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Author Topic: Masked Color?  (Read 2361 times)

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ShadowDancer

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Masked Color?
« on: October 24, 2009, 04:52:19 pm »
What will be color of masked image?
I have image as button, and i want to decect when user click, but image have some masked parts. I tried with GetPixel, but it return hmm impossible values(at start it's 3,0,3,0. and r and b values increasing over time). Anyway to solve it?
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Laurent

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Masked Color?
« Reply #1 on: October 24, 2009, 05:51:53 pm »
A transparent pixel will have its alpha value to 0 (for complete transparency).
Code: [Select]
bool inside = sprite.GetPixel(x, y).a > 0;
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Laurent Gomila - SFML developer

ShadowDancer

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Masked Color?
« Reply #2 on: October 24, 2009, 06:05:57 pm »
Ach, true. I switched 0 as full visible and 255 as no visible.
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