I have started using the imgui system for visualizing "whatever". I am in my first few hours, and am running up against what seem to be common snags.
However, although I can see some pretty good support for the C++ versions of ImGui (which I'll transition to eventually), the python imgui content is mostly obscured.
What I am looking for is the solution to the following problem:
while not glfw.window_should_close(window):
...
imgui.new_frame()
imgui.begin("foo-window", closable=True)
imgui.end()
Everything works fine. However, the window doesn't close. I understand that the window doesn't close because it is always created every loop.
What I am looking for is:
How do I detect and identify that the particular window has been closed, and block it from being re-generated?
JerryWebOS's answer is basically correct, but to add to that here's the python version. Note that the documentation for pyimgui is a good source to find answers to questions like this one.
https://pyimgui.readthedocs.io/en/latest/reference/imgui.core.html?highlight=begin#imgui.core.begin
imgui.begin() returns a tuple of two bools: (expanded, opened). You can use this to detect when the user closes the window, and skip rendering the window in the next frames accordingly:
window_is_open = True
while not glfw.window_should_close(window):
...
imgui.new_frame()
if window_is_open:
_, window_is_open = imgui.begin("foo-window", closable=True)
...
imgui.end()