76 lines
1.2 KiB
C
76 lines
1.2 KiB
C
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/*++
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Copyright (c) 2000 Microsoft Corporation
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Module Name:
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headless.h
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Abstract:
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This module contains the definitions for the code that implements the
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Headless device driver.
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Author:
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Environment:
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Kernel mode
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--*/
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#ifndef _HEADLESS_
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#define _HEADLESS_
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typedef struct {
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USHORT hres; // # of pixels across screen
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USHORT vres; // # of scan lines down screen
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} VIDEOMODE, *PVIDEOMODE;
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//
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// Function prototypes.
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//
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VP_STATUS
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HeadlessFindAdapter(
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PVOID HwDeviceExtension,
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PVOID HwContext,
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PWSTR ArgumentString,
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PVIDEO_PORT_CONFIG_INFO ConfigInfo,
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PUCHAR Again
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);
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BOOLEAN
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HeadlessInitialize(
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PVOID HwDeviceExtension
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);
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BOOLEAN
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HeadlessStartIO(
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PVOID HwDeviceExtension,
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PVIDEO_REQUEST_PACKET RequestPacket
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);
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//
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// Private function prototypes.
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//
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VP_STATUS
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HeadlessQueryAvailableModes(
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PVIDEO_MODE_INFORMATION ModeInformation,
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ULONG ModeInformationSize,
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PULONG OutputSize
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);
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VP_STATUS
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HeadlessQueryNumberOfAvailableModes(
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PVIDEO_NUM_MODES NumModes,
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ULONG NumModesSize,
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PULONG OutputSize
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);
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extern VIDEOMODE ModesHeadless[];
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extern ULONG NumVideoModes;
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#endif // _HEADLESS_
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