THORLABS DCU22 Series Description And Sdk Manual

© 2016 Thorlabs Scientific Imaging
4 Programming (SDK)
301
4.3.67 is_LockSeqBuf
USB 2.0
USB 3.0
USB 2.0
USB 3.0
Syntax
INT is_LockSeqBuf (HIDS hCam, INT nNum, char* pcMem)
Description
is_LockSeqBuf() locks write access to an image memory within a sequence. In the capturing
process, locked image memories will be skipped in the sequence list of image memories to be
used. This way, you can avoid that image data which are required for further processing will be
overwritten by newly captured data. Full access to the image memory is still guaranteed. You can
lock any number of image memories at the same time.
Using the is_UnlockSeqBuf() function, you can re-enable write access to the image memory.
Input parameters
hCam
Camera handle
nNum
Number of the image memory to be locked (1…max) or
IS_IGNORE_PARAMETER: The image memory will be identified by its
starting address only.
pcMem
Starting address of the image memory to be locked
Attention
nNum indicates the location in the sequence list, not the memory ID assigned using
is_AllocImageMem().
Return values
IS_BAD_STRUCTURE_SIZE
An internal structure has an incorrect size.
IS_INVALID_CAMERA_HANDLE
Invalid camera handle
IS_INVALID_PARAMETER
One of the submitted parameters is outside the
valid range or is not supported for this sensor or
is not available in this mode.
IS_NO_SUCCESS
General error message
IS_SUCCESS
Function executed successfully
Related functions
is_UnlockSeqBuf()
is_AddToSequence()
is_SetImageMem()
is_SetAllocatedImageMem()

THORLABS DCU22 Series Specifications

General

Brand	THORLABS
Model	DCU22 Series
Category	Security Camera
Language	English