how to change ''Silent Hill 4'' to 1680*1050

[2011Michael]

I have got a XVI32,and then launch the game and in the graphics options select 1600*1200.
the next part is a problem:how to get a Hex string?
I knew that "40 06" is for 1600 in hex, "90 06" for 1680,
"B0 04" is for 1200 in hex, "1A 04" for 1050.
but what is the whole Hex string?