What languages and technologies should I use for the following task? I need to place an image over all the other windows and change that image sometimes. (Sorry for poor eng. language)
Any UI technologies that allows you drawing topmost transparent window.
From Windows API:
See WS_EX_LAYERED
/ SetLayeredWindowAttributes
/ UpdateLayeredWindow
to draw transparent window
See WS_EX_TOPMOST
to draw topmost window.
The UI framework you use might incapsulate these APIs with its own mechanisms.
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