This code reads the notepad.exe to a string buffer and write it in the .app directory to show it worked.
LOCAL buffer$
ReadFile("C:/Windows/notepad.exe", buffer$)
// test if it works
OPENFILE(1, "copypad.exe", 0)
WRITESTR 1, buffer$
CLOSEFILE 1
FUNCTION ReadFile: filename$, BYREF buffer$
LOCAL file%=GENFILE()
LOCAL fs% = GETFILESIZE(filename$)
buffer$=""
IF OPENFILE(file%, filename$, 1)
LOCAL i%
LOCAL ndword% = fs%/4 - 1
// read 4 bytes at once (a tad faster)
FOR i% = 0 TO ndword%
LOCAL b%
READLONG file%, b%
INC buffer$, CHR$(bAND( b% , 0xff))
INC buffer$, CHR$(bAND(ASR(b%, 8), 0xff))
INC buffer$, CHR$(bAND(ASR(b%, 16), 0xff))
INC buffer$, CHR$(bAND(ASR(b%, 24), 0xff))
NEXT
DEC fs, 4*ndword
FOR i% = 0 TO fs%-1
LOCAL b%
READBYTE file%, b%
INC buffer$, CHR$(b%)
NEXT
CLOSEFILE file%
ENDIF
RETURN LEN(buffer$)
ENDFUNCTION
The only real problem is that it cant cope with sizes less than 4 bytes :)
I found a couple of minor mistakes in the function so I've fixed them and made it so it can cope with sizes < 4 bytes
Corrections were made to these lines
LOCAL ndword% = fs%/4 - 1
to
LOCAL ndword% = fs%/4
FOR i% = 0 TO ndword%
to
FOR i% = 0 TO ndword%-1
LOCAL buffer$
ReadFile("C:/Windows/notepad.exe", buffer$)
// test if it works
OPENFILE(1, "copypad.exe", 0)
WRITESTR 1, buffer$
CLOSEFILE 1
FUNCTION ReadFile: filename$, BYREF buffer$
LOCAL file%=GENFILE()
LOCAL fs% = GETFILESIZE(filename$)
buffer$=""
IF OPENFILE(file%, filename$, 1)
LOCAL i%
IF fs > 3
LOCAL ndword% = fs%/4
// read 4 bytes at once (a tad faster)
FOR i% = 0 TO ndword%-1
LOCAL b%
READLONG file%, b%
INC buffer$, CHR$(bAND( b% , 0xff))
INC buffer$, CHR$(bAND(ASR(b%, 8), 0xff))
INC buffer$, CHR$(bAND(ASR(b%, 16), 0xff))
INC buffer$, CHR$(bAND(ASR(b%, 24), 0xff))
NEXT
DEC fs%, 4*ndword
ENDIF
FOR i% = 0 TO fs%-1
LOCAL b%
READBYTE file%, b%
INC buffer$, CHR$(b%)
NEXT
CLOSEFILE file%
ENDIF
RETURN LEN(buffer$)
ENDFUNCTION
oops ;)
:enc: It's not often I find a fault in something you've written Gernot! *laugh*
You do find a lot of my bugs. Unfortunately :P
Better find bugs early than late :-)