Capturing Arrow key keyboard event in windows form

Question

For Opengl view on windows Form in Visual C++ , Iam completely puzzled about how to represent arrow keys(UP ARROW, DOWN ARROW, RIGHT ARROW, LEFT ARROW) for capturing these 4 keyboard events. For other alphabetic keys i just used....

 void PhotoRealisticRendering_KeyPress(Object^ sender, KeyPressEventArgs^ e){
 if(e->KeyChar=='D')
 {
 }
 }

Can someone help me with this?