THORLABS DCU223 SERIES User Manual

323SDK (Software development Kit)
© 2010 Thorlabs
7.5.6
is_LockDDMem
USB 2.0
-
Syntax
INT is_LockDDMem (HIDS hCam, void** ppMem, INT* pPitch)
Description
This function is obsolete and should not be used anymore. We recommend to use the
is_DirectRenderer() function instead (see also Obsolete Functions ).
is_LockDDMem() enables access to the image memory in DirectDraw mode and returns the pointer
to the image memory. In most cases, the image memory is located on the graphics card. Using the
pointer, you have direct access to the image memory. Make sure to release the memory as early as
possible using the is_UnlockDDMem() function.
Calling is_LockDDMem() will not interrupt the process of digitising an image and saving it to the
memory area.
While a LockDDMem ... UnlockDDMem block is executed in DirectDraw BackBuffer mode, the
contents of the back buffer will not be refreshed on the screen.
Input Parameters
hCam
Camera handle
ppMem
Pointer to the variable that holds the address pointer
pPitch
Pointer to the variable that holds the pitch value
Return Values
IS_SUCCESS
Function executed successfully
IS_NO_SUCCESS
General error message
Related Functions
is_UnlockDDMem()
is_LockDDOverlayMem()
is_UnlockDDOverlayMem()
is_LockSeqBuf()
is_UnlockSeqBuf()
is_UpdateDisplay()
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THORLABS DCU223 SERIES Specifications

General

Brand	THORLABS
Model	DCU223 SERIES
Category	Security Camera
Language	English