CairoWriteFunc {RGtk2} | R Documentation |
CairoWriteFunc
Description
A callback used by cairo for outputting graphics data in formats
like svg and png.
Signature
CairoWriteFunc(data, length, user_data)
{
he type of function which is called when a backend needs to write data to an
output stream. It is passed the closure which was specified by the user at the
time the write function was registered, the data to write and the length of the
data in bytes. The write function should return CAIRO_STATUS_SUCCESS
if all the
data was successfully written, CAIRO_STATUS_WRITE_ERROR
otherwise..
data
- [raw] the buffer containing the data to write
length
- [numeric] the amount of data to write
user_data
- [R object] user-supplied data
}
Author(s)
Michael Lawrence
References
http://www.cairographics.org/manual/cairo-PNG-Support.html
[Package
RGtk2 version 2.12.5-3
Index]