GIRepository.CallableInfo.invoke

### Method

# GIRepository CallableInfoinvoke

since: 2.80

#### Declaration [src]

    gboolean
    gi_callable_info_invoke (
      GICallableInfo* info,
      void* function,
      const GIArgument* in_args,
      size_t n_in_args,
      GIArgument* out_args,
      size_t n_out_args,
      GIArgument* return_value,
      GError** error
    )

#### Description [src]

Invoke the given `GICallableInfo` by calling the given `function` pointer.

The set of arguments passed to `function` will be constructed according to the introspected type of the `GICallableInfo`, using `in_args`, `out_args` and `error`.

Available since: 2.80

#### Parameters

`function`

  Type: `void*`

  Function pointer to call.

  The argument can be `NULL`.
  The data is owned by the caller of the method.

`in_args`

  Type: An array of `GIArgument`

  Array of ‘in’ arguments.

  The length of the array is specified in the `n_in_args` argument.
  The data is owned by the caller of the method.

`n_in_args`

  Type: `size_t`

  Number of arguments in `in_args`.

`out_args`

  Type: An array of `GIArgument`

  Array of ‘out’ arguments allocated by the caller, to be populated with outputted values.

  The length of the array is specified in the `n_out_args` argument.
  The data is owned by the caller of the method.

`n_out_args`

  Type: `size_t`

  Number of arguments in `out_args`.

`return_value`

  Type: `GIArgument`

  Return location for the return value from the callable; `NULL` may be returned if the callable returns that.

  The argument will be set by the function.
  The returned data is owned by the instance.

`error`

  Type: `GError **`

  The return location for a recoverable error.

  The argument can be `NULL`.
  If the return location is not `NULL`, then you must initialize it to a `NULL` `GError*`.
  The argument will be left initialized to `NULL` by the method if there are no errors.
  In case of error, the argument will be set to a newly allocated `GError`; the caller will take ownership of the data, and be responsible for freeing it.

#### Return value

Type: `gboolean`

`TRUE` if the callable was executed successfully and didn’t throw a `GError`; `FALSE` if `error` is set.