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Graphics Interchange Format  |  1998-06-08  |  17KB  |  347x212  |  4-bit (16 colors)
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OCR: your vxd a VCOMM VRD parallel port: a) Get VPD pointer and port handle from VCOMM b) Call VPD to acquire port c) Directly access parallel port (even from ring3!) d) Call VPD to release port Figure 1: Overview of acquiring parallel port