Method

VipsRegionblend_over

Declaration [src] 

void
vips_region_blend_over (
  VipsRegion* reg,
  VipsRegion* dest,
  const VipsRect* r,
  int x,
  int y
)

Description [src]

Alpha blend area r in reg OVER dest at position x, y.

8 and 16 bit images with an alpha channel only.

See also

vips_region_copy().

Parameters

dest

Type: VipsRegion

Destination region.

The argument will be modified by the function.
The caller of the method takes ownership of the returned data, and is responsible for freeing it.
r

Type: VipsRect

VipsRect of pixels you need to copy.

The data is owned by the caller of the method.
x

Type: int

Position of r in dest.

y

Type: int

Position of r in dest.