Made to Order Software Corporation - SWF

Toggle Quality

Alexis Wilke — Tue, 12 Jan 2010 05:26:48 +0000

SWF Action

Action Category:

Movie

Action Details:

Action Identifier:

Action Structure:

<n.a.>

Action Length:

0 byte(s)

Action Stack:

n.a.

Action Operation:

if (_root.quality == HIGH_QUALITY) {
_root.set_quality(LOW_QUALITY);
}
else {
_root.set_quality(HIGH_QUALITY);
}

Action Flash Version:

See Also:

Get Member

Get Property

Set Member

Set Property

Change the quality level from low to high and vice versa. At this time, not sure what happens if you use medium!

Note that the quality is defined on the root only and affects the entire output.

Newer SWF versions (since version 5) should use the movie quality variable member instead of this direct action.

String Less Than

Alexis Wilke — Sat, 09 Jan 2010 12:50:16 +0000

SWF Action

Action Category:

String and Characters

Action Details:

Action Identifier:

Action Structure:

<n.a.>

Action Length:

0 byte(s)

Action Stack:

pop 2 (s), push 1 (b)

Action Operation:

s₁ := pop();
s₂ := pop();
r := s₂ < s₁;
push(r);

Action Flash Version:

See Also:

Equal

Equal (typed)

Greater Than (typed)

Less Than

Less Than (typed)

Strict Equal

String Equal

String Greater Than

Pop two strings, compare them, push the Boolean result back on the stack.

This operation was available since version 4 of SWF. Since Macromedia introduced String Greater Than (typed) in version 6, it is likely that this operator is expected to legally be used, although it seems to me that the Less Than (typed) action should be used instead.

String Greater Than

Alexis Wilke — Fri, 08 Jan 2010 11:47:00 +0000

SWF Action

Action Category:

Comparisons

Action Details:

(typed)

Action Identifier:

104

Action Structure:

<n.a.>

Action Length:

0 byte(s)

Action Stack:

pop 2 (s), push 1 (b)

Action Operation:

s₁ := pop();
s₂ := pop();
r := s₂ > s₁;

push(r);

Action Flash Version:

See Also:

Greater Than (typed)

Less Than

Less Than (typed)

String Equal

String Less Than

Similar to Swap + String Less Than although not exactly the same.

It checks whether the second string is greater than the first and return the Boolean result on the stack.1

IMPORTANT

1. I'm not too sure why Macromedia introduced this action in SWF version 6.

String Equal

Alexis Wilke — Fri, 08 Jan 2010 11:38:25 +0000

SWF Action

Action Category:

Comparisons

Action Details:

Action Identifier:

Action Structure:

<n.a.>

Action Length:

0 byte(s)

Action Stack:

pop 2 (s), push 1 (b)

Action Operation:

s₁ := pop();
s₂ := pop();
r := s₂ == s₁;
push(r);

Action Flash Version:

See Also:

Equal

Equal (typed)

Strict Equal

Logical Not

Pops two strings, compute the equality and put the Boolean result back on the stack.

IMPORTANT

Store Register

Alexis Wilke — Fri, 08 Jan 2010 11:13:10 +0000

SWF Action

Action Category:

Variables

Action Details:

Action Identifier:

135

Action Structure:

unsigned char f_register;

Action Length:

1 byte(s)

Action Stack:

pop 1 (a), push 1 (a)

Action Operation:

a₁ := pop();

target.g_register[f_register] = a₁;
push(a₁);

Action Flash Version:

See Also:

Get Variable

Push Data

Set Variable

Pop one value from the stack, push it back on the stack and also store it in one of 4 or 256 registers which number is specified in the tag (0, 1, 2 or 3 only if not in a Declare Function (V7). I tried other numbers and they don't work in SWF version 6 or older.) Until set a register has the value undefined. The value of a register can be retrieved with a Push Data action and the register type with the matching register number.

Set Target

Alexis Wilke — Wed, 06 Jan 2010 06:04:24 +0000

SWF Action

Action Category:

Movie

Action Details:

(dynamic)

Action Identifier:

139

Action Structure:

string f_target;

Action Length:

-1 byte(s)

Action Stack:

n.a.

Action Operation:

set_target(f_target);

Action Flash Version:

See Also:

Call Method

DefineSprite

Get Member

Set Member

Set Target (dynamic)

If the string f_target is the empty string, then the next actions apply to the main movie.

Otherwise it is the name of a Sprite and the followings actions apply to that Sprite only.

In order to use a dynamic name for the target, use Set Target (dynamic) instead.

Set Property

Alexis Wilke — Wed, 06 Jan 2010 05:57:58 +0000

SWF Action

Action Category:

Movie

Action Details:

Action Identifier:

Action Structure:

<n.a.>

Action Length:

0 byte(s)

Action Stack:

pop 2 (a), pop 1 (s)

Action Operation:

a₁ := pop();
a₂ := pop();
s₃ := pop();
s₃[a₂] = a₁;

Action Flash Version:

See Also:

Get Member

Get Property

Set Member

Pop a value from the stack representing the new property value.

Pop the name of the property to be changed. Note that the property scheme is from version 4 and as such the property name can be represented by a number. Older version actually only accepted floating point numbers.

Finally, pop the name of the object where the specified field property is modified.

