Пример использования библиотеки на классах C++. Совмещенный с использованием стандартного win32api

#include <SWL.h>

#include <Commdlg.h>
#include <fileapi.h>

int main()
{
	sw::Vector2u win_size(900, 500);
	sw::Vector2i win_locate(600, 300);
	std::string win_title = "My title";
	sw::Font font = sw::Font(20, 400, "Courier New");

	sw::Window window = sw::Window(win_locate, win_size, win_title);
	
	int click_count = 0;
	sw::Widget btn_clear = sw::Widget(font, sw::WidgetType::Button, sw::Vector2u(200, 50), sw::Vector2u(win_size.x - 400, win_size.y - 180), "clear");
	window.add(btn_clear);

	sw::Widget btn_save = sw::Widget(font, sw::WidgetType::Button, sw::Vector2u(200, 50), sw::Vector2u(200, win_size.y - 180), "save");
	window.add(btn_save);

	sw::Widget label = sw::Widget(sw::Font(sw::TextAlign::Center, 35, 700, false, false, false, "Arial"), sw::WidgetType::Label, sw::Vector2u(win_size.x, 45), sw::Vector2u(0, 20), "It's my Blacknote, on SWM");
	window.add(label);

	sw::Widget text_field = sw::Widget(font, sw::WidgetType::TextField, sw::Vector2u(500, 200), sw::Vector2u(win_size.x / 2 - 250, 80), "Redact me");
	window.add(text_field);

	// BLOCK::WINAPI
	char filename[256] = "myNote.txt";
	OPENFILENAMEA ofn;
	ZeroMemory(&ofn, sizeof(ofn));
	ofn.lStructSize = sizeof(ofn);
	ofn.hwndOwner = window.getHandle();
	ofn.lpstrFile = filename;
	ofn.nMaxFile = sizeof(filename);
	ofn.lpstrFilter = ".txt";
	ofn.lpstrTitle = NULL;
	ofn.lpstrInitialDir = NULL;
	ofn.Flags = OFN_PATHMUSTEXIST | OFN_FILEMUSTEXIST;
	// ENDBLOCK::WIN32API

	while (window.isOpen())
	{
		sw::Event event;
		while (window.pollEvent(event))
		{
			switch (event.type)
			{
			case sw::Event::Closed:
				window.close();
				break;
			case sw::Event::KeyPressed:
				std::cout << char(event.key.code)<< "\n";
				break;
			case sw::Event::MouseMoved:
				//std::cout << "mouse move " << event.mouseMove.x << " : " << event.mouseMove.y << "\n";
				break;
			case sw::Event::MouseButtonPressed:
				std::cout << "mouse pressed " << event.mouseClick.x << " : " << event.mouseClick.y << "\n";
				break;
			case sw::Event::MouseWheelScrolled:
				std::cout << "wheel " << event.mouseScroll.z << "\n";
				break;
			case sw::Event::MouseEntereOrLeft:
				std::cout << "left | entered\n";
				break;
			case sw::Event::ButtonClick:
				if (btn_clear.isClicked(event))
				{
					text_field.setText("");
				}
				if (btn_save.isClicked(event))
				{
					if (GetSaveFileNameA(&ofn)) // win32api func
					{
						FILE* fileOut = fopen(&filename[0], "w");	// Path shouldn't have russian letters
						fprintf(fileOut, &text_field.getText(1000)[0]);
						fclose(fileOut);
					}
				}
				break;
			default:
				break;
			}
		}
	}
}