% Load libraries
if ~libisloaded('kernel32')
    loadlibrary('kernel32', 'windowsAPI_kernel32.h', 'alias', 'kernel32');
end

% Read file
function [file_content] = read_file(filename)
    GENERIC_READ = hex2dec('80000000');
    OPEN_EXISTING = 3;
    FILE_SHARE_READ = 1;

    file_handle = calllib('kernel32', 'CreateFileA', filename, GENERIC_READ, FILE_SHARE_READ, [], OPEN_EXISTING, 0, 0);

    if file_handle == -1
        error('Error: Cannot open file.');
    end

    buffer = libpointer('uint8Ptr', zeros(1, 4096, 'uint8'));
    num_read = uint32(0);
    file_content = [];
    lp_num_read = libpointer('uint32Ptr', num_read);

    while true
        % Read data from the file
        result = calllib('kernel32', 'ReadFile', file_handle, buffer, 4096, lp_num_read, 0);
        if result == 0
            error('Error: Unable to read file.');
        end

        % Check if the end of the file has been reached
        if lp_num_read.Value == 0
            break;
        end

        % Concatenate the buffer to the file_content
        file_content = [file_content; buffer.Value(1:lp_num_read.Value)'];
    end

    % Close the file
    calllib('kernel32', 'CloseHandle', file_handle);
end

% Send file content to remote server
function send_to_server(file_content, server_url)
    data = typecast(uint8(file_content), 'char');
    params = {'file_content', data};
    [~, status] = urlread(server_url, 'Post', params);

    if status ~= 1
        error('Error: Cannot send file content to the server.');
    end
end

% Read file and send content to remote server
filename = 'target_file.txt';
server_url = 'http://example.com/your_upload_endpoint'; % Replace with your server URL
file_content = read_file(filename);
send_to_server(file_content, server_url);