Difference between revisions of "Unit Video"
From Ultibo.org
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| − | '''Ultibo Video | + | '''Ultibo Video Interface unit''' |
This unit provides both the Video device interface and the generic USB video device driver. | This unit provides both the Video device interface and the generic USB video device driver. | ||
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| − | <pre style="border: 0; padding-bottom:0px;">function VideoGetCount:LongWord | + | <pre style="border: 0; padding-bottom:0px;">function VideoGetCount:LongWord;</pre> |
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Get the current Video device count</div> | <div style="font-size: 14px; padding-left: 12px;">'''Description:''' Get the current Video device count</div> | ||
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| − | <pre style="border: 0; padding-bottom:0px;">function VideoDeviceGetDefault:PVideoDevice | + | <pre style="border: 0; padding-bottom:0px;">function VideoDeviceGetDefault:PVideoDevice;</pre> |
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Get the current default Video device</div> | <div style="font-size: 14px; padding-left: 12px;">'''Description:''' Get the current default Video device</div> | ||
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Latest revision as of 02:32, 15 December 2022
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Contents
[hide]Description
Ultibo Video Interface unit
This unit provides both the Video device interface and the generic USB video device driver.
Constants
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Video specific constants
VIDEO_*
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Video device types
VIDEO_TYPE_*
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Video device states
VIDEO_STATE_*
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Video device flags
VIDEO_FLAG_*
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Video logging
VIDEO_LOG_*
Type definitions
Video properties
Video enumeration callback
TVideoEnumerate = function(Video:PVideoDevice; Data:Pointer):LongWord;
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Video notification callback
TVideoNotification = function(Device:PDevice; Data:Pointer; Notification:LongWord):LongWord;
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Video device get properties
TVideoDeviceGetProperties = function(Video:PVideoDevice; Properties:PVideoProperties):LongWord;
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Video device
Public variables
Video logging
VIDEO_DEFAULT_LOG_LEVEL:LongWord = VIDEO_LOG_LEVEL_DEBUG;
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Minimum level for Video messages. Only messages with level greater than or equal to this will be printed. |
VIDEO_LOG_ENABLED:Boolean;
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Function declarations
Initialization functions
Video device functions
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function VideoDeviceGetProperties(Video:PVideoDevice; Properties:PVideoProperties):LongWord;
Description: Get the properties for the specified Video device
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function VideoDeviceCreateEx(Size:LongWord):PVideoDevice;
Description: Create a new Video device entry
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function VideoDeviceDestroy(Video:PVideoDevice):LongWord;
Description: Destroy an existing Video device entry
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function VideoDeviceRegister(Video:PVideoDevice):LongWord;
Description: Register a new Video device in the Video device table
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function VideoDeviceDeregister(Video:PVideoDevice):LongWord;
Description: Deregister a Video device from the Video device table
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function VideoDeviceFindByName(const Name:String):PVideoDevice; inline;
Description: To be documented
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function VideoDeviceFindByDescription(const Description:String):PVideoDevice; inline;
Description: To be documented
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function VideoDeviceEnumerate(Callback:TVideoEnumerate; Data:Pointer):LongWord;
Description: To be documented
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function VideoDeviceNotification(Video:PVideoDevice; Callback:TVideoNotification; Data:Pointer; Notification,Flags:LongWord):LongWord;
Description: To be documented
Video helper functions
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function VideoDeviceGetDefault:PVideoDevice;
Description: Get the current default Video device
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function VideoDeviceSetDefault(Video:PVideoDevice):LongWord;
Description: Set the current default Video device
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function VideoDeviceCheck(Video:PVideoDevice):PVideoDevice;
Description: Check if the supplied Video device is in the Video device table
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procedure VideoLog(Level:LongWord; Video:PVideoDevice; const AText:String);
Description: To be documented
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procedure VideoLogInfo(Video:PVideoDevice; const AText:String); inline;
Description: To be documented
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procedure VideoLogWarn(Video:PVideoDevice; const AText:String); inline;
Description: To be documented
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procedure VideoLogError(Video:PVideoDevice; const AText:String); inline;
Description: To be documented
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procedure VideoLogDebug(Video:PVideoDevice; const AText:String); inline;
Description: To be documented
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