in a MDI tab environment, if one have a floating ToolWindow with the focus, it is not possible to click a ToolStrip on the main form to be able to raise the corresponding operation in only one click. This is very annoying. We are obligated to click once in the main form to se it the focus, and then to click a tool strip. The menu strip has the same behaviour.
It's frustrating because one can see the menu strip or the tool strip of the main form responding to the mouse over event because its backcolor changes, as if it was possible to click it immediately to drop it down. But it's not. One are obligated to click twice.
Thanks to remediate to this.