WDK Mini Filter Example
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1 PassThrough File System Minifilter Driver
2 =========================================
4 The PassThrough minifilter demonstrates how to specify callback functions for different types of I/O requests.
6 ## Universal Windows Driver Compliant
7 This sample builds a Universal Windows Driver. It uses only APIs and DDIs that are included in OneCoreUAP.
9 Design and Operation
10 --------------------
12 The *PassThrough* minifilter does not have any real functionality. For each type of I/O operation, the same pre and post callback functions are called. These callback functions simply forward the I/O request to the next filter on the stack.
14 For more information on file system minifilter design, start with the [File System Minifilter Drivers](http://msdn.microsoft.com/en-us/library/windows/hardware/ff540402) section in the Installable File Systems Design Guide.

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