I have my current code that reads the GetPixel
from the current cursor position but the return value is just some insane value by COLORREF
and I want it to be in RGB
. I looked into Microsoft Reference and I found RGB
Macro
COLORREF RGB(
BYTE byRed,
BYTE byGreen,
BYTE byBlue
);
and my question is how should I use the return from GetPixel
into this RGB
function and then print the value?
Current code:
include <Windows.h>
include <wingdi.h>
include <iostream>
pragma comment(lib, "gdi32.lib")
int main() {
while (true) {
HDC hDC;
hDC = GetDC(NULL);
POINT p;
GetCursorPos( & p);
int cx = p.x;
int cy = p.y;
std::cout << GetPixel(hDC,cx,cy) << std::endl;
Sleep(5);
}
}
The GetPixel()
function returns a COLORREF
which you can convert to a RGB
value like this:
COLORREF color = GetPixel(hdc, x, y);
RGBTRIPLE rgb;
rgb.rgbtRed = GetRValue(color);
rgb.rgbtGreen = GetGValue(color);
rgb.rgbtBlue = GetBValue(color);