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Text File | 1997-06-24 | 2.3 KB | 62 lines | [TEXT/CWIE] |
- /*------------------------------------------------------------------------------
- #
- # MacOS™ Sample Code
- #
- # Written by: Eric Anderson
- # email: eric3@apple.com
- #
- # Display Manager sample code
- #
- # DisplayVideo
- #
- # DisplayVideo.h - C Header
- #
- # Copyright © 1995 Apple Computer, Inc.
- # All rights reserved.
- #
- # Revision History:
- #
- # 5/24/95 ewa New today.
- #
- #
- #
- # Components: DisplayVideo.c
- #
- # For information on the use of this sample code, please the documentation in the Read Me file
- ------------------------------------------------------------------------------*/
-
- // requestFlags bit values in VideoRequestRec (example use: 1<<kAbsoluteRequestBit)
- enum {
- kBitDepthPriorityBit = 0, // Bit depth setting has priority over resolution
- kAbsoluteRequestBit = 1, // Available setting must match request
- kShallowDepthBit = 2, // Match bit depth less than or equal to request
- kMaximizeResBit = 3, // Match screen resolution greater than or equal to request
- kAllValidModesBit = 4 // Match display with valid timing modes (may include modes which are not marked as safe)
- };
-
- // availFlags bit values in VideoRequestRec (example use: 1<<kModeValidNotSafeBit)
- enum {
- kModeValidNotSafeBit = 0 // Available timing mode is valid but not safe (requires user confirmation of switch)
- };
-
- // video request structure
- struct VideoRequestRec {
- GDHandle screenDevice; // <in/out> nil will force search of best device, otherwise search this device only
- short reqBitDepth; // <in> requested bit depth
- short availBitDepth; // <out> available bit depth
- unsigned long reqHorizontal; // <in> requested horizontal resolution
- unsigned long reqVertical; // <in> requested vertical resolution
- unsigned long availHorizontal; // <out> available horizontal resolution
- unsigned long availVertical; // <out> available vertical resolution
- unsigned long requestFlags; // <in> request flags
- unsigned long availFlags; // <out> available mode flags
- unsigned long displayMode; // <out> mode used to set the screen resolution
- unsigned long depthMode; // <out> mode used to set the depth
- VDSwitchInfoRec switchInfo; // <out> DM2.0 uses this rather than displayMode/depthMode combo
- };
- typedef struct VideoRequestRec VideoRequestRec;
- typedef struct VideoRequestRec *VideoRequestRecPtr;
-
- // Routine defines
-
-