The following is the list of currently accepted properties or fields for the Get Property and the Set Property actions. Note that the properties can be specified with either an integer (type 7, requires V5.0+) or a single precision floating point (type 1, V4.0 compatible). And since strings are automatically transformed in a value when required, one can use a string to represent the property number (type 0). It works with a double value, I even tested a Boolean and null and it works. Obviously it isn't a good idea to use these. The default should be a single precision float. Please, see the Push Data action for more information about data types.

WARNING:

Adobe is trying to phase out this functionality. It is very likely not working in ABC code and it is not necessary since objects have member functions that can be used for the exact same purpose and it is a lot cleaner to use those instead.

Float	Decimal	Name	Comments	Version
`0x00000000`	0	x	x position in pixels (not TWIPs!)	4
`0x3F800000`	1	y	y position in pixels (not TWIPs!)	4
`0x40000000`	2	x scale	horizontal scaling factor in percent (50 — NOT 0.5 — represents half the normal size!!!)	4
`0x40400000`	3	y scale	vertical scaling factor in percent (50 — NOT 0.5 — represents half the normal size!!!)	4
`0x40800000`	4	current frame	the very frame being played; one can query the root current frame using an empty string ("") as the name of the object; note that the first current frame is number 1 and the last is equal to the total number of frames; on the other hand, the Goto instruction expects a frame number from 0 to the number of frames - 1	4
`0x40A00000`	5	number of frames	total number of frames in movie/sprite/thread	4
`0x40C00000`	6	alpha	alpha value in percent (50 — NOT 0.5 — means half transparent)	4
`0x40E00000`	7	visibility	whether the object is visible	4
`0x41000000`	8	width	maximum width of the object (scales the object to that width)	4
`0x41100000`	9	height	maximum height of the object (scales the object to that height)	4
`0x41200000`	10	rotation	rotation angle in degrees	4
`0x41300000`	11	target	return the name (full path) of an object; this can be viewed as a reference to that object	4
`0x41400000`	12	frames loaded	number of frames already loaded	4
`0x41500000`	13	name	name of the object	4
`0x41600000`	14	drop target	object over which this object was last dropped	4
`0x41700000`	15	url	URL linked to that object	4
`0x41800000`	16	high quality	whether we are in high quality mode	4
`0x41880000`	17	show focus rectangle	whether the focus rectangle is visible	4
`0x41900000`	18	sound buffer time	position (or pointer) in the sound buffer; useful to synchronize the graphics to the music	4
`0x41980000`	19	quality	what the quality is (0 - Low, 1 - Medium or 2 - High)	5
`0x41A00000`	20	x mouse	current horizontal position of the mouse pointer within the Flash window	5
`0x41A80000`	21	y mouse	current vertical position of the mouse pointer within the Flash window	5
`0x46800000`	16384	clone	this flag has to do with the depth of sprites being duplicated	4

Push Data

Alexis Wilke — Sun, 03 Jan 2010 04:45:16 +0000

SWF Action

Action Category:

Stack

Action Details:

Action Identifier:

150

Action Structure:

struct {
	unsigned char   f_type
	<type>          f_data
} f_push_data[<variable>];

Action Length:

-1 byte(s)

Action Stack:

push <variable> (a)

Action Operation:

a₁ = f_data[0];1
push(a₁);
a₂ = f_data[1];
push(a₂);
a₃ = f_data[2];
push(a₃);
...
a_n = f_data[n];
push(a_n);

1. Notice that the first data in the action is the last accessible on your stack.

Action Flash Version:

See Also:

Duplicate

Pop

Swap

Push some immediate data on the stack. This action was introduced in V4.0. The supported data types vary depending on the version of the player you have. As many values as necessary can be pushed at once. The f_push_data structure will be repeated multiple times as required. For instance, to push two strings on the stack at once, you would use the following code:

Instance Of

Alexis Wilke — Thu, 31 Dec 2009 04:33:35 +0000

SWF Action

Action Category:

Objects

Action Details:

Action Identifier:

Action Structure:

<n.a.>

Action Length:

0 byte(s)

Action Stack:

pop 1 (s), pop 1 (o)

Action Operation:

s₁ := pop();
o₂ := pop();
r := o₂ instance of s₁;
push(r);

Action Flash Version:

See Also:

Cast Object

Extends

Implements

Type Of

Pop the name of a constructor (s₁ - ie. "Color") then an object (o₂). Checks whether the object is part of the class defined by the named constructor. If so, then true is push on the stack, otherwise false.

Since SWF version 7, it is possible to cast an object to another using the Cast Object action. This action returns a copy of the object or Null, which in many cases can be much more practical.

Get URL2

Alexis Wilke — Wed, 30 Dec 2009 03:26:54 +0000

SWF Action

Action Category:

Movie

Action Details:

Action Identifier:

154

Action Structure:

unsigned char f_method;

Action Length:

1 byte(s)

Action Stack:

pop 2 (s)

Action Operation:

s₁ := pop();
s₂ := pop();
s₁.load(s₂, f_method);

Action Flash Version:

See Also:

Duplicate Sprite

Get URL

FSCommand2

Pop two strings, the URL (s₂) and the target name (s₁).

All the usual HTML target names seem to be supported (_top, _blank, <frame name>, etc.) You can also use the special internal names _level0 to _level10. _level0 is the current movie. Other levels, I'm still not too sure how these can be used.