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151SDK (Software development Kit)

7.3.20

is_GetActSeqBuf

USB 2.0

Syntax

INT is_GetActSeqBuf (HIDS hCam, INT* pnNum,

char** ppcMem, char** ppcMemLast);

Description

Using is_GetActSeqBuf(), you can determine the image memory which is currently used for

capturing an image (ppcMem) or the image memory that was last used for capturing an image (

ppcMemLast). This function is only available if you have enabled ring buffering.

This number is not the ID of the image memory that was allocated using the is_AllocImageMem

() function, but the running number from the order in which memory was allocated by the

is_AddToSequence() function.

Input Parameters

hCam

Camera handle

pnNum

Contains the number of the image memory currently used for image capturing.

If image capturing is already in progress when is_GetActSeqBuf() is called,

pnNum will return the value 0 until the sequence arrives at the first image

memory again.

ppcMem

Contains the starting address of the image memory currently used for image

capturing.

ppcMemLast

Contains the starting address of the image memory last used for image

capturing.

Return Values

IS_SUCCESS

Function executed successfully

IS_NO_SUCCESS

General error message

Related Functions

is_AddToSequence()

is_GetImageMem()

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THORLABS DCC1645C User Manual

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