Display "Hello World" Example

#include <ClanLib/core.h> #include <ClanLib/display.h> #include <ClanLib/gl.h> #include <ClanLib/application.h> using namespace clan; class DisplayProgram { public: static int main(const std::vector<std::string> &args) { SetupCore setup_core; SetupDisplay setup_display; SetupGL setup_gl; DisplayWindow window("Hello World", 640, 480); Canvas canvas(window.get_gc()); InputDevice keyboard = window.get_ic().get_keyboard(); clan::Font font(canvas, "Tahoma", 30); // The clan prefix is required on linux due to a namespace conflict while (!keyboard.get_keycode(keycode_escape)) { // Draw with the canvas: canvas.clear(Colorf::cadetblue); Draw::line(canvas, 0, 110, 640, 110, Colorf::yellow); font.draw_text(canvas, 100, 100, "Hello World!", Colorf::lightseagreen); // Draw any remaining queued-up drawing commands on canvas: canvas.flush(); // Present the frame buffer content to the user: window.flip(); // Read messages from the windowing system message queue, if any are available: KeepAlive::process(); } return 0; } }; // Create global application object: // You MUST include this line or the application start-up will fail to locate your application object. Application app(&DisplayProgram::main);