Description Usage Value Author(s)
Creates a new image surface from PNG data read incrementally
via the read.func
function.
1 |
[CairoSurface
] a new CairoSurface
initialized with the contents
of the PNG file or a "nil" surface if the data read is not a valid PNG image
or memory could not be allocated for the operation. A nil
surface can be checked for with cairo_surface_status(surface) which
may return one of the following values:
CAIRO_STATUS_NO_MEMORY
CAIRO_STATUS_READ_ERROR
Alternatively, you can allow errors to propagate through the drawing
operations and check the status on the context upon completion
using cairoStatus
.
Derived by RGtkGen from GTK+ documentation
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