Using IRP_MJ_XX

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  Hello,

          I am a novice to WDK and currently working on filesystem minifilter passthrough. While going through it, i want to use some IRP_MJ_XX structures like IRP_MJ_DEVICE_CONTROL, IRP_MJ_DIRECTORY_CONTROL, IRP_MJ_QUERY_QUOTA, IRP_MJ_QUERY_VOLUME_INFORMATION etc. But I didnt get how to create their instances to access their parameters or methods . Can anybody explain?

  Wednesday, January 12, 2011 8:36 PM