sorry, I hate posting 2 questions about the same (or, at least, similar) topic, i thought i had my getpixel issue solved... but... I didn't
so I'm trying to use GetDIBits, since I am capable of taking an image of the Minecraft window and copying it to a clipboard sucessfully.
problem is, I don't have much of an Idea how to use GetDIBits, I have some working code written:
I just used a small image I made in ms pain as a test for now.
problem is, I can retrieve the first pixel of every scan line by editing "bm.bmHeight" but I can't figure out how to
grab the second (or third, or fourth) pixel in each scan line.
any help?
so I'm trying to use GetDIBits, since I am capable of taking an image of the Minecraft window and copying it to a clipboard sucessfully.
problem is, I don't have much of an Idea how to use GetDIBits, I have some working code written:
Code:
#include <Windows.h>
#include <iostream>
using namespace std;
int main()
{
HBITMAP hBitmap = (HBITMAP) LoadImage(0, L"C:/Foo.bmp" ,IMAGE_BITMAP, 0, 0, LR_LOADFROMFILE);
// check hBitmap for error
BITMAP bm;
::GetObject( hBitmap , sizeof(bm) , &bm );
/* Omitting error checks for brevity */
HDC dcBitmap = CreateCompatibleDC ( NULL );
SelectObject( dcBitmap, hBitmap );
BITMAPINFO bmpInfo;
bmpInfo.bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
bmpInfo.bmiHeader.biWidth = bm.bmWidth;
bmpInfo.bmiHeader.biHeight = -bm.bmHeight;
bmpInfo.bmiHeader.biPlanes = 1;
bmpInfo.bmiHeader.biBitCount = 24;
bmpInfo.bmiHeader.biCompression = BI_RGB;
bmpInfo.bmiHeader.biSizeImage = 0;
COLORREF* pixel = new COLORREF [ bm.bmWidth * bm.bmHeight ];
GetDIBits( dcBitmap , hBitmap , 0 , bm.bmHeight , pixel , &bmpInfo , DIB_RGB_COLORS );
int r = GetRValue ( *pixel );
int g = GetGValue ( *pixel );
int b = GetBValue ( *pixel );
cout << r << " " << g << " " << b << endl;
bm.bmHeight = bm.bmHeight - 1;
GetDIBits( dcBitmap , hBitmap , 0 , bm.bmHeight , pixel , &bmpInfo , DIB_RGB_COLORS );
r = GetRValue ( *pixel );
g = GetGValue ( *pixel );
b = GetBValue ( *pixel );
cout << r << " " << g << " " << b << endl;
cin.get();
return 0;
}I just used a small image I made in ms pain as a test for now.
problem is, I can retrieve the first pixel of every scan line by editing "bm.bmHeight" but I can't figure out how to
grab the second (or third, or fourth) pixel in each scan line.
any help?