Let me now demonstrate scripts for masking your display objects. You can use a display object as a mask to create a hole through which the content of another display object is visible. Here I have a mask that corresponds to this circle. It's invisible here on the original Stage. I have a picture behind it and I'm creating a mask with ActionScript that then punches a hole through the circle showing the picture underneath it and the rest of the picture is masked, that's why this effect is called Masking. Let's go ahead and look at the script here. To indicate that a display object will be the mask for another display object set the mask object as the mask property of the display object to be masked. I do that with this here, the mask will be the myShape shape here. It's going to be masking this movie clip, the palmtree movie clip, which is this photo. I'm creating a new shape, it's going to be a graphic shape here, beginFill with this color right there and then I'm going to draw a circle with these dimensions right there and I'm going to basically make that invisible by creating a mask or converting it into a mask with this line right here. Now the mask display object, in this case the picture, is revealed under all of the opaque or nontransparent areas of the display object. In this case the entire object is opaque. Here's another example. If you open up the masking2 file, it's blank, but in this file I'm going to be creating a shape instance. Let's mov this up here, open this up a little bit, so I'll be drawing a red square and adding it to the display list. This will be a 100 by 100 pixel square and a sprite instance containing a blue circle with a radius of 25 pixels. Go ahead and have a look at this movie. There is the red square and the blue circle created by those two paragraphs of text using the graphics method - lineStyle, beginFill, drawRectangle, so there's the rectangle command. Here is the drawCircle command with all of its parameters, the colors. Notice that I'm adding the child square to the stage with this last line right here. Now in this case when the blue circle is clicked it's set as the mask for the square so that only part of the square that shows through the circle will show through. If I go ahead and click on the blue circle you'll see that the square underneath it, notice the square underneath it is red so I get a red circle popping on top there. Let's have a look at the code that created that effect down here. I'm running a function when the MouseEvent is detected on that circle. Here I'm creating the circle as a mask and the mask object is the square right there. Here's my EventListener, circle, when the circle button is clicked, right here, it's going to run the maskSquare function, this one here, and that last line here will remove the circle, as part of this function, the maskSquare function. Now the display object that is acting as a mask can be draggable, animated, resized dynamically. It can use separate shapes within a single mask. The mask's display object doesn't necessarily have to be added to the display list, however, if you want the mask object to scale when the Stage is scaled, or if you want to enable user interaction with the mask such as a user controlled dragging and resizing, then the mask object must be added to the display list. In this example I added both these shapes to the display list using the addChild method. Now the actual Z index, this is the front to back order of the display objects, really doesn't matter as long as the mask object is added to the display list. Notice that the mask object does not appear on the screen except as a mask. Now you'll notice that when I do the Control, Test Movie again that the mask object does not appear on the screen once it's been set up as a mask, in other words right now this blue circle isn't the mask, but as soon as I click on it, it becomes the mask and so it disappears. Now if this mask object is a movie clip instance with multiple frames it'll play all the frames in its timeline the same as it would if it were not serving as a mask. You can remove a mask by setting the mask property to null as this code will do right here: mySprite.mask equals null. If we put this script to work here in our first masking example, let's change the mySprite to myShape, since that's the name of the mask that I've set up here in line 5 and if we execute the code notice the mask is no longer working and we can now see the blue circle placed on top of the photo. Other details I should cover is you cannot use a mask to mask another mask. You cannot set the alpha property of a mask display object and only fills are used in a display object that is used as a mask. Strokes will be ignored. You can also use a display object to mask text that is set in a device font. When you use a display object to mask text set in a device font the rectangular bounding box of the mask is used as the masking shape, that is, if you create a nonrectangular display object mask for a device font text the mask that appears in the SWF file will be the shape of the rectangular bounding box of the mask, not the shape of the mask itself. Let's now move on to the next movie so I can demonstrate scripts for replacing your mouse pointer with a graphic of your own to, in essence, create a custom mouse pointer.
