Measurement Computing ADLIB WIN - Manual (Page 125)

Chapter 40 Buffer Handler Functions 27-5
27.5 AL_SetBuffer
Prototype C\C++
(16 Bit) ERRNUM AL_SetBuffer(LHLD lhld, long lBuffNum, int _far *fpDataBuff,
long lStartPoint, long lCount );
(32 Bit) ERRNUM AL_SetBuffer(LHLD lhld, long lBuffNum, int *fpDataBuff,
long lStartPoint, long lCount );
Visual Basic for Windows
Function AL_ SetBuffer(ByVal lhld As Long, ByVal lBuffNum As Long,
fpDataBuff as Integer, ByVal lStartPoint As Long,
ByVal lCount As Long) As Long
LHLD lhld handle of the LDSD
long lBuffNum
specifies the buffer number
int _far * fpDataBuff
source address of the data buffer
long lStartPoint
starting point in the destination buffer to be set
long lCount
number of samples
The AL_SetBuffer function copies the user fpDataBuff source buffer to the LDSD destination buffer
specified by lBuffNum. This function is used to copy the waveform data to the specified ADLIB buffers for
the Pci55xx DtoA devices.
Parameter Description
lhld Identifies the instance of the logical device subsystem.
lBuffNum
Specifies the ID number of the LDSD buffer to be copied.
fpDataBuff
Specifies the user buffer source address.
lStartPoint
Starting sample point in the LDSD source buffer to be set.
lCount
Number of fpDataBuff samples to be copied.
Returns:
On success the specified LDSD data buffer is updated with the specified fpDataBuff data samples,
otherwise ERRNUM contains the last error code that occurred during the call.
Related Functions:
AL_SetNumOfBuffers
AL_SetBufferSize
Supported Logical Device Subsystems:
Pci55xx Series: DAC0, DAC1