Re: send function keys to a legacy DOS program
Hello, On Sun, Mar 20, 2011 at 06:59:46PM -0700, Justin Ezequiel wrote: On Mar 20, 7:30 am, Alexander Gattin xr...@yandex.ru wrote: You need to place 2 bytes into the circular buffer to simulate key press. Lower byte is ASCII code, higher byte is scan code (they are the same for functional keys, whe using default keycode set#1): F5: 0x3F 0x3F F2: 0x3C 0x3C F7: 0x41 0x41 I'm not sure regarding the ASCII part. I think it might need to be set to 0x00 for all functional keys instead of 0x3F/0x3C/0x41, but probably no application actually cares. Another thing is that you may need to send key release after key press in order for the application to trigger the F5/F2/F7 event. I'm not sure what the scan codes for F5/F2/F7 releases are, but think that they may be: F5: 0xBF F2: 0xBC F7: 0xC1 -- With best regards, xrgtn -- http://mail.python.org/mailman/listinfo/python-list
Re: send function keys to a legacy DOS program
Alexander Gattin wrote: Another thing is that you may need to send key release after key press in order for the application to trigger the F5/F2/F7 event. I'm not sure what the scan codes for F5/F2/F7 releases are, but think that they may be: F5: 0xBF F2: 0xBC F7: 0xC1 True. The key-release codes are the key-press codes (the key numbers) but with the high-order bit set. Mel. -- http://mail.python.org/mailman/listinfo/python-list
Re: send function keys to a legacy DOS program
On Tue, Mar 29, 2011 at 9:59 PM, Alexander Gattin xr...@yandex.ru wrote: I'm not sure regarding the ASCII part. I think it might need to be set to 0x00 for all functional keys instead of 0x3F/0x3C/0x41, but probably no application actually cares. Another thing is that you may need to send key release after key press in order for the application to trigger the F5/F2/F7 event. I'm not sure what the scan codes for F5/F2/F7 releases are, but think that they may be: F5: 0xBF F2: 0xBC F7: 0xC1 -- With best regards, xrgtn appreciate all the help. unfortunately, my hard drive crashed and badly. thus was unable to investigate this further. as I was running out of time, we're now going for a reimplementation of the legacy barcode program. was fortunate to find an implementation that gives the same output (we're testing thoroughly and we may have found a winner) oh btw, it was a seagate 250GB drive for my dell laptop may need to pay somebody to try to recover my personal files. all work files are in version control so they're ok -- http://mail.python.org/mailman/listinfo/python-list
Re: send function keys to a legacy DOS program
On 3/10/2011 4:58 PM, Justin Ezequiel wrote: Greetings, We have an old barcode program (MSDOS and source code unavailable.) I've figured out how to populate the fields (by hacking into one of the program's resource files.) However, we still need to hit the following function keys in sequence. F5, F2, F7 Is there a way to pipe said keys into the program? I know it's not really a python problem but I got nowhere else to go. I've tried other barcode solutions but none give the same output. Look into DOSbox. http://www.dosbox.com It's an open-source software emulator for an x86 machine running DOS. So you can go into the emulator and connect to the keyboard or screen from another program. John Nagle -- http://mail.python.org/mailman/listinfo/python-list
Re: send function keys to a legacy DOS program
On Mar 10, 9:58 pm, Justin Ezequiel justin.mailingli...@gmail.com wrote: Greetings, We have an old barcode program (MSDOS and source code unavailable.) I've figured out how to populate the fields (by hacking into one of the program's resource files.) However, we still need to hit the following function keys in sequence. F5, F2, F7 Is there a way to pipe said keys into the program? I know it's not really a python problem but I got nowhere else to go. I've tried other barcode solutions but none give the same output. You should try these links: http://www.rhinocerus.net/forum/lang-asm-x86/254441-re-how-write-char-keyboard-buffer.html http://bytes.com/topic/c/answers/212952-keyboard-buffer http://bytes.com/topic/c/answers/747883-writing-into-keyboard-buffer-aix -- http://mail.python.org/mailman/listinfo/python-list
Re: send function keys to a legacy DOS program
On Mar 20, 7:30 am, Alexander Gattin xr...@yandex.ru wrote: On Sun, Mar 20, 2011 at 12:52:28AM +0200, You need to place 2 bytes into the circular buffer to simulate key press. Lower byte is ASCII code, higher byte is scan code (they are the same for functional keys, whe using default keycode set#1): F5: 0x3F 0x3F F2: 0x3C 0x3C F7: 0x41 0x41 -- With best regards, xrgtn looks promising. will give this a try. thanks! -- http://mail.python.org/mailman/listinfo/python-list
Re: send function keys to a legacy DOS program