|Course:||Adobe Flash ActionScript 3.0 for Designers|
|Duration:||9.5 hrs / 101 lessons|
|Captions:||Available on CD and Online University|
WIN XP SP3, OS X 6+, Android 4, iOS 4, Linux
TERMS & CONDITIONS OF USE
BY SUBSCRIBING TO THIS SERVICE, YOU ARE CONSENTING TO BE BOUND BY AND ARE BECOMING A PARTY TO THIS AGREEMENT, THE TERMS AND CONDITIONS OF WHICH SHALL PREVAIL IN GOVERNING YOUR RIGHTS OF USE. BY CLICKING THE "BECOME A MEMBER" BUTTON, THE INDIVIDUAL OR ENTITY LICENSING THE PRODUCT ("YOU") IS CONSENTING TO BE BOUND BY AND IS BECOMING A PARTY TO THIS AGREEMENT. IF LICENSEE DOES NOT AGREE TO ALL OF THE TERMS OF THIS AGREEMENT, THE BUTTON INDICATING "BECOME A MEMBER" MUST NOT BE SELECTED, AND LICENSEE MUST NOT INSTALL OR USE THE SOFTWARE.
"VTC" refers to Virtual Training Company,
"You" refers to the user or subscriber.
"Software" refers to the VTC training content and software.
2. LICENSE: VTC hereby grants to You a worldwide, non-royalty bearing, non-exclusive license to use the Software according to the provisions contained herein and subject to payment of the applicable subscription fees.
3. RESTRICTIONS: You may not do any of the following:
Save the Software to Your hard disk or other storage
medium; permit others to use the Software except as specified by addendum;
modify, reverse engineer, decompile, or disassemble the Software; make
derivative works based on the Software; publish or otherwise disseminate
the Software. VTC, Inc., VTC Online University, and the Virtual Training
Company site is owned and operated by VTC, Inc. as a corporation of
All materials on this site are the property of VTC unless otherwise specified. No material from these pages may be copied, reproduced, republished, downloaded, uploaded, posted, transmitted, or distributed in any way. Modification of the materials or use of the materials for any other purpose is a violation of U.S. copyright law and other proprietary rights. For purposes of this Agreement, the use of any such material on any other web site or networked computer environment is prohibited.
4. FEES: The rights granted under this Agreement
are effective only upon payment of the subscription fees, which are
strictly non-refundable other than as expressly provided herein. The
term "monthly subscription" is defined as any 30 day period.
The term "yearly subscription" is defined as one 365 day
period. A yearly subscription ends on the same numerical date as it
began (example July 28, 2004 to July 28, 2005).
The VTC Online University is access to every VTC training tutorial in our library. You pay a flat fee for access to these titles. You are billed according to your renewal selection below, and can renew monthly, yearly, or in any other increment offered. If you choose to be billed monthly, you will be billed every 30 days for the subscription until you request the subscription be cancelled. Our terms of service state that you must cancel a monthly subscription at least two business days before your renewal date. These two days give us enough time to ensure that you will not be charged again.
5. LIMITED WARRANTY: VTC warrants that the Software, if operated as directed, will substantially achieve the functionality described. VTC does not warrant, however, that Your use of the Software will be uninterrupted or that the operation of the Software will be error-free or secure. In addition, the security mechanisms implemented by the Software have inherent limitations, and You must determine that the Software sufficiently meets Your requirements. VTC also warrants that the media containing the Software, if provided by VTC, is free from defects in material from the date You acquired the Software. VTC's sole liability for any breach of this warranty shall be, in VTC's sole discretion: (i) to replace Your defective media or Software; or (ii) to advise You how to achieve substantially the same functionality with the Software as described; or (iii) if the above remedies are impracticable, to refund the subscription fee You paid for the Software. Only if You inform VTC of Your problem with the Software during the applicable subscription period will VTC be obligated to honor this warranty. VTC will use reasonable commercial efforts to repair, replace, advise, or refund pursuant to the foregoing warranty within thirty (30) days of being so notified. If any modifications are made to the Software by You during the warranty period; if the medium is subjected to accident, abuse, or improper use; or if You violate the terms of this Agreement, then this warranty shall immediately terminate. This warranty shall not apply if the Software is used on or in conjunction with hardware or software other than the unmodified version of hardware and software with which the Software was designed to be used as described.
THIS IS A LIMITED WARRANTY, AND IT IS THE ONLY WARRANTY MADE BY VTC OR ITS SUPPLIERS. VTC MAKES NO OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NONINFRINGEMENT OF THIRD PARTIES' RIGHTS. YOU MAY HAVE OTHER STATUTORY RIGHTS. HOWEVER, TO THE FULL EXTENT PERMITTED BY LAW, THE DURATION OF STATUTORILY REQUIRED WARRANTIES, IF ANY, SHALL BE LIMITED TO THE ABOVE LIMITED WARRANTY PERIOD. MOREOVER, IN NO EVENT WILL WARRANTIES PROVIDED BY LAW, IF ANY, APPLY UNLESS THEY ARE REQUIRED TO APPLY BY STATUTE NOTWITHSTANDING THEIR EXCLUSION BY CONTRACT. NO DEALER, AGENT, OR EMPLOYEE OF VTC IS AUTHORIZED TO MAKE ANY MODIFICATIONS, EXTENSIONS, OR ADDITIONS TO THIS LIMITED WARRANTY.
