Sorry bother again, I am having trouble using docking frames. When I use eclipse theme, there is no thumbnail window when dragging the dockable (I don’t know if the window has been dragged). When I use other theme, I can display it. Prompt window.
I created a new class test, there is a prompt window when using eclipse theme, there is no prompt window when used in my project. I don’t know why.
I used CControl and SingleDefaultDockable.