MouseMove error

1>c:\users\cody\documents\visual studio 2010\projects\form rapid fire\form rapid fire\Form1.h(1460): error C3728: 'event System::Windows::Forms::MouseEventHandler ^System::Windows::Forms::Control::MouseMove': event does not have a raise method
1>c:\users\cody\documents\visual studio 2010\projects\form rapid fire\form rapid fire\Form1.h(1464): warning C4244: '=' : conversion from 'double' to 'LONG', possible loss of data
[CODE]int x;
int y;
double fScreenHeight = ::GetSystemMetrics( SM_CYSCREEN )-1;
double fy = y*(256.0f/fScreenHeight);
MouseMove(100,100);
INPUT Input={0};
Input.type = INPUT_MOUSE;
Input.mi.dwFlags = MOUSEEVENTF_MOVE|MOUSEEVENTF_ABSOLUTE;
Input.mi.dy = fy;
::SendInput(1,&Input,sizeof(INPUT));[/CODE[