gdkPixbufNewFromStreamAtScale: gdkPixbufNewFromStreamAtScale
Description
Creates a new pixbuf by loading an image from an input stream. Usage
gdkPixbufNewFromStreamAtScale(stream, width = -1, height = -1, preserve.aspect.ratio = 1, cancellable = NULL, .errwarn = TRUE)
Arguments
width
The width the image should have or -1 to not constrain the width
height
The height the image should have or -1 to not constrain the height
preserve.aspect.ratio
TRUE
to preserve the image's aspect ratio
.errwarn
Whether to issue a warning on error or fail silently
Value
A list containing the following elements:
- retval
- [
GdkPixbuf
] A newly-created pixbuf, or NULL
if any of several error
conditions occurred: the file could not be opened, the image format is
not supported, there was not enough memory to allocate the image buffer,
the stream contained invalid data, or the operation was cancelled. error
- Return location for an error
Details
The file format is detected automatically. If NULL
is returned, then
error
will be set. The cancellable
can be used to abort the operation
from another thread. If the operation was cancelled, the error
GIO_ERROR_CANCELLED
will be returned. Other possible errors are in
the GDK_PIXBUF_ERROR
and G_IO_ERROR
domains.
The image will be scaled to fit in the requested size, optionally
preserving the image's aspect ratio. When preserving the aspect ratio,
a width
of -1 will cause the image to be scaled to the exact given
height, and a height
of -1 will cause the image to be scaled to the
exact given width. When not preserving aspect ratio, a width
or
height
of -1 means to not scale the image at all in that dimension.
The stream is not closed.
Since 2.14