successfully. Otherwise, [cairo.types.Status.NoMemory] if memory could not be allocated for the operation or [cairo.types.Status.SurfaceTypeMismatch] if the surface does not have pixel contents, or [cairo.types.Status.WriteError] if an I/O error occurs while attempting to write the file, or [cairo.types.Status.PngError] if libpng returned an error.
Surface.writeToPng
cairo.types.Status writeToPng(string filename)Writes the contents of surface to a new file filename as a PNG image.
Parameters
filename | the name of a file to write to; on Windows this filename is encoded in UTF-8. |
Returns
[cairo.types.Status.Success] if the PNG file was written