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Help => Window => Topic started by: Mr_Blame on March 02, 2015, 10:07:45 am

Title: Get pixel from window
Post by: Mr_Blame on March 02, 2015, 10:07:45 am

Exscuse me. Is there any fast way to get every the window pixel with knowledge of pixel coordinates?

Title: Re: Get pixel from window
Post by: eXpl0it3r on March 02, 2015, 10:15:13 am

"Fast" is a relative term. The only way to get a specific pixel is through sf::Image::getPixel(). To get an image instance of the window content you could draw to a render texture and then copy the texture content to an image. This procedure is however not very fast, so it really depends what you want to do.

If you just want to manipulate the pixel, you're better off using a shader, which would also be the fastest way.