how to lock one drive ?

[ahura24]

hello guys i really try to fine one code how to lock one drive but i dont fine nothing . lock all read/write one drive such as usb, cdrom, ...
if everybody know please help me how can i do this
tnx

[webJose]

This is how you lock a volume: http://msdn.microsoft.com/en-us/library/aa364575(VS.85).aspx .

[ahura24]

tnx my friend i know that i must use deviceIOcontrol but i cant know how ?!!! i can use this and eject removealbe drive but i want lock one drive please help me how can i do this tnx a lot