Scientific Computing

Capture screenshots in Fortran

Add screenshot and scrolling GIF capabilities to your Fortran applications with libcurl bindings. Perfect for HPC, simulations, and scientific computing.

Get API Key View Docs

Installation

1Use fortran-curl or call libcurl via ISO_C_BINDING
2Get your API key from the dashboard
3Set the X-KEY header in your requests

Authentication

Include your API key in the X-KEY header with every request:

use curl_interface
type(c_ptr) :: curl, headers

curl = curl_easy_init()
headers = curl_slist_append(headers, "X-KEY: your-api-key"//c_null_char)
call curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headers)

Fortran Screenshot Example

Capture a screenshot or create a scrolling GIF animation with a simple GET request:

Screenshot

program screenshot
    use curl
    implicit none
    type(c_ptr) :: curl_handle, headers

    curl_handle = curl_easy_init()
    headers = curl_slist_append(c_null_ptr, "X-KEY: your-api-key"//c_null_char)

    call curl_easy_setopt(curl_handle, CURLOPT_URL, &
        "https://api.scrnpix.com/screenshot?url=https%3A%2F%2Fexample.com&width=1280&height=720&format=png"//c_null_char)
    call curl_easy_setopt(curl_handle, CURLOPT_HTTPHEADER, headers)
    call curl_easy_perform(curl_handle)
    call curl_easy_cleanup(curl_handle)
end program

Animation

program animate
    use curl
    implicit none
    type(c_ptr) :: curl_handle, headers

    curl_handle = curl_easy_init()
    headers = curl_slist_append(c_null_ptr, "X-KEY: your-api-key"//c_null_char)

    call curl_easy_setopt(curl_handle, CURLOPT_URL, &
        "https://api.scrnpix.com/animate?url=https%3A%2F%2Fexample.com&scroll_duration=3000&scroll_easing=ease-in-out"//c_null_char)
    call curl_easy_setopt(curl_handle, CURLOPT_HTTPHEADER, headers)
    call curl_easy_perform(curl_handle)
    call curl_easy_cleanup(curl_handle)
end program

Response Format

On success, the API returns the image binary data directly in the response body.

Status Code	200 OK
Content-Type	image/png, image/jpeg, or image/gif
Body	Binary image data
Error Response	Error message with 4xx/5xx status

Key Features

Zero Setup

Use fortran-curl or libcurl bindings. No browser installation required on HPC clusters.

Production Ready

Built on Cloudflare Workers with global edge network. Handles concurrency and browser lifecycle automatically.

Fortran Integration

ISO_C_BINDING for native interop. Works with gfortran, ifort, or any modern Fortran compiler.

Rich Features

Custom viewport sizes, full page capture, PNG/JPEG formats, scrolling GIFs with 15 easing functions.

Frequently Asked Questions

Do I need to install browsers on HPC clusters?

No. Scrnpix runs browsers on our infrastructure. You only need HTTP client capabilities via libcurl.

Can I use this in scientific simulations?

Yes. Perfect for capturing visualization outputs, generating reports from web dashboards, or documenting simulation results.

How do I handle errors in Fortran?

Check the curl return code and HTTP response status. Use error handling with iostat or similar mechanisms.

What Fortran version is required?

Fortran 2003+ for ISO_C_BINDING support. The API is a simple HTTP GET request via libcurl.

Ready to capture screenshots in Fortran?

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