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--- documentation:development:opera:pf25:ppgfldr:ggsfldr:gpgfldr:4gpgj [2022/11/07 14:49] – created - external edit 127.0.0.1
+++ documentation:development:opera:pf25:ppgfldr:ggsfldr:gpgfldr:4gpgj [Unknown date] (current) – external edit (Unknown date) 127.0.0.1
@@ Line 1: / Line 1: @@
+====== Controlling Pixel Interpolation ======
+----
+In its default state, the display generator practices full pixel interpolation for all 320-by-240 pixels it receives from a screen. If you'd like to turn off interpolation for that "crispy pixels" look within a screen, use these two calls:
+<code>
+int32 DisableHAVG( Item screenItem )
+int32 DisableVAVG( Item screenItem )
+</code>
+The first call disables horizontal interpolation for the specified screen; the second call disables vertical interpolation for the specified screen. If either call is successful, it returns a zero. If unsuccessful, it returns a negative number (an error code).
+To turn interpolation back on, use these two calls:
+<code>
+int32 EnableHAVG( Item screenItem )
+int32 EnableVAVG( Item screenItem )
+</code>
+The first call enables horizontal interpolation for the specified screen; the second call enables vertical interpolation for the specified screen. If either call is successful, it returns a 0. If unsuccessful, it returns a negative number (an error code).

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