Read bytes from a data file

[Tony West]

I am a member of a group still developing the Microprose European Air War game.
We have the source code and permission to do this.
As the code dates back to 1998 I use Visual Studio 2006.

I have written many programs in Visual basic, and have the following one to read the airbase value in the "targets.dat" file.
The file has a four byte header containing the number of tatgets, and a 32 byte data block containing the data for each target.

Private Sub Command1_Click()
List1.Clear
Dim nt As Long
Dim a4() As Long
 
Open App.Path & "\targets.dat" For Binary Access Read As 1
'read and display the number of targets
 
Get #1, 1, nt
Label2 = nt
 
ReDim a4(nt)
k = 29 'first airfield value location
n = 0
While n <= nt - 1
    Get #1, k, a4(n)
    List1.AddItem a4(n)
    k = k + 32 'a block is 32 bytes
    n = n + 1
Wend
Close 1
 
'check the number read
Label1 = List1.ListCount
 
End Sub
 

Despite many attempts I cannot write the C equivalent of this code into the eaw.exe source. All I really need to know is how to open the 'targets.dat' file and how to get the value of a byte (or integer, or long) at a given position as in the "Get #1, k, a4(n)" line.

Thanks

[Luuk]

These two sites should do to get you started:
http://courses.cs.vt.edu/cs2604/fall02/binio.html
http://www.cprogramming.com/tutorial/cfileio.html

Otherwise, post the code you created together with your problem with it.