get left and bottom most edges from drawing view

1. Visit all views using ProDrawingViewVisit

2. Use ProDrawingViewSheetGet to determine the sheet number of the visited view

3. Compare positions using ProDrawingViewOutlineGet for the same sheet number

Below is sample code to get the bottom left view for recent sheets.

static int curSheet = -1;
ProError userViewVisit(ProDrawing drw,ProView view,ProError status,ProAppData data)
{
	int viewSheet = -1;
	status = ProDrawingViewSheetGet(drw,view,&viewSheet);
	if(curSheet == viewSheet)
	{
		ProName viewName;
		status = ProViewNameGet(*(ProView*)data,viewName);	
		if(status!=PRO_TK_NO_ERROR)	*(ProView*)data = view;
		else
		{
			Pro3dPnt VeiwSize_1[2],VeiwSize_2[2];
			status = ProDrawingViewOutlineGet(drw,view,VeiwSize_1);
			status = ProDrawingViewOutlineGet(drw,*(ProView*)data,VeiwSize_2);
			if(VeiwSize_1[0][0] < VeiwSize_2[0][0] || VeiwSize_1[0][1] < VeiwSize_2[0][1])
			{
				*(ProView*)data = view;
			}
		}		
	}
	return PRO_TK_NO_ERROR;
}
ProError userTest()
{
	ProMdl drw;
	ProError status = ProMdlCurrentGet(&drw);
	if(status != PRO_TK_NO_ERROR)	return status;
	ProMdlType type;
	status = ProMdlTypeGet(drw,&type);
	if(type != PRO_MDL_DRAWING)	return PRO_TK_BAD_CONTEXT;
	status = ProDrawingCurrentSheetGet((ProDrawing)drw,&curSheet);
	ProView leftBottomView = NULL;
	status = ProDrawingViewVisit((ProDrawing)drw,(ProViewVisitAction)userViewVisit , NULL,&leftBottomView);
	if(leftBottomView != NULL)
	{
		ProName viewName;
		status = ProViewNameGet(leftBottomView,viewName);
		ProMessageDisplay(MSGFIL,"USER %0ls",viewName);
	}
	return PRO_TK_NO_ERROR;
}