MACROMEDIA FLASH 8-USING FLASH Use Manual page 153

To turn pixel snapping on or off temporarily:
Press the C key.
When you release the C key, pixel snapping returns to the state you selected with View >
Snapping > Snap to Pixels.
To temporarily hide the pixel grid:
Press the X key.
When you release the X key, the pixel grid reappears.
Snap alignment
You can turn on Snap Alignment using the Snap Align command in the View menu. You can
select settings for Snap Alignment using the Edit Snap Align command in the View menu.
When you select Snap Alignment settings, you can set the snap tolerance between horizontal
or vertical edges of objects, and between objects' edges and the Stage border. You can also turn
on snap alignment between the horizontal and the vertical centers of objects. All Snap
Alignment settings are measured in pixels.
When Snap Alignment is turned on, dotted lines appear on the Stage when you drag an object
to the specified snap tolerance. For example, if you set Horizontal snap tolerance to 18 pixels
(the default setting), a dotted line appears along the edge of the object you are dragging when
the object is exactly 18 pixels from another object. If you turn on Horizontal Center
Alignment, a dotted line appears along the horizontal center vertices of two objects when you
precisely align the vertices.
To select settings for Snap Alignment:
1. Select View > Snapping > Edit Snap Align.
2. In the Snap Align dialog box, do any of the following:
To set the snap tolerance between objects and the Stage border, enter a value for
Movie Border.
To set the snap tolerance between horizontal or vertical edges of objects, enter a value
for Horizontal, Vertical, or both.
To turn on Horizontal or Vertical Center Alignment, select Horizontal or Vertical
Center Alignment or both.
To turn on Snap Alignment:
Select Snapping > Snap Align.
Snapping 153