OGLATTR_VIEW_LONGITUDE
| Data Type: | decimal | 
| Access: | read/write | 
| Functions: | OGLGetCtrlAttribute OGLSetCtrlAttribute | 
| Description: | Specifies the view longitude when the OGLATTR_VIEW_DIRECTION is set      to OGLVAL_USER_DEFINED. The longitude is the angle between the      projection of the view position on the XY-plane and the x-axis       in the coordinate system. This attribute along with      OGLATTR_VIEW_LATITUDE can be used to rotate the scene.      The view center is defined by the attributes      OGLATTR_VIEW_CENTERX, OGLATTR_VIEW_CENTERY, and      OGLATTR_VIEW_CENTERZ. | 
| LabWindows/CVI Compatibility: | LabWindows/CVI 5.0 and later | 
