Method

VipsRegionbuffer

Declaration [src] 

int
vips_region_buffer (
  VipsRegion* reg,
  const VipsRect* r
)

Description [src]

The region is transformed so that at least r pixels are available as a memory buffer that can be written to.

Parameters

r VipsRect
 

VipsRect of pixels you need to be able to address.
 The data is owned by the caller of the function.

Return value

Returns: int
 

0 on success, or -1 for error.