All Known Implementing Classes:

VNRecognizeTextRequest
```
public interface VNRequestProgressProviding
```

Nested Class Summary

Nested Classes
Modifier and Type	Interface	Description
`static interface`	`VNRequestProgressProviding.Block_progressHandler_ret`
`static interface`	`VNRequestProgressProviding.Block_setProgressHandler`

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`boolean`	`indeterminate()`	If a request cannot determine its progress in fractions completed, this property will be set.
`VNRequestProgressProviding.Block_progressHandler_ret`	`progressHandler()`	Requests that support the VNRequestProgressProviding protocol would periodically call the progressHandler to report progress on longer running tasks.
`void`	`setProgressHandler(VNRequestProgressProviding.Block_setProgressHandler value)`	Requests that support the VNRequestProgressProviding protocol would periodically call the progressHandler to report progress on longer running tasks.

- Method Detail
  - indeterminate
```
boolean indeterminate()
```
    If a request cannot determine its progress in fractions completed, this property will be set. If this is set, it doesn't mean that the request will run forever just that the nature of the request is not broken down into identifiable fractions on which progress can be reported in increments. The progressHandler will nonetheless be called at suitable intervals.
  - progressHandler
```
VNRequestProgressProviding.Block_progressHandler_ret progressHandler()
```
    Requests that support the VNRequestProgressProviding protocol would periodically call the progressHandler to report progress on longer running tasks. The progessHandler is optional allowing clients of the request to report progress to the user and/or display or process partial results when they become available. Note that the progressHandler can be called on a different dispatch queue than what the request was initiated from.
  - setProgressHandler
```
void setProgressHandler(VNRequestProgressProviding.Block_setProgressHandler value)
```
    Requests that support the VNRequestProgressProviding protocol would periodically call the progressHandler to report progress on longer running tasks. The progessHandler is optional allowing clients of the request to report progress to the user and/or display or process partial results when they become available. Note that the progressHandler can be called on a different dispatch queue than what the request was initiated from.

Interface VNRequestProgressProviding

Nested Class Summary

Method Summary

Method Detail

indeterminate

progressHandler

setProgressHandler