Nothing
cairoImageSurfaceCreateFromPngStream <-
function (con)
{
.notimplemented("is not yet written. It will support reading PNG data from an R connection")
}
cairoSurfaceWriteToPngStream <-
function (surface, con)
{
.notimplemented("is not yet written. It will support writing PNG data to an R connection")
}
## version checking ##
boundCairoVersion <- function() {
as.numeric_version(paste(.RGtkCall("boundCairoVersion"), collapse="."))
}
checkCairo <- function(version) {
.Deprecated("boundCairoVersion() >= version")
boundCairoVersion() >= version
}
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