Woking With BMP File in C++, Ubuntu

I am trying to work with a bmp file in linux with g++ compiler. I am using C++ language.

I Need to load a .bmp file from the standard input. for example:

./a.out < test.bmp

So I need a Code to do this job. I think storing the whole .bmp file is good by I don’t know how to do this.

I Tried this code but it didn’t Work:

vector<int> bitmap;
int b;
while ( cin >> b ) {
    bitmap.push_back(b);
    cout << "!" << endl;
}

So How should I Do this?

Answer

I Found an answer That Works Correctly. This Code Reads The bmp_info_header from the *.bmp file from the standard input:

char bmpHeader[54];
cin.get(bmpHeader, 54);

the “54” in cin.get() tells the system to accept the max 54 numbers from the input and ignores the other.

now for example if we want to find the *.bmp size we should use this code:

int filesize = *((int*)(headers + 2));