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# CGPSConverterCallbacks

A structure for holding the callbacks provided when you create a PostScript converter object.

```
struct CGPSConverterCallbacks
```

## Topics

### Initializers

[`init()`](/documentation/CoreGraphics/CGPSConverterCallbacks/init())

[`init(version:beginDocument:endDocument:beginPage:endPage:noteProgress:noteMessage:releaseInfo:)`](/documentation/CoreGraphics/CGPSConverterCallbacks/init(version:beginDocument:endDocument:beginPage:endPage:noteProgress:noteMessage:releaseInfo:))

### Instance Properties

[`beginDocument`](/documentation/CoreGraphics/CGPSConverterCallbacks/beginDocument)

The callback called at the beginning of the conversion of the PostScript document, or `NULL`.

[`beginPage`](/documentation/CoreGraphics/CGPSConverterCallbacks/beginPage)

The callback called at the start of the conversion of each page in the PostScript document, or `NULL`.

[`endDocument`](/documentation/CoreGraphics/CGPSConverterCallbacks/endDocument)

The callback called at the end of conversion of the PostScript document, or `NULL`.

[`endPage`](/documentation/CoreGraphics/CGPSConverterCallbacks/endPage)

The callback called at the end of the conversion of each page in the PostScript document, or `NULL`.

[`noteMessage`](/documentation/CoreGraphics/CGPSConverterCallbacks/noteMessage)

The callback called to pass any messages that might result during the conversion, or `NULL`.

[`noteProgress`](/documentation/CoreGraphics/CGPSConverterCallbacks/noteProgress)

The callback called periodically during the conversion to indicate that conversion is proceeding, or `NULL`.

[`releaseInfo`](/documentation/CoreGraphics/CGPSConverterCallbacks/releaseInfo)

The callback called when the converter is deallocated, or `NULL`.

[`version`](/documentation/CoreGraphics/CGPSConverterCallbacks/version)

The version number of the structure passed in as a parameter to the converter creation functions. The structure defined below is version `0`.


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