1vga_setdisplaystart(3) Svgalib User Manual vga_setdisplaystart(3)
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6 vga_setdisplaystart - set the display start address
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9 #include <vga.h>
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11 void vga_setdisplaystart(int a);
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15 Set the display start address to a, where the address is the number of
16 pixels offset from the start of video memory, except for hicolor/true‐
17 color modes, which use a unit of 1 byte. Can be used for page-flipping
18 and virtual desktop scrolling. May not work properly for 16 color
19 modes.
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21 You should ensure that the memory displayed is actually available on
22 the SVGA card (query memory size with vga_modeinfo(3)) and ensure that
23 it is saved by svgalib during console switches with vga_claimvideomem‐
24 ory(3).
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26 You may only set the bits of the display start address returned by
27 vga_modeinfo(3).
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31 svgalib(7), vgagl(7), libvga.config(5), vga_modeinfo(3), vga_setlogi‐
32 calwidth(3), vga_claimvideomemory(3)
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35 This manual page was edited by Michael Weller <eowmob@exp-math.uni-
36 essen.de>. The exact source of the referenced function as well as of
37 the original documentation is unknown.
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39 It is very likely that both are at least to some extent are due to Harm
40 Hanemaayer <H.Hanemaayer@inter.nl.net>.
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42 Occasionally this might be wrong. I hereby asked to be excused by the
43 original author and will happily accept any additions or corrections to
44 this first version of the svgalib manual.
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48Svgalib (>= 1.2.11) 27 July 1997 vga_setdisplaystart(3)