PgVersion.versionCheck

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().

struct PgVersion
static
string
versionCheck

Parameters

requiredMajor int

the required major version.

requiredMinor int

the required minor version.

requiredMicro int

the required major version.

Return Value

Type: string

%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.

Meta

Since

1.16