Reassign new hex value into Uint32 *

Question

I have the following code snippet which reads the pixel value in hex format.

Uint32* MyPixel = pixels + ( (iH-1) + image->w ) + iW;
printf("\npixelvalue is  is : %x",*MyPixel);

How can I reassign a new hex value into the *MyPixel cause I tried this does not work.

*MyPixel = "00FF00"; 

Answer 1

"00FF00" is a string literal. You need a hex integer literal:

*MyPixel = 0x00FF00;

Prefix 0x tells the compiler that the rest of the numeric literal needs to be interpreted as a numeric hex constant.