6. PROPRIETARY RIGHTS: VTC reserves all proprietary rights in and to the Software, is protected by copyright and other intellectual property laws and by international treaties. VTC, Inc.
Trademark Notice: VTC, Virtual Training Company,
Inc., The VTC Logo, and VTC Online University, are trademarks of VTC,
Inc. All other company and product names may be trademarks of their
The information contained herein is subject to change without notice. Copyright © 1995 - 2005 VTC, Inc. All rights reserved.
7. TERMINATION: This Agreement shall automatically terminate if You fail to comply with the restrictions described herein. Your obligations to pay outstanding subscription fees shall survive any termination of this Agreement.
8. LIMITATION OF LIABILITY: UNDER NO CIRCUMSTANCES
AND UNDER NO LEGAL THEORY, TORT, CONTRACT, OR OTHERWISE, SHALL VTC
OR ITS SUPPLIERS OR RESELLERS BE LIABLE TO YOU OR ANY OTHER PERSON
FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES OF
ANY CHARACTER, INCLUDING WITHOUT LIMITATION, DAMAGES FOR LOSS OF GOODWILL,
WORK STOPPAGE, COMPUTER FAILURE OR MALFUNCTION, OR ANY AND ALL OTHER
COMMERCIAL DAMAGES OR LOSSES. IN NO EVENT WILL VTC BE LIABLE FOR ANY
DAMAGES IN EXCESS OF THE AMOUNT VTC RECEIVED FROM YOU FOR A LICENSE
TO THE SOFTWARE, EVEN IF VTC SHALL HAVE BEEN INFORMED OF THE POSSIBILITY
DAMAGES, OR FOR ANY CLAIM BY ANY OTHER PARTY. THIS LIMITATION OF LIABILITY SHALL NOT APPLY TO LIABILITY FOR DEATH OR PERSONAL INJURY RESULTING FROM VTC'S NEGLIGENCE TO THE EXTENT APPLICABLE LAW PROHIBITS SUCH LIMITATION. SOME JURISDICTIONS DO NOT ALLOW THE EXCLUSION OR LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO THIS EXCLUSION AND LIMITATION MAY NOT APPLY TO YOU.
9. Links To Other Materials: Linked sites found at the VTC site are not under the control of VTC, and we are not responsible for the content of any linked site or any link contained in a linked site. VTC may change links based solely on our discretion, and we reserve the right to terminate any link or linking program at any time. VTC does not, by linking to sites, endorse companies or products to which it links and reserves the right to note as such on its web pages. If you decide to access any of the third party sites linked to this site, you do this entirely at your own risk.
Forums, and Chat are not always screened by VTC, and we are not responsible for the content of any public or open forum content at the site. VTC may change these public forums based solely on our discretion, and we reserve the right to terminate any forum at any time. VTC does not, by allowing these forums, endorse companies or products which may be mentioned in these forums, and reserves the right to note as such on its web pages. If you decide to access any of the public forums in this site, or linked to this site, you do this entirely at your own risk.
9. GOVERNING LAW & DISPUTE RESOLUTION: This Agreement is governed by Virginia law. All disputes between You and VTC shall be finally resolved through arbitration in Winchester, Virginia. This site is controlled by VTC from its offices within the United States of America. VTC makes no representation that materials in the site are appropriate or available for use in other locations, and access to them from territories where their content is illegal is prohibited. Those who choose to access this site from other locations do so on their own initiative and are responsible for compliance with applicable local laws. You may not use or export the Materials in violation of U.S. export laws and regulations. Any claim relating to the Materials shall be governed by the internal substantive laws of the Commonwealth of Virginia, USA.
VTC may revise these Terms at any time by updating this posting. You should visit this page from time to time to review the then-current Terms because they are binding on you. Certain provisions of these Terms may be superseded by expressly designated legal notices or terms located on particular pages at this Site.
If you have any questions regarding this policy,
or your information specifically,
you may email us at:firstname.lastname@example.org.