pipx40_getChannelPattern
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Function |
pipx40_getChannelPattern (ByVal vi As Long, ByVal subUnit As Long, ByRef pattern As Long) As Long | |
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ViStatus |
pipx40_getChannelPattern (ViSession vi, ViUInt32 subUnit, ViAUInt32 pattern); |
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Parameter |
I/O |
Description |
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vi |
in |
Instrument handle |
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subUnit |
in |
Numeric variable indicating in which sub-unit actions will take place |
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pattern |
out |
pointer/reference to the one-dimensional array (vector) to receive the result |
Return Value
0 = Successful operation. Negative values are error codes and positive values are warnings. To get a description of the error, pass the error code to pipx40_error_message.
Description
Obtains the state of all output channels of a sub-unit.
Remarks
The result fills the number of least significant bits corresponding to the size of the sub-unit.
For a Matrix sub-unit, the result is folded into the vector on its row-axis. See Data formats.
Warning
The data array pointed to must contain sufficient bits to hold the bit-pattern for the specified sub-unit, or adjacent memory will be overwritten, causing data corruption and/or a program crash.
Visual Basic Note
To use this function in Visual Basic, it must be passed a pointer to the first element of the data array. For example (assuming a zero-based array):
pipx40_getChannelPattern(vi, subUnit, pattern(0))
Example Code
See the description of pipx40_setChannelPattern for example code using a pattern-based function.