Is_Lockddmem - THORLABS DCU223x Operation Manual And Sdk

DCx Cameras

4.5.16 is_LockDDMem

USB 2.0
Syntax
INT is_LockDDMem (HIDS hCam, void** ppMem, INT* pPitch)
Description
Attention
This function is obsolete and should not be used anymore. We recommend to use the
function instead (see also
198
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
function.
()
448
Calling is_LockDDMem() will not interrupt the process of digitizing 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
ppMem
pPitch
Return values
IS_SUCCESS
IS_NO_SUCCESS
Related functions
is_UnlockDDMem()
is_LockDDOverlayMem()
is_UnlockDDOverlayMem()
is_LockSeqBuf()
is_UnlockSeqBuf()
is_UpdateDisplay()
400
-
Obsolete functions
448
401
449
289
354
450
).
379
Camera handle
Pointer to the variable that holds the address pointer
Pointer to the variable that holds the pitch value
Function executed successfully
General error message
is_DirectRenderer()
is_UnlockDDMem
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