file='Internal.xml' path='Docs/SystemHook/ctor/*'/>
public SystemHook(HookTypes type)
{
this.type = type;
processHandler = new HookProcessedHandler(InternalHookCallback);
SetCallBackResults result = SetUserHookCallback(processHandler, type);
if (result != SetCallBackResults.Success)
{
this.Dispose();
GenerateCallBackException(type, result);
}
}
private void GenerateCallBackException(HookTypes type, SetCallBackResults result)
{
if (result == SetCallBackResults.Success)
{
return;
}
string msg;
switch (result)
{
case SetCallBackResults.AlreadySet:
msg = "A hook of type " + type + " is already registered. You can only register ";
msg += "a single instance of each type of hook class. This can also occur when you forget ";
msg += "to unregister or dispose a previous instance of the class.";
throw new ManagedHooksException(msg);
case SetCallBackResults.ArgumentError:
msg = "Failed to set hook callback due to an error in the arguments.";
throw new ArgumentException(msg);
case SetCallBackResults.NotImplemented:
msg = "The hook type of type " + type + " is not implemented in the C++ layer. ";
msg += "You must implement this hook type before you can use it. See the C++ function ";
msg += "SetUserHookCallback.";
throw new HookTypeNotImplementedException(msg);
}
msg = "Unrecognized exception during hook callback setup. Error code " + result + ".";
throw new ManagedHooksException(msg);
}
