data

struct swf_definesceneandframedata {
	swf_tag				f_tag;		/* 86 */
	unsigned char			f_data[tag size];
};

This tag is used to define some raw data for a scene and frame. It is often used to include XML files in Flash animations.

f_data is an array of bytes.

struct swf_doabc {
	swf_tag			f_tag;		/* 72 or 82 */
	if(f_tag == DoABC) {
		unsigned long	f_action_flags;
		string		f_action_name;
	}
	swf_action3		f_action_record[variable];
};

^*the version specified here is the version in which the tags appeared—however, actions of higher versions can be used with older version tags and thus this version doesn't indicate the version of all the actions used in this tag

The DoABC and DoABCDefine are available since version 9. These are similar to the old DoAction and DoInitAction, yet the actions use a way different declaration scheme and they include flags and a name. This new scheme helps greatly in simplifying the definitions of ECMAScript classes and accelerate the access to the code tremendously.

Note that the ...

struct swf_startsound {
	swf_tag			f_tag;		/* 61 */
	unsigned short		f_video_id_ref;
	unsigned short		f_frame;
	unsigned char		f_video_data[variable size];
};

The VideoFrame tag is used to render one frame. It includes the data of exactly one video frame to be drawn on the screen.

The f_object_id_ref parameter is a reference to a DefineVideoStream.

struct swf_export {
	swf_tag			f_tag;		/* 56 */
	unsigned short		f_count;
	swf_external		f_symbol[f_count];
};

The Export tag works in conjunction with the Import and Import2 tags. The Export tag gives a list of definitions made visible to the external world. Thus these definitions are in effect available to be imported by other movies.

struct swf_definesprite {
	swf_tag			f_tag;		/* 39 */
	unsigned short		f_sprite_id;
	unsigned short		f_frame_count;
	...			<data>;
	swf_tag			f_end;
};

A sprite is a set of SWF tags defining an animated object which can then be used as a simple object. A sprite cannot contain another sprite. hHowever, you can use PlaceObject2 to place a sprite in another.

The following are the tags accepted in a Sprite:

Dec 2, 2009

Moved the monolithic documentation to a multi-page hierarchical document that includes everything we had before plus many links, many terms attached to all pages (tags, English words.) And revision of most of the text for better English and clarification in some places.

Strengthen the formatting with CCK fields so all declarations look alike.

Broken up the actions from one large table to a set of pages.

Dec 14, 2008

Started work on the Load() feature of the SSWF library. This helped fixing several small mistakes in the documentation.

May 18, 2008

Fixed the ...

The SWF Reference by Alexis is part of the free SSWF project.

This documentation is intended for people who want to program a Flash player, editor, or some similar tool handling Flash data.

The project comes with a complete C++ library that is designed to greatly simplify the generation and loading of Flash files.

struct swf_zone_data {
	short float		f_zone_position;
	short float		f_zone_size;
};

The swf_zone_array includes an array of zone data as described below:

The f_zone_position specifies the X or Y coordinate. The array can either include only horizontal, only vertical or both sets of coordinates.

The f_zone_size specifies the Width or Height of the zone.

struct swf_zone_array {
	unsigned char		f_zone_count;		/* always 2 in V8.0 */
	swf_zone_data		f_zone_data[f_zone_count];
	/* I inverted the bits below, but I'm not too sure what is correct, do you know? */
	unsigned		f_reserved : 6;
	unsigned		f_zone_y : 1;		/* probably always 1 in V8.0 */
	unsigned		f_zone_x : 1;		/* probably always 1 in V8.0 */
};

An array of alignment zones defines hints about glyphs defined in a DefineFont3.

The f_zone_count specifies how many zones are defined in a zone array. In version 8 of SWF, the count must be set to 2.

The f_zone_data is an array of zones, each defining a position and a size.

struct swf_envelope {
	unsigned long		f_position;
	unsigned short		f_volume_left;
	unsigned short		f_volume_right;
};

When playing back a sound effect it is possible to modulate the sound to generate different effects (such as a fade in and out). The following defines the stereo volume of the sound.

The position is always given as if the sample data was defined with a rate of 44,100 bytes per seconds. For instance, the sample number 1 in a sound effect with a sample rate of 5.5K is given as position 8 in the envelope. All of these positions should be within the f_in_point and f_out_point.