Hello, On Thu, Mar 10, 2011 at 04:58:53PM -0800, Justin Ezequiel wrote: We have an old barcode program (MSDOS and source code unavailable.) I've figured out how to populate the fields (by hacking into one of the program's resource files.) However, we still need to hit the following function keys in sequence. F5, F2, F7 Is there a way to pipe said keys into the program? It's a very old and good known trick IMO. You just need to write keycodes to kbd ring buffer in BIOS data area (I don't remember exact address, soemewhere in 1st 4kbytes of PC memory), then wait till the scancode gets consumed. I'd put scancode feeding code into timer interrupt handler. -- With best regards, xrgtn -- http://mail.python.org/mailman/listinfo/python-list
Re: send function keys to a legacy DOS program
On Sun, Mar 20, 2011 at 12:52:28AM +0200, Alexander Gattin wrote: On Thu, Mar 10, 2011 at 04:58:53PM -0800, Justin Ezequiel wrote: We have an old barcode program (MSDOS and source code unavailable.) I've figured out how to populate the fields (by hacking into one of the program's resource files.) However, we still need to hit the following function keys in sequence. F5, F2, F7 Is there a way to pipe said keys into the program? It's a very old and good known trick IMO. You just need to write keycodes to kbd ring buffer in BIOS data area (I don't remember exact address, soemewhere in 1st 4kbytes of PC memory), then wait till the scancode gets consumed. I'd put scancode feeding code into timer interrupt handler. Taken from RBIL/MEMORY.LST (http://www.cs.cmu.edu/~ralf/interrupt-list/inter61c.zip): K-M0040001A-- MEM 0040h:001Ah - KEYBOARD - POINTER TO NEXT CHARACTER IN KEYBOARD BUFFER Size: WORD SeeAlso: MEM 0040h:001Ch,MEM 0040h:0080h,MEM 0040h:0082h,INT 16/AH=00h K-M0040001C-- MEM 0040h:001Ch - KEYBOARD - POINTER TO FIRST FREE SLOT IN KEYBOARD BUFFER Size: WORD SeeAlso: MEM 0040h:001Ah,MEM 0040h:001Eh,MEM 0040h:0080h,MEM 0040h:0082h SeeAlso: INT 16/AH=00h K-M0040001E-- MEM 0040h:001Eh - KEYBOARD - DEFAULT KEYBOARD CIRCULAR BUFFER Size: 16 WORDs SeeAlso: MEM 0040h:001Ah,MEM 0040h:001Ch,MEM 0040h:0080h,MEM 0040h:0082h SeeAlso: INT 16/AH=00h,INT 16/AH=05h Buffer is considered empty if word[0x41A]==word[0x41C] IIRC. You need to place 2 bytes into the circular buffer to simulate key press. Lower byte is ASCII code, higher byte is scan code (they are the same for functional keys, whe using default keycode set#1): F5: 0x3F 0x3F F2: 0x3C 0x3C F7: 0x41 0x41 -- With best regards, xrgtn -- http://mail.python.org/mailman/listinfo/python-list
Re: send function keys to a legacy DOS program
On Mar 10, 7:58 pm, Justin Ezequiel justin.mailingli...@gmail.com wrote: Greetings, We have an old barcode program (MSDOS and source code unavailable.) I've figured out how to populate the fields (by hacking into one of the program's resource files.) However, we still need to hit the following function keys in sequence. F5, F2, F7 Is there a way to pipe said keys into the program? Use expect on unix or pexpect if you're looking for the python implementation. -- http://mail.python.org/mailman/listinfo/python-list
Re: send function keys to a legacy DOS program
On 3/10/2011 4:58 PM Justin Ezequiel said... Greetings, We have an old barcode program (MSDOS and source code unavailable.) I've figured out how to populate the fields (by hacking into one of the program's resource files.) However, we still need to hit the following function keys in sequence. F5, F2, F7 Is there a way to pipe said keys into the program? I know it's not really a python problem but I got nowhere else to go. I've tried other barcode solutions but none give the same output. WSH sendkeys? Emile -- http://mail.python.org/mailman/listinfo/python-list
send function keys to a legacy DOS program
Greetings, We have an old barcode program (MSDOS and source code unavailable.) I've figured out how to populate the fields (by hacking into one of the program's resource files.) However, we still need to hit the following function keys in sequence. F5, F2, F7 Is there a way to pipe said keys into the program? I know it's not really a python problem but I got nowhere else to go. I've tried other barcode solutions but none give the same output. -- http://mail.python.org/mailman/listinfo/python-list
Re: send function keys to a legacy DOS program
On 11/03/2011 00:58, Justin Ezequiel wrote: Greetings, We have an old barcode program (MSDOS and source code unavailable.) I've figured out how to populate the fields (by hacking into one of the program's resource files.) However, we still need to hit the following function keys in sequence. F5, F2, F7 Is there a way to pipe said keys into the program? I know it's not really a python problem but I got nowhere else to go. I've tried other barcode solutions but none give the same output. One (hacky) solution is to use the sendkeys module: http://www.rutherfurd.net/python/sendkeys/ First enumerate the windows and get the title and handle of each: import win32gui def enum_windows(accept=None): def callback(handle, data): title = win32gui.GetWindowText(handle) windows.append((title, handle)) windows = [] win32gui.EnumWindows(callback, None) return windows Identify the target window's handle by its title and give that window the input focus: win32gui.SetForegroundWindow(handle) Then use the sendkeys module to simulate the keypresses. -- http://mail.python.org/mailman/listinfo/python-list
