How to call gdextension method in gdscript?

[nowins15]

Godot Version

4.2.2

Question

I have successfully built my GDextension module and am able to add my custom node to a godot project. The problem I’m encountering occurs when I try to call any of the public methods I have bound and exposed to the inspector.

When I right click my node and view the documentation I can see the binded methods, so I’m pretty sure I have exposed them correctly.

However, when I try to call one of these methods using self.calibrate_camera(img_dir) with a script attached to my custom node I get the error “Function calibrate_camera() not found in base self.”
Here is the line where i bind the method:

ClassDB::bind_method(D_METHOD("calibrate_camera", "image directory"), &CalibratedCamera::CalibrateCamera);

and the function header:

void CalibratedCamera::CalibrateCamera(const godot::String imageDir)

Do I have to call the method another way? Perhaps using self.call()

[gertkeno]

Does the script extend from your GDExtension class? Can you show the gd script? Having spaces in the parameter name is odd, try changing to image_directory

[nowins15]

I hadn’t realized that my gdscript had to extend the GDextension, but that makes perfect sense. Thank you so much!