launcher
It is the little arrow in the bottom right corner of a group and is known as the Dialog Box Launcher.
The Dialog Box Launcher is a tool used in older versions of Microsoft Word. It is in the ribbon at the top of the page, where all the other commands are. It usually indicates there are more options to use than just what appears in the ribbon.
Dialog Box Launcher
The Access Window
A task pane is a dialog box that is presented inside a window pane rather than a separate window. Dialog box is a secondary window that appears when the system needs input from the user to carry on with a particular process such as: during installation of software sometimes system prompts you whether to run the program or not and a window is opened on the screen.
It does not open any pane but red underlines it. It is according to the dictionary and shows the suggestions.
Task pane
Yes, there is a difference. A dialog box allows communication between two or more people. An example is a chat box. A task pane is a Windows feature that appears at the right of the window in Microsoft Office 2002 and allows the user to choices for doing a task.
A dialog box displays with the specific option
the one on the left column the one on the left column
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