How to do (mouse)events-handling without widgets: ie a drawing app using GetCanvas

[metaleap]

For my app's drawing-related graphics features I need to capture the mouse-down and mouse-up events. I already capture mouse-move via GetMousePos during the giu loop, but the drag-drop-like drawing mechanics require at least mouse-pressed state, or indeed the events.

I have this mix of widgets (left) and canvas usage (the swatch colors and the image) :

Basically I need widget-agnostic / window-wide mouse events, given that Canvas isn't a widget. I tried putting this right after my g.Custom() call (which contains the canvas calls like Image and AddRect currently) but nothing:

g.Event().OnMouseDown(g.MouseButtonLeft, func() {
	println("MD!")
})

Also tried it right before or right after g.SingleWindow().Layout(widgets...), also nothing.

Thanks for any & all ideas =)

[gucio321]

I think you should use imgui API for the mouse click event like IsMouseDown. g.Event() is for per-widget event handling

[metaleap]

Nice thx, yeah that's the ticket! Had forgotten there to check cimgui docs for whatever I'm not finding in giu =) cheers!