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A simple pyimgui example using the GLFW backend
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#pip install imgui[glfw] | |
import imgui | |
import glfw | |
import OpenGL.GL as gl | |
from imgui.integrations.glfw import GlfwRenderer | |
def impl_glfw_init(window_name="minimal ImGui/GLFW3 example", width=1280, height=720): | |
if not glfw.init(): | |
print("Could not initialize OpenGL context") | |
exit(1) | |
# OS X supports only forward-compatible core profiles from 3.2 | |
glfw.window_hint(glfw.CONTEXT_VERSION_MAJOR, 3) | |
glfw.window_hint(glfw.CONTEXT_VERSION_MINOR, 3) | |
glfw.window_hint(glfw.OPENGL_PROFILE, glfw.OPENGL_CORE_PROFILE) | |
glfw.window_hint(glfw.OPENGL_FORWARD_COMPAT, gl.GL_TRUE) | |
# Create a windowed mode window and its OpenGL context | |
window = glfw.create_window(int(width), int(height), window_name, None, None) | |
glfw.make_context_current(window) | |
if not window: | |
glfw.terminate() | |
print("Could not initialize Window") | |
exit(1) | |
return window | |
class GUI(object): | |
def __init__(self): | |
super().__init__() | |
self.backgroundColor = (0, 0, 0, 1) | |
self.window = impl_glfw_init() | |
gl.glClearColor(*self.backgroundColor) | |
imgui.create_context() | |
self.impl = GlfwRenderer(self.window) | |
self.string = "" | |
self.f = 0.5 | |
self.loop() | |
def loop(self): | |
while not glfw.window_should_close(self.window): | |
glfw.poll_events() | |
self.impl.process_inputs() | |
imgui.new_frame() | |
imgui.begin("Custom window", True) | |
imgui.text("Hello, world!") | |
if imgui.button("OK"): | |
print(f"String: {self.string}") | |
print(f"Float: {self.f}") | |
_, self.string = imgui.input_text("A String", self.string, 256) | |
_, self.f = imgui.slider_float("float", self.f, 0.25, 1.5) | |
imgui.show_test_window() | |
imgui.end() | |
imgui.render() | |
gl.glClearColor(*self.backgroundColor) | |
gl.glClear(gl.GL_COLOR_BUFFER_BIT) | |
self.impl.render(imgui.get_draw_data()) | |
glfw.swap_buffers(self.window) | |
self.impl.shutdown() | |
glfw.terminate() | |
if __name__ == "__main__": | |
gui = GUI() |
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Worked great!