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ICamera.IsUsable Property (ArcObjects .NET 10.6 SDK)
ArcObjects Library Reference (3DAnalyst)  

ICamera.IsUsable Property

Indicates if the camera has valid parameters.

[Visual Basic .NET]
Public ReadOnly Property IsUsable As Boolean

[C#]
public bool IsUsable {get;}

[C++]
HRESULT get_IsUsable(
  Boolean* isValid
);

[C++]

Parameters
isValid [out, retval]

  isValid is a parameter of type bool*

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server. Requires 3D Analyst Extension.

Remarks

Before doing something with a camera it is advisable to call IsUsable first. It's possible the camera has some properties which are undefined or is unable to perform certain requests. This happens when a camera is associated with an empty scene, the target/observer or other parameters has invalid values (not a number, for instance), or when the target and the observer share the same location etc.

See Also

ICamera Interface