MGL_setRelViewport
Sets a viewport relative to the current viewport.
Declaration
void MGLAPI MGL_setRelViewport(
rect_t view)
Prototype In
mgraph.h
Parameters
view |
Bounding rectangle for the new viewport |
Description
Sets the current viewport to the viewport specified by view, relative to the currently active viewport. The new viewport is restricted to fall within the bounds of the currently active viewport. Note that when the viewport is changing, the viewport origin is always reset back to (0,0).
All output in MGL is relative to the current viewport, so by changing the viewport to a new value you can make all output appear in a different rectangular portion of the video display.
See Also
MGL_getViewport, MGL_setViewport, MGL_clearViewport, MGL_setClipRect, MGL_setViewportOrg
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