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====== Widescreen support ======

These function enable true widescreen support in HUD scripts.

===== Calculating screen boundaries =====

Actual screen boundaries in widescreen are outside the [[HUD coordinate system]]'s rectangle. These functions can calculate true screen boundaries in [[HUD coordinate system]].

  * ''void HudSetVirtualSize(fixed width, fixed height)''

Sets the [[HUD Library]]'s [[HUD coordinate system]] size. Default is 640x480. After that, actual screen boundaries in [[HUD coordinate system]] for current aspect ratio can be retrieved using the following functions:

  * ''fixed HudX1()'' or ''fixed HudLeft()'' -- left boundary
  * ''fixed HudX2()'' or ''fixed HudRight()'' -- right boundary
  * ''fixed HudY1()'' or ''fixed HudTop()'' -- top boundary
  * ''fixed HudY2()'' or ''fixed HudBottom()'' -- bottom boundary

Example:

<code>
// draw this item in the upper left corner of the screen
// uses 640x480 HUD coordinate system
DRAW_ITEM(HudTop(), HudLeft());
</code>

Screen boundaries in current aspect ratio can be calculated for any [[HUD coordinate system]] size without calling ''HudSetVirtualSize'':

  * ''fixed HudX1For(fixed width)'' or ''fixed HudLeftFor(fixed width)'' -- left boundary for given [[HUD coordinate system]] width.
  * ''fixed HudX2For(fixed width)'' or ''fixed HudRightFor(fixed width)'' -- right boundary for given [[HUD coordinate system]] width.
  * ''fixed HudY1For(fixed height)'' or ''fixed HudTopFor(fixed height)'' -- top boundary for given [[HUD coordinate system]] height.
  * ''fixed HudY2For(fixed height)'' or ''fixed HudBottomFor(fixed height)'' -- bottom boundary for given [[HUD coordinate system]] height.
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