---
title: "getXValue(_:yValue:fromParameter:at:)"
framework: Professional Video Applications
role: symbol
role_heading: Instance Method
platforms: [fxplug 4.0+]
path: "professional_video_applications/fxparameterretrievalapi_v6/getxvalue(_:yvalue:fromparameter:at:)"
---

# getXValue(_:yValue:fromParameter:at:)

Gets the xy position value (in 0.0 - 1.0 floating point) from a parameter.

## Declaration

```swift
func getXValue(_ x: UnsafeMutablePointer<Double>, yValue y: UnsafeMutablePointer<Double>, fromParameter parameterID: UInt32, at time: CMTime) -> Bool
```

## Parameters

- `x`: Pointer to the plug-in variable for the x value.
- `y`: Pointer to the plug-in variable for the y value.
- `parameterID`: Unique identifier for the parameter.
- `time`: Specified time to get the values.

## Return Value

Return Value Returns YES if the values are retrieved successfully; NO otherwise.

## Discussion

Discussion Depending on the host application, the time value may be relative to the start of the timeline or to the start of the clip. See Understanding time in FxPlug.

## See Also

### Instance Methods

- [getBoolValue(_:fromParameter:at:)](professional_video_applications/fxparameterretrievalapi_v6/getboolvalue(_:fromparameter:at:).md)
- [getCustomParameterValue(_:fromParameter:at:)](professional_video_applications/fxparameterretrievalapi_v6/getcustomparametervalue(_:fromparameter:at:).md)
- [getFloatValue(_:fromParameter:at:)](professional_video_applications/fxparameterretrievalapi_v6/getfloatvalue(_:fromparameter:at:).md)
- [getFontName(_:fromParameter:at:)](professional_video_applications/fxparameterretrievalapi_v6/getfontname(_:fromparameter:at:).md)
- [getGradientSamples(_:numSamples:depth:fromParameter:at:)](professional_video_applications/fxparameterretrievalapi_v6/getgradientsamples(_:numsamples:depth:fromparameter:at:).md)
- [getHistogramBlack(in:blackOut:whiteIn:whiteOut:gamma:forChannel:fromParameter:at:)](professional_video_applications/fxparameterretrievalapi_v6/gethistogramblack(in:blackout:whitein:whiteout:gamma:forchannel:fromparameter:at:).md)
- [getIntValue(_:fromParameter:at:)](professional_video_applications/fxparameterretrievalapi_v6/getintvalue(_:fromparameter:at:).md)
- [getParameterFlags(_:fromParameter:)](professional_video_applications/fxparameterretrievalapi_v6/getparameterflags(_:fromparameter:).md)
- [getPathID(_:fromParameter:at:)](professional_video_applications/fxparameterretrievalapi_v6/getpathid(_:fromparameter:at:).md)
- [getRedValue(_:greenValue:blueValue:alphaValue:fromParameter:at:)](professional_video_applications/fxparameterretrievalapi_v6/getredvalue(_:greenvalue:bluevalue:alphavalue:fromparameter:at:).md)
- [getRedValue(_:greenValue:blueValue:fromParameter:at:)](professional_video_applications/fxparameterretrievalapi_v6/getredvalue(_:greenvalue:bluevalue:fromparameter:at:).md)
- [getStringParameterValue(_:fromParameter:)](professional_video_applications/fxparameterretrievalapi_v6/getstringparametervalue(_:fromparameter:).md)