LAnnRuler::GetDistance

#include "ltwrappr.h"

virtual L_INT LAnnRuler::GetDistance(pdDistance)

Gets the distance of the annotation object in the object's unit of measurement, set by LAnnRuler::SetUnit.

Parameters

L_DOUBLE *pdDistance

Address of the variable to be updated with the distance of the ruler object. For objects having only one ruler, this variable will be updated with the length. For cross products, which have two rulers, this variable will be updated with the length of the primary ruler.

Returns

Value Meaning
SUCCESS The function was successful.
< 1 An error occurred. Refer to Return Codes.

Required DLLs and Libraries

Platforms

Win32, x64.

See Also

Functions

Topics

Example

L_INT LAnnRuler_GetDistanceExample(HWND hWnd) 
{ 
   LBitmap MyBitmap; 
   RECT rect; 
 
   LAnnRuler MyAnnRuler; 
 
   ANNPOINT MyPts[2] = { 40,40, 
                         140,40, 
                       }; 
 
   pANNPOINT pMyPts = MyPts; 
   MyAnnRuler.SetPoints(pMyPts, 2); 
   L_UINT uShowFlags; 
   MyAnnRuler.GetShowFlags(&uShowFlags); 
 
   MyAnnRuler.SetShowFlags(ANNSHOW_LENGTH,0); 
 
   //Set Ruler properties 
   MyAnnRuler.SetVisible(TRUE); 
 
   MyAnnRuler.GetBoundingRect(&rect); 
 
   L_DOUBLE dDist=0; 
   MyAnnRuler.GetDistance(&dDist); 
 
   //Draw the annotation 
   HDC hDC = ::GetDC(hWnd); 
   MyAnnRuler.Draw(hDC,&rect); 
   ::ReleaseDC(hWnd, hDC);  
 
   return SUCCESS; 
} 
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