Lock CD_ROM(Very Important)

Question

Hi I want to know how i can to use this function in C#: DeviceIoControl( ) i want the example explain how i can to use it because i want to lock the open CD_ROM. Please help me

mibuyt · Answer

Hi Since DeviceIOControl is part of the kernel32.dll you can consider looking at platform invocation. Here is an example extracted from pinvoke.net! [DllImport(kernel32.dll ExactSpelling = true SetLastError = true CharSet = CharSet.Auto)] static extern bool DeviceIoControl(IntPtr hDevice uint dwIoControlCode IntPtr lpInBuffer uint nInBufferSize IntPtr lpOutBuffer uint nOutBufferSize out uint lpBytesReturned IntPtr lpOverlapped); Hint: For the 1st argument in the function above you need to get the device handle. To achieve that you need to use the CreateFile of kernel32.dll. Good luck. Cheers. Regards Chua Wen Ching