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NE:strmif.tagCameraControlProperty |
CameraControlProperty (strmif.h) |
The CameraControlProperty enumeration specifies a setting on a camera. |
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dshow\cameracontrolproperty.htm |
dshow |
eebf2246-960f-48ea-86b7-7542e69f2e3e |
4/26/2023 |
CameraControlProperty, CameraControlProperty enumeration [DirectShow], CameraControlPropertyEnumeration, CameraControl_Exposure, CameraControl_Focus, CameraControl_Iris, CameraControl_Pan, CameraControl_Roll, CameraControl_Tilt, CameraControl_Zoom, dshow.cameracontrolproperty, strmif/CameraControlProperty, strmif/CameraControl_Exposure, strmif/CameraControl_Focus, strmif/CameraControl_Iris, strmif/CameraControl_Pan, strmif/CameraControl_Roll, strmif/CameraControl_Tilt, strmif/CameraControl_Zoom |
strmif.h |
Dshow.h |
Windows |
Windows |
CameraControlProperty |
19H1 |
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[The feature associated with this page, DirectShow, is a legacy feature. It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation. Those features have been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use MediaPlayer, IMFMediaEngine and Audio/Video Capture in Media Foundation instead of DirectShow, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]
The CameraControlProperty enumeration specifies a setting on a camera.
Specifies the camera's pan setting, in degrees. Values range from –180 to +180, with the default set to zero. Positive values are clockwise from the origin (the camera rotates clockwise when viewed from above), and negative values are counterclockwise from the origin.
Specifies the camera's tilt setting, in degrees. Values range from –180 to +180, with the default set to zero. Positive values point the imaging plane up, and negative values point the imaging plane down.
Specifies the camera's roll setting, in degrees. Values range from –180 to +180, with the default set to zero. Positive values cause a clockwise rotation of the camera along the image-viewing axis, and negative values cause a counterclockwise rotation of the camera.
Specifies the camera's zoom setting, in millimeters. Values range from 10 to 600, and the default is specific to the device.
Specifies the exposure setting, in log base 2 seconds. In other words, for values less than zero, the exposure time is 1/2^n seconds, and for values zero or above, the exposure time is 2^n seconds. For example:
| Value | Seconds |
|---|---|
| -3 | 1/8 |
| -2 | 1/4 |
| -1 | 1/2 |
| 0 | 1 |
| 1 | 2 |
| 2 | 4 |
Specifies the camera's iris setting, in units of fₛₜₒₚ* 10.
Specifies the camera's focus setting, as the distance to the optimally focused target, in millimeters. The range and default value are specific to the device.
For a given property, a particular device might implement only a subset of the listed range.