Conversion between a color value and a hexadecimal string in C + +

In C + +, color values are typically represented by a uint (unsigned integer), but when the color is saved as text (JSON or XML), it is generally used in hexadecimal notation, i.e., the 0xff0000 style,

So what should I do when I read the color? You can refer to the following code:

[CPP]View Plaincopy

2. #include <stdio.h>
4. int main ()
6. {
8. char szvalue[] = "0xff0000";
10. Char ch[32];
12. int nvalude = 0;
14. SSCANF (Szvalue,"%x", &nvalude); //16 in-turn digital
16. sprintf (CH,"%d", nvalude); //numeric to character
18. printf ("%d/n", nvalude);
20. return 0;
22. }

Conversion between a color value and a hexadecimal string in C + +