Want to protect your cyber security and still get fast solutions? Ask a secure question today.Go Premium

x
  • Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 165
  • Last Modified:

Numerical value from pointArray[ i ]

I need the numerical values of the x-coordinates of the points on the screen where I have clicked with the mouse. Briefly I do the following (say, clicking twice):



             // add mouse position to vertex list
               points->Add( __box( Point( e->X, e->Y ) ) );



               // if I clicked 2 times
               if ( points->Count  == 2 ) {

                  // create array of points
                  Point pointArray[] = new Point[ points->Count ];
                 
                  // add each point to the array
                  for( int i = 0; i < points->Count; i++ )
                     pointArray[ i ] = *(
                     dynamic_cast< Point* >( points->Item[ i ] ) );
                                                      }



As a result, I see in the messagebox MessageBox::Show(  pointArray[ 0 ].ToString(),  pointArray[ 1 ].ToString() ); the following:

{X=124,Y=231} and {X=67,Y=96}  

How do I extract the numerical values of the x-coordinates from these data (from the array pointArray[ i ])?
0
judico
Asked:
judico
  • 2
1 Solution
 
judicoAuthor Commented:
I got that:

X1 = pointArray[ 0 ].X;
X2 = pointArray[ 1 ].X;

but how does one first plot

void OnPaint( PaintEventArgs *paintEvent )      
{
<some code>
}

and then, after clicking twice and assigning non-zero values of X1 and X2, plots again

graphicsObject->DrawEllipse( pen, X1, X2, 7, 7 );  ?
0
 
judicoAuthor Commented:
I got that too. After values X1 and X2 are made non-zero the graphics should be repainted through Refresh();
0
 
NetminderCommented:
User resolved; closed, 50 points refunded.

Netminder
Site Admin
0

Featured Post

Receive 1:1 tech help

Solve your biggest tech problems alongside global tech experts with 1:1 help.

  • 2
Tackle projects and never again get stuck behind a technical roadblock.
Join Now