The IoSizeOfIrp routine determines the size in bytes for an IRP, given the number of stack locations in the IRP.
- StackSize [in]
Specifies the number of stack locations for the IRP.
IoSizeOfIrp returns the size, in bytes, of the IRP.
The input StackSize value is either that of the next-lower driver's device object or one more than that value.
|Available starting with Windows 2000.|