Contents

init(filename:)

Creates a direct-access data provider that uses a file to supply data.

Declaration

init?(filename: UnsafePointer<CChar>)

Parameters

  • filename:

    The full or relative pathname to use for the data provider. When you supply Core Graphics data via the provider, it reads the data from the specified file.

Return Value

A new data provider or NULL if the file could not be opened. In Objective-C, you’re responsible for releasing this object using CGDataProviderRelease.

Discussion

You use this function to create a direct-access data provider that supplies data from a file. When you supply Core Graphics with a direct-access data provider, Core Graphics obtains data from your program in a single block.

See Also

Creating Direct-Access Data Providers