Displaying 16 bit images

[C# Programming]

Hi i'm using C# in visual estudio 2005, i need to open 16 bits png images, not raw images. i have a code in which one i can open a 8 bit image and i can get a pixel from that image. the code works, but what i need is to open a 16 bit images. i need your help. thankyou. some of the code i have is the next:

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private void pictureBox_Click(object sender, System.EventArgs e)
{
int[] pos = new int[2];
pos = m_Coord.GetXY();

if (this.pictureBox.Image != null)
if ((pos[0]