Function
GdkPixbufPixbufModuleBeginLoadFunc
Declaration
gpointer
(* GdkPixbufModuleBeginLoadFunc) (
GdkPixbufModuleSizeFunc size_func,
GdkPixbufModulePreparedFunc prepared_func,
GdkPixbufModuleUpdatedFunc updated_func,
gpointer user_data,
GError** error
)
Description [src]
Sets up the image loading state.
The image loader is responsible for storing the given function pointers and user data, and call them when needed.
The image loader should set up an internal state object, and return it
from this function; the state object will then be updated from the
GdkPixbufModuleIncrementLoadFunc callback, and will be freed
by GdkPixbufModuleStopLoadFunc callback.
This function is not directly available to language bindings.
Parameters
size_func-
Type:
GdkPixbufModuleSizeFuncThe function to be called when the size is known.
prepared_func-
Type:
GdkPixbufModulePreparedFuncThe function to be called when the data has been prepared.
updated_func-
Type:
GdkPixbufModuleUpdatedFuncThe function to be called when the data has been updated.
user_data-
Type:
gpointerThe data to be passed to the functions.
The argument can be NULL.The data is owned by the caller of the function. error-
Type:
GError **The return location for a recoverable error.
The argument can be NULL.If the return location is not NULL, then you must initialize it to aNULLGError*.The argument will be left initialized to NULLby the function if there are no errors.In case of error, the argument will be set to a newly allocated GError; the caller will take ownership of the data, and be responsible for freeing it.
Return value
Type: gpointer
The data to be passed to
GdkPixbufModuleIncrementLoadFunc
and GdkPixbufModuleStopLoadFunc, or NULL in case of error.
| The caller of the function takes ownership of the data, and is responsible for freeing it. |
The return value can be NULL. |