This document is archived and information here might be outdated.  Recommended version.


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