Amiga World Official AmigaDOS 2 Companion - eBook-ENG

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AmigaWorld Official AmigaDOS 2 Companion

your choice will go into effect. The requester command keys work on request ers only, not on windows such as the IControl window.

Mouse Screen Drag: You can move any Amiga screen equipped with a drag bar up and down by dragging it with the selection button. If the screen is wider than your display (see the ScreenMode editor), you can also move it side to side. Mouse screen drag lets you turn any part of a screen into a drag bar.

By pressing one of the keys listed under Mouse Screen Drag and holding down the selection button, you can drag a screen. The selection button doesn't have to be over the drag bar; it can be on any window on a screen. The Shift keys, Alt keys, Control, and Left-Amiga key are all available for the Screen Drag function. Unlike the Verify Timeout buttons, the Mouse Screen Drag buttons are not mutually exclusive, although they should be. Selecting more than one button turns off the Mouse Screen Drag function entirely, instead of making more than one key for the function, as you'd expect. Per haps future releases of Workbench 2.0 will fix this "feature." Coercion: The two buttons under this heading tell Intuition how to handle situations in which the screens on your system use different display modes. Intuition gives the topmost screen priority and displays it in its appropriate mode. If you drag that screen down part-way to reveal a screen that uses a different display mode, Intuition may have to "coerce" the underlying screen into a new mode if it uses one incompatible with the topmost screen. (If the underlying screen is using one of the A2024 modes, Intuition will simply make it invisible.) This coercion sometimes results in severe aspect ration distortion of the under lying screen. To compensate, Intuition may switch the coerced screen to a faster pixel rate, thus sacrificing some colors, or make the coerced screen inter laced, to shorten the height of the pixels. You can tell Intuition which options your prefer with the Avoid Flicker and Preserve Colors buttons.

Avoidflicker: When selected, this button tells Intuition not to use interlac ing. If you don't have a Display Enhancer (from Commodore) or a flickerFixer (from MicroWay) in your system, you should probably select this option.

Preserve Colors: Selecting this option tells Intuition not to switch to higher resolution pixels and drop some of the screen colors. A natural if you have a Display Enhancer or flickerFixer, this makes Intuition first resort to an interlaced screen to maintain the proper aspect ratio of the coerced screen.

Miscellaneous Flags: As the name implies, these buttons handle functions that

didn't fit anywhere else.


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