cairoVersion {RGtk2.10} | R Documentation |
Returns the version of the cairo library encoded in a single integer as per CAIRO_VERSION_ENCODE. The encoding ensures that later versions compare greater than earlier versions.
cairoVersion()
A run-time comparison to check that cairo's version is greater than or equal to version X.Y.Z could be performed as follows:
if ( cairoVersion >= CAIRO_VERSION_ENCODE(X,Y,Z)) {...}
See also cairoVersionString
as well as the compile-time
equivalents CAIRO_VERSION
and CAIRO_VERSION_STRING
.
[integer] the encoded version.
Derived by RGtkGen from GTK+ documentation