Arbortext IsoDraw > User's Reference > Menus > Edit Menu > Preferences > Redraw > Redraw Preferences for Tooltips and Object Tips
  
Redraw Preferences for Tooltips and Object Tips
Screen Redraw will be Interrupted, If
In selecting this option, you authorize that screen redraw can be interrupted by specific actions. You can select only one of the two quoted options by checking the appropriate box (using mouse button or keyboard). Screen redraw is repeated in full after the interruption.
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For example, you do not need to wait for your drawing to be displayed in full in one magnification scale before enlarging it further.
Screen Redraw will not be Interrupted
With this option you can prevent screen redraw being interrupted at all.
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Regardless of the settings you have selected, you can completely cancel screen redraw at any time by entering the keyboard command CTRL+. (period character). The Redraw command lets you update the screen after canceling.
Tooltips
Tooltips is explanatory text which appears when you move the mouse over the toolbar symbols. If this box is not checked, tooltips will not be shown.