gdkPixbufSave: gdkPixbufSave
Description
Saves pixbuf to a file in format type. By default, "jpeg", "png", "ico"
and "bmp" are possible file formats to save in, but more formats may be
installed. The list of all writable formats can be determined in the
following way:Usage
gdkPixbufSave(object, filename, type, ..., .errwarn = TRUE)
Arguments
filename
[char] name of file to save.
type
[char] name of file format.
...
list of key-value save options
.errwarn
Whether to issue a warning on error or fail silently
Value
- A list containing the following elements:
- retval[logical] whether an error was set
error[GError] return location for error, or NULL
Details
formats <- gdkPixbufGetFormats()
writeable_formats <- formats[sapply(formats, gdkPixbufFormatIsWritable)]
If error is set, FALSE will be returned. Possible errors include
those in the GDK_PIXBUF_ERROR domain and those in the G_FILE_ERROR domain.
The variable argument list should be NULL-terminated; if not empty,
it should contain pairs of strings that modify the save
parameters. For example:
# (R does not require vararg lists)
pixbuf$save(handle, "jpeg", "quality", "100")
Currently only few parameters exist. JPEG images can be saved with a
"quality" parameter; its value should be in the range [0,100].
Text chunks can be attached to PNG images by specifying parameters of
the form "tEXt::key", where key is an ASCII string of length 1-79.
The values are UTF-8 encoded strings. The PNG compression level can
be specified using the "compression" parameter; it's value is in an
integer in the range of [0,9].
ICO images can be saved in depth 16, 24, or 32, by using the "depth"
parameter. When the ICO saver is given "x_hot" and "y_hot" parameters,
it produces a CUR instead of an ICO.