Measurement Computing ADLIB WIN - Manual (Page 60)

Chapter 16 Logical Device Transfer Methods 15-2
15.2 AL_GetDataTransferMethod
Prototype C\C++
ERRNUM AL_GetDataTransferMethod(LHLD lhld, LPSTR lpstrMethod, long
lMaxLen);
Visual Basic for Windows
Function AL_GetDataTransferMethod(ByVal lhld As Long,
ByVal lpstrMethod As String,
ByVal lLength As Long) As Long
LHLD lhld
handle of the LDSD
LPSTR lpstrMode destination address of the transfer method string
long lMaxLength the count in bytes to be copied
The AL_GetDataTransferMethod function retrieves the data transfer method of the LDSD.
Parameter Description
lhld Identifies the instance of the logical device subsystem.
lpstrMode
Points to the destination string for the copy.
lMaxLength
Maximum length in bytes to be copied to the user string , including the NULL
termination character.
Returns:
On success ERRNUM is set to 1 and destination string lpstrMethod is set to either
AL_DTM_SOFTWARE, AL_DTM_DMA, AL_DTM_IRQ or AL_DTM_C40PORT as defined in the
ADLIB include file, otherwise ERRNUM contains the last error code that occurred during the call and the
destination string is considered invalid.
Related Functions:
AL_SetDataTransferMethod
Supported Logical Device Subsystems:
Pci55xx
Series: CTR0, CTR1, CTR2, CTR3
Note that CTR0, CTR1 Counters are referenced in the user manual as CNTR0/1 and
Timers CTR2, CTR3 are referenced in the user manual as TMR0/1.
Pci55xx Series: DIN0 to DIN3, DOT0 to DOT3
Pci55xx Series: ADC0, DAC0, DAC1