Function
Vipscall_required_optional
Declaration [src]
int
vips_call_required_optional (
VipsOperation** operation,
va_list required,
va_list optional
)
Description [src]
This is the main entry point for the C and C++ varargs APIs. operation
is executed, supplying required and optional arguments.
Beware, this can change operation to point at an old, cached one.
This function is not directly available to language bindings.
Parameters
operation-
Type:
VipsOperationThe operation to execute.
The data is owned by the caller of the function. required-
Type:
va_list%va_list of required arguments.
optional-
Type:
va_listNULL-terminated %va_list of name / value pairs.