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09.01.2005 at 11:55PM PDT, ID: 21548686
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9.4

Finding an RGB value of pixel on screen.

Asked by SeriousMite in Microsoft Visual C++.Net

Tags: ,

I've been trying to figure this out and well the MSDN library just doesn't seem to help me enough to do it. Which can be found here

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vclib/html/_mfc_cdc.3a3a.getpixel.asp

Could anyone show me what went wrong here?  I'm sure its something obvious as i'm still quite the novice :(  Oh and i'm trying to get the pixel color of whatever is being shown on my screen, NOT a bitmap.


#include <iostream>
#include <stdlib.h>
#include <afxwin.h>

using namespace std;
using namespace CDC;


int main()
{
    int x = 500;
    int y = 600;
   
   
    int myColor = GetPixel(x, y); //Grab the pixel colors from my x, y coordinates
   
    int redColor   = (int) GetRValue(myColor);
    int greenColor = (int) GetGValue(myColor);
    int blueColor  = (int) GetBValue(myColor);

     cout << "My color at " << x << ", " << y << " is: " << endl;
     cout << " Red Value: "     << redColor << endl;
     cout << " Green Value: " << greenColor << endl;
     cout << " Blue Value: "     << blueColor << endl;
   
   
    return 0;
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[+][-]09.02.2005 at 02:45AM PDT, ID: 14808685

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About this solution

Zone: Microsoft Visual C++.Net
Tags: pixel, rgb
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Solution Provided By: AlexFM
Participating Experts: 1
Solution Grade: A
 
 
[+][-]09.02.2005 at 02:19PM PDT, ID: 14813640

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[+][-]09.02.2005 at 10:43PM PDT, ID: 14815054

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[+][-]09.02.2005 at 11:54PM PDT, ID: 14815177

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[+][-]09.02.2005 at 11:58PM PDT, ID: 14815188

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[+][-]09.03.2005 at 12:27AM PDT, ID: 14815289

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