cairoSurfaceWriteToPng
Writes the contents of surface to a new file filename as a PNG
image.
cairoSurfaceWriteToPng(surface, filename)
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[char] the name of a file to write to |
[CairoStatus] CAIRO_STATUS_SUCCESS if the PNG file was written
successfully. Otherwise, CAIRO_STATUS_NO_MEMORY if memory could not
be allocated for the operation or
CAIRO_STATUS_SURFACE_TYPE_MISMATCH if the surface does not have
pixel contents, or CAIRO_STATUS_WRITE_ERROR if an I/O error occurs
while attempting to write the file.
Derived by RGtkGen from GTK+ documentation
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