Retrieves the minimum and maximum points of an objects view context space.
#include "ltwrappr.h"
L_INT LVectorObject::GetViewContext(pMin, pMax)
Pointer to a VECTORPOINT structure to be updated with the minimum point of the view context space.
Pointer to a VECTORPOINT structure to be updated with the maximum point of the view context space.
Value | Meaning |
---|---|
SUCCESS | The function was successful. |
< 1 | An error occurred. Refer to Return Codes. |
This function fails if the object does not have a preset view context.
L_INT LVectorObject__ChangeViewContextExample( LVectorObject *pVecObj, pVECTORPOINT pMin, pVECTORPOINT pMax )
{
L_INT nRet;
VECTORPOINT Min;
VECTORPOINT Max;
nRet = pVecObj->GetViewContext( &Min, &Max );
if( SUCCESS != nRet )
{
nRet = pVecObj->SetViewContext( pMin, pMax );
*pMin = Min;
*pMax = Max;
}
if( SUCCESS != nRet )
{
pVecObj->RemoveViewContext( );
}
return nRet;
}
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