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The latest version of this topic can be found at __indword.

Microsoft Specific**

Reads one double word of data from the specified port using the in instruction.

unsigned long __indword(  
   unsigned short Port  


[in] Port
The port to read from.

The word read from the port.

__indwordx86, x64

Header file <intrin.h>

This routine is only available as an intrinsic.

Compiler Intrinsics