The MTP Specification contains this definition of the CancelTransaction Event: G.2.2 CancelTransaction Event Code: 0x4001 Parameter 1: None Parameter 2: None Parameter 3: None This event is used to initiate the cancellation of a transaction over...

A question was raised today on how to run the WPD sample drivers on Windows XP. WPD drivers and applications can run downlevel on Windows XP as long as the WPD and UMDF runtimes are both installed. Compiling a WPD Driver for your OS For the driver...

WPP Software Tracing is the recommended way to log trace and error messages in your WPD driver. WPP, short for W indows Software Trace P re P rocessor, provides an efficient real-time event logging mechanism. In addition, WPP traces include the system...