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GL3.2 Version 4.1 for AIX: Programming Concepts

List of GL Viewport and Screenmask Subroutines

getscrmask
                          Returns the current screenmask.
getviewport
                          Gets a copy of the dimensions of the current viewport.
lgetdepth
                          Gets the distance of the near and far clipping planes.
lsetdepth
                          Sets the viewport depth range.
popviewport
                          Pops the viewport stack.
pushviewport
                          Pushes the viewport onto the viewport stack.
reshapeviewport
                          Sets the viewport to the dimensions of the current window.
screenspace
                          Interprets graphics positions as absolute screen coordinates.
scrmask
                          Defines a rectangular 2-D clipping mask.
viewport
                          Set the area of the window used for all drawing.

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