I was able to do custom painting on the tooltip control, by disable its

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Editorial Team

Asked: June 17, 20262026-06-17T05:49:08+00:00 2026-06-17T05:49:08+00:00

I was able to do custom painting on the tooltip control, by disable its visual style.

I am curious that if we can make the tooltip control to be “Layered” (i.e transparent).

I tried to add WS_EX_LAYERED style on it and call

SetLayeredWindowAttributes(hwndTooltip, 0, 50, LWA_ALPHA);

But it doesn’t become transparent.

I did this for the manin window and the main window become transparent.

After searching, there is no further information about how to make tooltip transparent.

So How to make tooltip control transparent background?

p.s: hwndTooltip is a child of Desktop, not of main window.

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Editorial Team · Answer 1 · 2026-06-17T05:49:09+00:00

Editorial Team

Cannot be done. Reference and explanation:

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