Pango.version_check
Description: Reference for Pango.version_check

### Function

# Pango.version_check

#### Declaration [src]

    const char*
    pango_version_check (
      int required_major,
      int required_minor,
      int required_micro
    )

#### Description [src]

Checks that the Pango library in use is compatible with the given version.

Generally you would pass in the constants `PANGO_VERSION_MAJOR`, `PANGO_VERSION_MINOR`, `PANGO_VERSION_MICRO` as the three arguments to this function; that produces a check that the library in use at run-time is compatible with the version of Pango the application or module was compiled against.

Compatibility is defined by two things: first the version of the running library is newer than the version `required_major`.required_minor.`required_micro`. Second the running library must be binary compatible with the version `required_major`.required_minor.`required_micro` (same major version.)

For compile-time version checking use `PANGO_VERSION_CHECK()`.

#### Parameters

`required_major` | `int`
| the required major version.
`required_minor` | `int`
| the required minor version.
`required_micro` | `int`
| the required major version.

#### Return value

Returns: `const char*`
`NULL` if the Pango library is compatible with the given version, or a string describing the version mismatch. The returned string is owned by Pango and should not be modified or freed.
Ownership is not transferred to the caller
Can be `NULL`
The string is a NUL terminated UTF-8 string