MakeScreen

Do an Intuition-integrated MakeVPort() of a screen.

Declaration

Source position: intuition.pas line 3865

Arguments

Function result

Returns zero for success, non-zero for failure. Probable cause of failure is failure of MakeVPort().

Description

This procedure allows you to do a MakeVPort() for the viewport of your custom screen in an Intuition-integrated way. This way you can do your own screen manipulations without worrying about interference with Intuition's usage of the same viewport.

The operation of this function is as follows:

• Block until the Intuition View structure is not in being changed.
• Set the view modes correctly to reflect if there is a (visible) interlaced screen.
• call MakeVPort(), passing the Intuition View and your screen's ViewPort.
• Unlocks the Intuition View.

After calling this routine, you should call RethinkDisplay() to incorporate the new viewport of your custom screen into the Intuition display.

Note: Intuition may determine that because of a change in global interlace needs that all viewports need to be remade, so it may effectively call RemakeDisplay().

See also