PNMFileTypeRegistry¶

class PNMFileTypeRegistry¶

This class maintains the set of all known PNMFileTypes in the universe.

Inheritance diagram

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PNMFileTypeRegistry.__init__()¶

static PNMFileTypeRegistry.get_global_ptr()¶: Returns a pointer to the global PNMFileTypeRegistry object.

PNMFileTypeRegistry.get_num_types()¶: Returns the total number of types registered.

PNMFileTypeRegistry.get_type()¶: Returns the nth type registered.

PNMFileTypeRegistry.get_type_by_handle()¶: Returns the PNMFileType instance stored in the registry for the given TypeHandle, e.g. as retrieved by a previous call to get_type() on the type instance.

PNMFileTypeRegistry.get_type_from_extension()¶: Tries to determine what the PNMFileType is likely to be for a particular image file based on its extension. Returns a suitable PNMFileType pointer, or NULL if no type can be determined.

PNMFileTypeRegistry.get_type_from_magic_number()¶: Tries to determine what the PNMFileType is likely to be for a particular image file based on its magic number, the first two bytes read from the file. Returns a suitable PNMFileType pointer, or NULL if no type can be determined.

PNMFileTypeRegistry.write()¶: Writes a list of supported image file types to the indicated output stream, one per line.