Sets the new origin for the class object's associated vector.
#include "ltwrappr.h"
virtual L_INT LVectorBase::SetOrigin(pOrigin=NULL)
Pointer to a VECTORPOINT structure that contains the new origin. If this parameter is NULL, the new origin will be calculated based on the objects currently in the vector handle.
Value | Meaning |
---|---|
SUCCESS | The function was successful. |
< 1 | An error occurred. Refer to Return Codes. |
The origin of a vector drawing may change whenever new objects are added. To insure that the drawing is centered around its origin, call LVectorBase::SetOrigin(NULL) after adding objects.
The origin may be retrieved using LVectorBase::GetOrigin.
LVectorBase::ApplyTransformation must be called to make the new origin take effect; if you do not your changes will not be saved.
This example moves the vector origin.
L_INT LVectorBase__SetOriginExample(HWND hWnd, LVectorBase *pVector)
{
UNREFERENCED_PARAMETER(hWnd);
L_INT nRet;
VECTORPOINT pointOrigin;
nRet = pVector->GetOrigin (&pointOrigin);
if(nRet != SUCCESS)
return nRet;
pointOrigin.x +=1;
nRet = pVector->SetOrigin(&pointOrigin);
if(nRet != SUCCESS)
return nRet;
return SUCCESS;
}
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