Selecting Column Headers

You can specify which API call data is displayed in the main NI I/O Trace window by selecting various column headers. To select the column headers, select Tools»Options, select the View Selections tab, and select the headers you want to display under Column Headers.

Note  You can modify NI I/O Trace options only when capture is stopped.

Number

This column displays the number of each NI API call.

Description

This column displays the names of the API calls that NI I/O Trace captures.

Status

This column displays each API call's output status value. (For calls made to the NI-488.2 API, this is equivalent to ibsta.)

iberr

This column shows the API call's output error (iberr) value. (This data is available only for calls made to the NI-488.2 API.)

ibcntl

This column shows the API call's output count (ibcntl) value. (This data is available only for calls made to the NI-488.2 API.)

Time

This column displays the API call's start time. The time is in the format hours : minutes : seconds : milliseconds.

Duration

The amount of time each call took. The time is in the format hours : minutes : seconds : milliseconds. If the value of hours or minutes is 0, the field is omitted.

Process ID

This column displays the process ID (in hexadecimal format) of the process that made each API call.

Thread ID

This column displays the thread ID (in hexadecimal format) of the thread that made each API call.