The Screen point.
The distance.
ScreenToWorldSpace Method
Converts a point in Screen space to a Vector3 in world space, given the specified distance from the screen
Syntax
public Vector3 ScreenToWorldSpace( 
   Point pt,
   double distance
)

Parameters

pt
The Screen point.
distance
The distance.

Return Value

The Vector3 world coordinate
Requirements

Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

See Also