Flash MX includes numerous functions that take advantage of the mouse.
While not all of the mouse functions will be covered in this article, I will
try to explain a majority of them.
Here it goes:
- Hiding the Mouse
There may be times when you don't want the mouse cursor visible on your
screen. To hide the mouse, simply add the following line of code to a movie,
frame, or button:
If possible, do try to not hide the mouse cursor. While you
may have a cooler mouse pointer created in Flash for your animation, it is bad
design to hide the mouse cursor - almost as bad as an unwanted pop-up.
- Showing the Mouse
By default, the cursor will be visible over your animation. If you want to
display the mouse cursor that you may have hidden from view (see above step),
use the following code:
- Getting X and Y Mouse Values
The x and y positions of the mouse are basically numbers. The numbers can be
accessed and manipulated by using the mouse pointer's position properties:
_xmouse and _ymouse.
In the above code, xval gets the x position of the mouse
while yval gets the y position of the mouse. It is best to
place this code in the onClipEvent(enterFrame)
or onClipEvent(mouseMove) handler to
ensure the data gets updated continuously with the latest
- mouseDown, mouseUp, mouseMove
In most animations, the event handlers you will use are onLoad, onEnterFrame,
release, etc. But, did you know you can execute actions only when the mouse is
pressed, when the mouse is released, and when the mouse is moved?
For an example of this, copy and paste the following code into the actions for
a movie clip and press Ctrl + Enter:
Notice how the Output window displays some text only when you
move the mouse,
when you press the mouse button, and when you release the mouse button.
This is really useful if you don't want to use an enterFrame
event handler to execute actions relative to mouse position - especially if
the mouse hasn't been clicked or won't be accessed continuously.
I hope you find the information to be useful. Many of the
tutorials on the site and numerous special effects make good use of the mouse.
Hopefully this tutorial helps you to understand more about using the mouse and
its properties in Flash.
Click on the following link to download the source file for
the animation you saw earlier toward the top of the page.
If you have a question about this or any other topic, the easiest thing is to drop by our forums where a bunch of the friendliest people you'll ever run into will be happy to help you out!
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