Measurement Computing ADLIB WIN - Manual (Page 123)

Chapter 40 Buffer Handler Functions 27-3
27.3 AL_GetBuffPtr
Prototype C\C++
LPBUFFSTRUCT AL_GetBuffPtr(LHLD lhld, long lBuffNum);
Visual Basic for Windows
Not supported
LHLD lhld handle of the LDSD
long lBuffNum specifies the buffer
The AL_GetBuffPtr function retrieves a buffer pointer from the LDSD. See section
6.3 THE BUFFER
STRUCTURE for additional details.
Parameter Description
lhld Identifies the instance of the logical device subsystem.
lBuffNum
Specifies the buffer ID number from which a pointer is returned.
Returns:
On success LPBUFFSTRUCT points to the desired buffer, otherwise LPBUFFSTRUCT is set to NULL
indicating the buffer is not available. The LPBUFFSTRUCT is a structure defined in adlib.h which
contains a pointer to the buffer and current status information of the buffer. See the Memory Buffer
Allocation chapter for a complete description of buffer handling concepts and the LPBUFFSTRUCT
structure details.
Related Functions:
AL_ClearBufferDoneFlag
AL_GetBufferStatus
Supported Logical Device Subsystems:
Pci55xx Series: ADC0, DAC0, DAC1