I am using WINCE5.0 and EVC4.0 as my development software. How can I achieve image fade in and fade out? EVC4.0 does not support the function AlphaBlen.

mdjwmy

I am using WINCE5.0 and EVC4.0 as my development software. How can I achieve image fade in and fade out? EVC4.0 does not support the function AlphaBlen. [Copy link]

As title

bdywsled

Bang Ding.

xboy3721

LZ can give up now, it's basically impossible to achieve

maidi0018

Following

cjp0604

Write your own algorithm, or search directly on the Internet~ Here's an idea for you: Fade-in and fade-out effects (or other effects such as rotation, blinds, raindrops, etc.) are nothing more than operating the background and foreground images~ 1. First get the foreground and background bitmap data CreateDIBSection 2. Perform algorithmic processing on the two bitmap buffer data, ForBuff, BackBuff, and then get a new bitmap NewBuff 3. Fade-in and fade-out effect definitions, such as 10%, 20%, 40%, 60%, 80%, 100% (relative to foreground) 4. NewBuff.RGB.R = ForBuff.RGB.R*(10%) + BackBuff.RGB.R*(90%); .... 5. BitBlt NewBuff

erxu

It is not possible to achieve this kind of gradient effect with EVC4 using GDI. However, the effects of blinds, raindrops, and sliding windows can still be achieved. For example: [url=http://www.evccode.com/ch/ProductView.asp?ID=6][/url] Fade-in and fade-out can also be achieved by using third-party libraries such as GAPI or OpenGL ES. (This is achievable, but the libraries are not free at present.)