Help Version 19.0.2017.10.27
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#include "ltwrappr.h"
virtual L_INT LAnnAutomation::GetDistance(pdDistance, pdDistance2=0)
L_DOUBLE *pdDistance; |
address of the variable that will be updated with the distance of a ruler object |
L_DOUBLE *pdDistance2; |
address of the variable that will be updated with the distance of a ruler object |
Gets the distance of the Ruler object(s) in the object's unit of measurement, set by LAnnAutomation::SetUnit.
Parameter |
Description |
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. |
pdDistance2 |
Address of the variable to be updated with the distance of the ruler object. For cross products and protractors, which have two rulers, this variable will be updated with the length of the secondary ruler. |
Either pdDistance or pdDistance2 can be NULL, but not both. If either of these pointers is NULL, the distance for that ruler will not be retrieved.
SUCCESS |
The function was successful. |
< 1 |
An error occurred. Refer to Return Codes. |
Required DLLs and Libraries
LTANN For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application. |
Win32, x64.
get the current measurement unit settings and display them if unit is not inches, make it so
L_INT LAnnAutomation_LAnnAutomation_GetDistanceExample(LAnnAutomation * pAnnObject){L_INT nRet;L_SIZE_T uLen;L_SIZE_T uUnit;HGLOBAL hUnitAbbrev;L_TCHAR * pUnitAbbrev=NULL;L_SIZE_T uPrecision;L_TCHAR buf[180];L_TCHAR dis[180];L_TCHAR format[180];L_DOUBLE dDistance;/* first, get unit abbreviation string len */uLen = pAnnObject->GetUnitLen();/* allocate enough memory for the abbreviation string */hUnitAbbrev = GlobalAlloc(GMEM_MOVEABLE, uLen*sizeof(L_TCHAR));pUnitAbbrev = (L_TCHAR *)GlobalLock(hUnitAbbrev);/* get the settings */uUnit = pAnnObject->GetUnit(pUnitAbbrev, &uPrecision,NULL);/* and, get the distance */nRet = pAnnObject->GetDistance(&dDistance);if(nRet != SUCCESS)return nRet;/* display current settings & distance in current unit of measurement */wsprintf(buf, TEXT("Unit: %d\nAbbrev: %s\nPrecision: %d\n"),uUnit, pUnitAbbrev, uPrecision);wsprintf(format, TEXT("Distance: %%.%df\n"),uPrecision);wsprintf(dis, format, dDistance);lstrcat(buf, dis);MessageBox(NULL, buf,TEXT( "Units"), MB_OK);/* if unit is not inches, make it so */if(uUnit != ANNUNIT_INCHES)pAnnObject->SetUnit(ANNUNIT_INCHES, TEXT("in"), 2, 0);GlobalUnlock(hUnitAbbrev);GlobalFree(hUnitAbbrev);return SUCCESS;}
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