# [−][src]Trait image::ImageDecoderExt

    pub trait ImageDecoderExt: ImageDecoder + Sized {
        fn read_rect_with_progress<F: Fn(Progress)>(
            &mut self,
            x: u64,
            y: u64,
            width: u64,
            height: u64,
            buf: &mut [u8],
            progress_callback: F
        ) -> ImageResult<()>;

        fn read_rect(
            &mut self,
            x: u64,
            y: u64,
            width: u64,
            height: u64,
            buf: &mut [u8]
        ) -> ImageResult<()> { ... }
    }

ImageDecoderExt trait

## Required methods

### `fn read_rect_with_progress<F: Fn(Progress)>(
&mut self,
x: u64,
y: u64,
width: u64,
height: u64,
buf: &mut [u8],
progress_callback: F
) -> ImageResult<()>`

Read a rectangular section of the image, periodically reporting progress.

Loading content...

## Provided methods

### `fn read_rect(
&mut self,
x: u64,
y: u64,
width: u64,
height: u64,
buf: &mut [u8]
) -> ImageResult<()>`

Read a rectangular section of the image.

Loading content...

## Implementors

### `impl<R: BufRead + Seek> ImageDecoderExt for HDRAdapter<R>`[src]

#### `fn read_rect_with_progress<F: Fn(Progress)>(
&mut self,
x: u64,
y: u64,
width: u64,
height: u64,
buf: &mut [u8],
progress_callback: F
) -> ImageResult<()>`[src]

### `impl<R: Read + Seek> ImageDecoderExt for BMPDecoder<R>`[src]

#### `fn read_rect_with_progress<F: Fn(Progress)>(
&mut self,
x: u64,
y: u64,
width: u64,
height: u64,
buf: &mut [u8],
progress_callback: F
) -> ImageResult<()>`[src]

### `impl<R: Read + Seek> ImageDecoderExt for DXTDecoder<R>`[src]

#### `fn read_rect_with_progress<F: Fn(Progress)>(
&mut self,
x: u64,
y: u64,
width: u64,
height: u64,
buf: &mut [u8],
progress_callback: F
) -> ImageResult<()>`[src]

Loading content...

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