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Table of Contents
4. Standard Units
4.37. Graph - Graph unit
4.37.2. Graph Unit Procedures and Functions
4.37.2.94. SetActivePage procedure
4.37.2.94. SetActivePage procedure
Targets: MS-DOS, Win32
Graph Unit
Set the active page for graphics output.
Declaration:
procedure SetActivePage(Page: DWORD);
Remarks:
Makes Page the active graphics page, directing all
subsequent graphics output to Page.
Multiple pages are supported only by the SVGA graphics cards.
With multiple graphics pages, a program can direct graphics output
to an offscreen page, then quickly display the offscreen image
by changing the visual page with the
SetVisualPage procedure.
This technique is especially useful for animation.
Win32 target:
Only two graphic pages are available for Graph unit.
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