Installation guide

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API functions18

4 API functions

The PicoScope 4000 Series API exports the following functions for you to use in your

own applications. All functions are C functions using the standard call naming

convention (__stdcall). They are all exported with both decorated and undecorated

names.

ps4000aBlockReady

Receive notification when block-mode data ready

ps4000aChangePowerSource

Handle dual-port USB powering

ps4000aCurrentPowerSource

Read current power source

ps4000aCloseUnit

Close a scope device

ps4000aDataReady

Indicate when post-collection data ready

ps4000aEnumerateUnits

Find out how many units are connected

ps4000aFlashLed

Flash the front-panel LED

ps4000aGetAnalogueOffset

Find the allowable analog offset range

ps4000aGetChannelInformation

Find out if extra ranges available

ps4000aGetMaxDownSampleRatio

Find out downsampling ratio for data

ps4000aGetMaxSegments

Get maximum number of memory segments

ps4000aGetNoOfCaptures

Get number of rapid block captures

ps4000aGetNoOfProcessedCaptures

Get number of downsampled rapid block captures

ps4000aGetStreamingLatestValues

Get streaming data while scope is running

ps4000aGetTimebase

Find out what timebases are available

ps4000aGetTimebase2

Find out what timebases are available

ps4000aGetTriggerTimeOffset

Find out when trigger occurred (32-bit)

ps4000aGetTriggerTimeOffset64

Find out when trigger occurred (64-bit)

ps4000aGetUnitInfo

Read information about scope device

ps4000aGetValues

Retrieve block-mode data with callback

ps4000aGetValuesAsync

Retrieve streaming data with callback

ps4000aGetValuesBulk

Retrieve more than one waveform at a time

ps4000aGetValuesOverlapped

Retrieve data in overlapping blocks

ps4000aGetValuesOverlappedBulk

Retrieve overlapping data from multiple segments

ps4000aIsLedFlashing

Read status of LED

ps4000aIsReady

Poll driver in block mode

ps4000aIsTriggerOrPulseWidthQualifierEnabled

Find out whether trigger is enabled

ps4000aMaximumValue

Get maximum allowed sample value