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I need to draw an animation (let's say a GIF) on desktop. So, I need a function that draws on desktop, behind the desktop icons. The main requirement is that the painting should be done flickerles UNDER the desktop icons.
These are the requirements:
* The painting should be under desktop icons
* Should work with modern operating systems (Win XP and up). On Win 7 it should work also when Aero themes are enabled.
* Do not use DirectX (if you want to use DirectX/DirectDraw, please inform me first to approve it)
* Do not use ActiveDesktop
* Flickerless. The desktop/icons should not flicker. The animation/video should plays smoothly at a minimum 30 fps
* The program should not hinder other applications or the usual way in which the user interacts with the desktop.
The code for XP is not difficult. You can find it on internet. The problem is Win 7. Microsoft changed desktop's structure in Win 7.
As an example, here is a program that already does what I want: www . desktopanimated .com.
Maybe you can use WinDoze or ApiMonitor to see how they are doing it.
* Delphi XE source code
* Some documentation
* A very small application (and source code) that demonstrates that the function works. Nothing fancy. It should paint a series of 3-4 BMPs to simulate the animation.
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