private: System::Void Button1_Click(System::Object^ sender, System::EventArgs^ e) {
            int coords[2][4];
            array<System::String^>^ lines = gcnew array<System::String^>(7);

            openFile(lines);
            //if не пустой
            parseFile(lines, coords);
            drawLines(coords);
        }

        void drawLines(int coords[][4]) {
            Graphics^ g;
            g = pictureBox1->CreateGraphics();
            g->DrawLine(System::Drawing::Pens::Green, coords[0][0], coords[0][1], coords[0][2], coords[0][3]);
            g->DrawLine(System::Drawing::Pens::Green, coords[1][0], coords[1][1], coords[1][2], coords[1][3]);
        }

        void openFile(array<System::String^>^ lines) {
            int i = 0;

            OpenFileDialog^ openFileDialog1 = gcnew OpenFileDialog;

            openFileDialog1->InitialDirectory = "c:\\";
            openFileDialog1->Filter = "txt files (*.txt)|*.txt|All files (*.*)|*.*";
            openFileDialog1->FilterIndex = 2;
            openFileDialog1->RestoreDirectory = true;

            if (openFileDialog1->ShowDialog() == System::Windows::Forms::DialogResult::OK)
            {
                StreamReader^ sr = gcnew StreamReader(openFileDialog1->FileName);

                try
                {
                    String^ line;
                    while (line = sr->ReadLine())
                    {
                        try {
                            lines[i] = line;
                            i++;
                        }
                        catch (IndexOutOfRangeException^ e) {
                            textBox1->Text = "Ошибка";
                        }
                    }
                }
                finally
                {
                    if (sr)
                        delete (IDisposable^)sr;
                }
            }
        }

        int* parseFile(array<System::String^>^ lines, int coords[][4]) {
            try {
                bool flag = false;
                String^ line = "Line[1-2]{1}";
                String^ coord = "[0-9]{1,5}[ ][0-9]{1,5}";


                if (!Regex::IsMatch(lines[0], line, RegexOptions::IgnoreCase)) {
                    throw 0;
                }
                if (!Regex::IsMatch(lines[1], coord, RegexOptions::IgnoreCase)) {
                    throw 1;
                }
                if (!Regex::IsMatch(lines[2], coord, RegexOptions::IgnoreCase)) {
                    throw 2;
                }
                if (!Regex::IsMatch(lines[4], line, RegexOptions::IgnoreCase)) {
                    throw 4;
                }
                if (!Regex::IsMatch(lines[5], coord, RegexOptions::IgnoreCase)) {
                    throw 5;
                }
                if (!Regex::IsMatch(lines[6], coord, RegexOptions::IgnoreCase)) {
                    throw 6;
                }

                coords[0][0] = int::Parse(lines[1]->Split(' ')[0]);
                coords[0][1] = int::Parse(lines[1]->Split(' ')[1]);

                coords[1][0] = int::Parse(lines[2]->Split(' ')[0]);
                coords[1][1] = int::Parse(lines[2]->Split(' ')[1]);

                coords[2][0] = int::Parse(lines[5]->Split(' ')[0]);
                coords[2][1] = int::Parse(lines[5]->Split(' ')[1]);

                coords[3][0] = int::Parse(lines[6]->Split(' ')[0]);
                coords[3][1] = int::Parse(lines[6]->Split(' ')[1]);

            }
            catch (int i) {
                textBox1->Text = "Ошибка в строке " + (i + 1).ToString();
            }
        }