void*vips_value_get_area(constGValue*value,size_t*length)
Get the pointer from an area. Don’t touch count (area is static).
valueType: GValue
Get from this value.
| The data is owned by the caller of the function. |
lengthType: size_t*
Optionally return length here.
| The argument will be set by the function. |
The argument can beNULL. |