Defines the type of the function that gets called once the size
of the loaded image is known.
The function is expected to set width and height to the desired
size to which the image should be scaled. If a module has no efficient
way to achieve the desired scaling during the loading of the image, it may
either ignore the size request, or only approximate it - gdk-pixbuf will
then perform the required scaling on the completely loaded image.
If the function sets width or height to zero, the module should interpret
this as a hint that it will be closed soon and shouldn't allocate further
resources. This convention is used to implement gdk_pixbuf_get_file_info()
efficiently.
Parameters
width: number
pointer to a location containing the current image width
height: number
pointer to a location containing the current image height
Defines the type of the function that gets called once the size of the loaded image is known.
The function is expected to set
widthandheightto the desired size to which the image should be scaled. If a module has no efficient way to achieve the desired scaling during the loading of the image, it may either ignore the size request, or only approximate it - gdk-pixbuf will then perform the required scaling on the completely loaded image.If the function sets
widthorheightto zero, the module should interpret this as a hint that it will be closed soon and shouldn't allocate further resources. This convention is used to implement gdk_pixbuf_get_file_info() efficiently.