READ AND COPY .BMP FILE

[Richard Kann]

Hi,

I am on Jbase 3.4.10 <windows>. I am trying to use jbase to read a .BMP
file and then write it out as another name. The problem is both the READ
and OSREAD commands seem to alter the file so it is garbage once it
writes out again. I have also found that with JPEG files. Is there a set
of commands to read and write a windows file without the system altering
those files?

Bottom line I am trying to copy and rename a file in windows via jbase.

Richard Kann
Comp-Ware Systems

[Jim Idle]

See documentation for the IOCTL function, which will show you how to change a file descriptor into binary mode.

Jim

Richard Kann
Comp-Ware Systems

[alan....@verizon.net]

Couldn't you just execute the windows copy command?

Original Message:
-----------------
From: Richard Kann h...@comp-ware.net
Date: Wed, 19 Nov 2008 15:40:50 -0500
To: dan...@jbase.com, jB...@googlegroups.com
Subject: READ AND COPY .BMP FILE

Hi,

I am on Jbase 3.4.10 <windows>. I am trying to use jbase to read a .BMP
file and then write it out as another name. The problem is both the READ
and OSREAD commands seem to alter the file so it is garbage once it
writes out again. I have also found that with JPEG files. Is there a set
of commands to read and write a windows file without the system altering
those files?

Bottom line I am trying to copy and rename a file in windows via jbase.

Richard Kann
Comp-Ware Systems



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[x]

OPEN FNAME TO FILE ELSE THEN
IF IOCTL(FILE,JIOCTL_COMMAND_CONVERT,'RB,WB') THEN
READ REC FROM FILE, ID ...

[Gary Calvin]

Out of curiosity, what's wrong with "EXECUTE CHAR(255):'s':'COPY ...'"?

-Gary-

[Richard Kann]

Yes I could. Just figured that out before your email.

[Bruce Willmore]

Not at all efficient if dealing with large numbers of binary files.