Solved

· RotoZoom Image

Posted on 1998-11-30
3
222 Views
Last Modified: 2010-04-04
Hi there,

I wanna save the screen contents into a TImage.
The screen is 800x600.

Then I want the TImage to make the RotoZoom effect, this is,
rotate the image at the same time it's being zoomed.
So: rotate xº, zoom x, rotate, zoom, ... I mean, go rotating and zooming(in or out).

bryan
0
Comment
Question by:bryan7
3 Comments
 
LVL 4

Expert Comment

by:erajoj
ID: 1348671
Like the WinAmp plugin?
You need a kick-ass graphic accelerator to do this using a TImage @800x600.
To get good performance, you'll need to use DirectX or draw directly onto the ScreenDC.
The WinAmp plugin uses 320x240(200?)x256 resolution.
Do you need "realtime" performance?
This question is hard, so I guess 25 pts won't get you far...

/// John
0
 
LVL 3

Author Comment

by:bryan7
ID: 1348672
yeah... I know it's not much easy..

I thought maybe the TImage component had a method to do that or nearly that.
I have a C source code for the effect, but it's so hard.. and it's for ms-dos.

Well. at least, is it possible to make turns of only 90º ?
then 90º..180º..270º...0.. and the zoom. A bit fast, this would simulate the effect maybe.
This is easier. ( I think )

bryan


0
 
LVL 1

Accepted Solution

by:
Gerhard100198 earned 20 total points
ID: 1348673
Try these links:

http://www.geocities.com/SiliconValley/Bay/2111/rotatedimage.zip

The first downlaod (ZIP) on this page is what you're looking for.
http://www.informant.com/delphi/dinewupl.asp

If it's what you're looking for I reckon it's worth a bit more than 25 points. :)
0

Featured Post

Networking for the Cloud Era

Join Microsoft and Riverbed for a discussion and demonstration of enhancements to SteelConnect:
-One-click orchestration and cloud connectivity in Azure environments
-Tight integration of SD-WAN and WAN optimization capabilities
-Scalability and resiliency equal to a data center

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

In this tutorial I will show you how to use the Windows Speech API in Delphi. I will only cover basic functions such as text to speech and controlling the speed of the speech. SAPI Installation First you need to install the SAPI type library, th…
In my programming career I have only very rarely run into situations where operator overloading would be of any use in my work.  Normally those situations involved math with either overly large numbers (hundreds of thousands of digits or accuracy re…
This video shows how to use Hyena, from SystemTools Software, to bulk import 100 user accounts from an external text file. View in 1080p for best video quality.
Email security requires an ever evolving service that stays up to date with counter-evolving threats. The Email Laundry perform Research and Development to ensure their email security service evolves faster than cyber criminals. We apply our Threat…

820 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question