03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsyncextern _X_EXPORT RamDacHelperRecPtr BTramdacProbe(ScrnInfoPtr pScrn,
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsyncextern _X_EXPORT void BTramdacSave(ScrnInfoPtr pScrn, RamDacRecPtr RamDacRec,
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsyncextern _X_EXPORT void BTramdacRestore(ScrnInfoPtr pScrn, RamDacRecPtr RamDacRec,
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsyncextern _X_EXPORT void BTramdacSetBpp(ScrnInfoPtr pScrn,
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync * BT registers