L_LVKRN_API L_BOOL L_VecIsObjectInsideRect(pVector, pObject, pRect, dwFlags)
Determines whether the specified object(s) is(are) within the specified rectangle.
Pointer to a vector handle.
Pointer to a VECTOROBJECT structure that contains information about a specific object. If this parameter is NULL, the object(s) to test is(are) determined by dwFlags.
Pointer to a RECT structure that contains information about a bounding rectangle.
Flag that indicates which object(s) to test. This flag is valid only if pObject is NULL. If pObject is not NULL, this parameter is ignored. Possible values are:
Value | Meaning |
---|---|
0 | Test all objects in the vector handle to determine whether they are in the specified parallelogram. |
VECTOR_FLAGS_SELECTED_ONLY | Test only the selected objects within the vector handle. |
Value | Meaning |
---|---|
TRUE | The specified object(s) is(are) within the specified rectangle. |
FALSE | The specified object(s) is(are) not within the specified rectangle or the specified object is not valid. |
The rectangle is given in screen (physical) coordinates.
The current view port, pan position, camera, scale, translation and rotation values are all considered when determining whether the object is within the rectangle.
Required DLLs and Libraries
This example will select all objects inside a given rectangle.
L_INT EXT_CALLBACK VecIsObjectInsideRectCB(
pVECTORHANDLE pVector,
pVECTOROBJECT pObject,
L_VOID* pData)
{
L_INT nRet = SUCCESS;
VECTOROBJECT ObjectDesc;
RECT* pRect = (RECT *) pData;
/* Check if object is inside the rectangle */
if( L_VecIsObjectInsideRect( pVector, pObject, pRect, 0L ) )
{
nRet = L_VecGetObject( pVector, pObject, VECTOR_OBJECT, &ObjectDesc);
if(nRet != SUCCESS)
return nRet;
ObjectDesc.dwFlags |= VECTOR_OBJECT_SELECTED;
nRet = L_VecSetObject(pVector, pObject, VECTOR_OBJECT, &ObjectDesc);
if(nRet != SUCCESS)
return nRet;
nRet = L_VecFreeObject(VECTOR_OBJECT, &ObjectDesc);
}
/* Continue the enumeration */
return nRet;
}
L_LTVKRNTEX_API L_INT VecIsObjectInsideRectCBExample(pVECTORHANDLE pVector, RECT *pRect)
{
/* Enumerate all objects in the drawing */
return L_VecEnumObjects( pVector, (pVECTORENUMOBJECTSPROC)VecIsObjectInsideRectCB, pRect, 0 );
}