I’m working on implementing a new camera type through the Max SDK. I’m doing this by creating a new class that inherits from GenCamera and I have run into a problem when creating a rollout to let users edit the camera parameters.
The way I’m trying to create the rollout is to just call ClassDesc2::BeginEditParams and ClassDesc2::EndEditParams from my camera’s BeginEditParams and EndEditParams functions. This ClassDesc2 has just one ParamBlockDesc2 registered with it that is configured with P_AUTO_UI. I’ve included the relevant bits of code in this paste: https://pastebin.com/H77hTcAT
In that example IDD_PANEL_CAM_PANO_PARAM is the resource identifier for a simple blank pane with the correct width for command panel rollouts.
The problem I’m having is that when I use my camera object like this I get the following showing up in max instead of the empty rollout (titled “test panel”) I expect:
It looks like Max is trying to let me know that something is quite wrong, but I can’t find any other error messages or any indication as to what specifically the problem is. Anyone know what might be causing my trouble here? I had some trouble searching as the string “>>> @!&*# <<<” doesn’t produce any worthwhile results on google.
Found the cause of this. It seems that the problem was my ClassDesc2 didn’t implement the function HInstance(), which is required for these rollouts to work. I just added that and made it return the dll’s hinstance and everything works.