Buttons

Buttons

Screen buttons are depressed by clicking on them, but action only takes place when the mouse button is released, so it is safe to drag the (depressed) mouse around the screen.

Buttons may be set (ie depressed) by PRIMER itself, for example the " MODEL " one below, to indicate that this option is in force. They may also be greyed out, to indicate that the option is not currently available. Some buttons repeat automatically when held depressed: this depends on context. Buttons with "..." after them will invoke sub-menus.

The primitive "widgets" in the menu interface are used as follows:

"Popup" window invocation : Buttons with an ">" symbol may be selected normally with the left mouse button, but if the right mouse button is depressed over them it will invoke a "popup" window. Move the cursor into this window to make a selection, or move elsewhere and click a button to deactivate the popup.