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Chapter 40 Buffer Handler Functions

27-4

27.4 AL_CopyBuffer

Prototype C\C++

(16 Bit) ERRNUM AL_CopyBuffer(LHLD lhld, long lBuffNum,

int _far *fpDataBuff, long lStartPoint, long lCount );

(32 Bit) ERRNUM AL_CopyBuffer(LHLD lhld, long lBuffNum,

int.*fpDataBuff, long lStartPoint, long lCount );

Visual Basic for Windows

Function AL_ CopyBuffer(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 destination address of the data buffer

long lStartPoint starting point in the source buffer to be copied

long lCount number of samples

The AL_ GetCopyBuffer function copies an LDSD source buffer specified by lBuffNum to the user

fpDataBuff destination buffer.

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 destination address.

lStartPoint Starting sample point in the LDSD source buffer to be copied.

lCount Number of LDSD data buffer samples to copy.

Returns:

On success fpDataBuff is set with the specified LDSD buffer’s data, otherwise ERRNUM contains the last

error code that occurred during the call.

Related Functions:

AL_ClearBufferDoneFlag

AL_GetBufferStatus

Supported Logical Device Subsystems:

Pci55xx Series: ADC0, DAC0, DAC1

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Measurement-computing ADLIB WIN Manuale Utente Pagina 124