How to adjust scroll bar location when zoom by mouse wheel

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Hello
In my windows form app, i have UserControl and inside it there is a PictureBox.
when i use mouse wheel on the PictureBox the size of it will changed and the UserControl will auto scroll
Now i want when i use the mouse wheel, adjust the UserControl scroll bars to arrange the mouse location
in better words "zoom to the mouse location like Google Maps!"

Posted 17-Dec-14 2:20am

M. Daban

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M. Daban · Accepted Answer · 2014-12-22T21:32:00

C#

float sv = (float)testPnl1.VerticalScroll.Value / (float)testPnl1.VerticalScroll.Maximum;
float sh =                                                  (float)testPnl1.HorizontalScroll.Value/(float)testPnl1.HorizontalScroll.Maximum;
           
ImageWidth += zoom;

Pnl.AutoScrollPosition = new Point((int)(Pnl.HorizontalScroll.Maximum * sh), (int)(Pnl.VerticalScroll.Maximum * sv));