Questions tagged [getpixel]

GetPixel is a Windows GDI API function which retrieves the RGB color value of the pixel at a specific coordinates.

199 questions
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Why it turns out that "pix1 is not defined"?

My code is going like this: function printPixel(nameImage, xpos, ypos) { var someImg = new SimpleImage(nameImage); var pix1 = someImg.getPixel(xpos,ypos); return pix1.getRed(); } console.log(pix1) printPixel("drewgreen.png",10,…
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can't get getpixel from HWND

I am trying to get pixel color from hwnd but it doesn't work When I put "GetDC(NULL)" It worked but "GetDC(hwnd_child)" is always 255,255,255. please help #include #include using namespace std; int main() { POINT pos; …
ngmany
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(C++) How to use GetPixel() of x y on screen

Could someone make some code that gets the pixel of an x y coord on screen and explain how the code works. I have read other examples but I dont know what all the functions and code do. Thanks.
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What is the color white returned from the GetPixel() method?

What is the RBG value of the color white returned from the GetPixel() method? Is it (255, 255, 255) or (0, 0, 0)?
Payam Hesami
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