CODEWITHSUNDEEP
c++visual-c++
user3861918
user3861918

Reputation:

how to add a .hpp file in visual studio c++

i am trying to add a Bitmap Library to visual studio 2015 when i added header file

#include "bitmap_image.hpp"

underneath the header file a red line and it showing "cannot open source file" in the error window i am attaching a link to website i tried this way but its not help - > https://stackoverflow.com/questions/27466571/add-hpp-file-type-to-visual-studio#

library link http://www.partow.net/programming/bitmap/index.html

#include <cmath>
#include <cstdio>
#include <cstdlib>
#include <iostream>
#include <string>
#include "bitmap_image.hpp"

int main(){
    

bitmap_image image("input.bmp");

if (!image)
{
    printf("Error - Failed to open: input.bmp\n");
    return 1;
}

unsigned int total_number_of_pixels = 0;

const unsigned int height = image.height();
const unsigned int width = image.width();

for (std::size_t y = 0; y < height; ++y)
{
    for (std::size_t x = 0; x < width; ++x)
    {
        rgb_t colour;

        image.get_pixel(x, y, colour);

        if (colour.red >= 111)
            total_number_of_pixels++;
    }
}

printf("Number of pixels with red >= 111: %d\n", total_number_of_pixels);

return 0;
}

header is too large i can't paste it here its in the link

Upvotes: 12

Views: 1491

Answers (2)

Kamel O.L.
Kamel O.L.

Reputation: 38

If Visual Studio shows "cannot open source file" for bitmap_image.hpp (denoted by the red squiggles) , it usually means the file can't be found. Make sure bitmap_image.hpp is in your project directory or a folder included in the project.

To resolve this, I'd recommend to create a folder called external (or similar) in your project and place the bitmap folder inside.

Then, add the external folder to your project's include path in Project Properties > Configuration Properties > C/C++ > General > Additional Include Directories.

Your setup should look like this

MyProject/
├── external/
│   └── bitmap/
│       └── bitmap_image.hpp
├── src/
│   └── main.cpp

With this setup, include the file like this:

#include "bitmap/bitmap_image.hpp"

Alternatively, if you add the bitmap folder directly to the include path

MyProject/
├── bitmap/
│   └── bitmap_image.hpp
├── src/
│   └── main.cpp

use:

#include "bitmap_image.hpp"

Upvotes: 0

Nick Pap
Nick Pap

Reputation: 1

To do so you have to click

  1. Import
  2. Choose your file and you are done

Upvotes: -1

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