vbscript - Is there a way to do non-blocking IO in VBS or a way to signal it witout a COM event? -

-

I have a script that comes with Windows Media Encoder. I launch it via WSH and it is STDIN, STDOUT, and STDERR.

The script starts encoding and if the encoding is encoded at the end then the encoding will check the position of the object, if the encoding knows the exit is waiting in a DO loop to have the pipe Installation (Internally loop prints just one period, and sleeps for about 2 seconds).

To exit cleanly, I would like to point out the script to stop encoding, which will allow it to drop from the loop is clear.

I do not want (or need) a COM object implemented in our app that has started the script - otherwise, I only trigger an event. (I think if it is easier than I would rethink to think to C ++)

I just thought about sending a character through STDIN to get out But the problem is that WScript.stdin has all the methods for block. Is there no way to read from Stadin or to examine the characters?

Is it possible to make a thread in VBS? As far as I can tell, you can only lauch other processes.

After

VBS has been single and you can use any non-blocker call in WScript object .

The classic VBS clause is to use as a file system object to signal asynchronous signals. Your calling process and VBScript must be agreed on the folder location that is monitored (now called c: \ temp to call it).

During the initialization, your script performs: - 

  Dim FSO: set FSO = Create Object ("Scripting.FileSystem Object")

In your code the loop is: - 

  If fso.FileExists ("C: \ temp \ signal.dat") then fso.DeleteFile "c: \ temp \ signal.dat" ' // Clean and Exit Loop End If

you are calling

its ugly but it works.

creates a file named "c: \ temp \ signal.dat" to give this script only the script instructions.


Comments

Post a Comment

Popular posts from this blog

c# - ListView onScroll event -

-
I am programming a simple C # application, and I need a Scallow event on the list view. So I inherited the original ListView class created in ListviewEx witch. I found out how to locate the scroll message from WinAPI and I modified the WndProc method. Now I have this WndProc: protected override zero WndProc (Ref message message) {base.WndProc (Ref I); If (m.msg == WM_VSCROLL) {onScroll (This, New EventArgs ()); }} But the problem is, I do not know how to know about scrolling information. This data should be in wParam, but there is a LOWORD macro ++ like in C in C # and I switch to find the criteria like SB_ below, SB_ENDSCROLL, SB_PAGEUP etc. there any way Need to change the LOWORD macro from C #? Or any other way to find the necessary parameters about scrolling? You can define the WParam constants as the following: Private const int WM_HSCROLL = 0x114; Private Constant WM_VSCROLL = 0x115; Private contact int SBHOZZ = 0; Private Consultant SB_VERT = 1; Private Con...
Read more

PHP - get image from byte array -

-
I am trying to create a back-end for my mobile application. I am sending the content of an image in the body of the HTTP request (output stream) as a byte array, I want to read this stream of bytes in PHP scripts and take back an image. Can anyone tell me how can I do this? Thank you. You can obtain the request body $ body = Reading from file_get_contents ('php: // input'); What you do with that data Depending on you, you can write the data in a file as you mentioned that this is image data, you can drop the data into the object can do. Another option is to use and load the image.
Read more

Linux Terminal Problem with Non-Canonical Terminal I/O app -

-
I have a small app written in C to run on Linux. Part of the app accepts user-input from keyboard , And it uses non-canonical terminal mode so that it can respond to each keystroke. The section of the code that accepts input is a simple task that is called repeatedly in the loop: char get_input () {char C = 0; Int res = reading (input_tamille, & amp; c, 1); If (RSS == 0) 0 returns; If (res == -1) {/ * snip error handling * /} return c; } It reads a letter from the terminal if there is no input within a given time limit, (c_cc [VTIME] value in the vocabulary structure), read () 0 And get_input () is called again It all works very well, I have recently discovered that if you run this app in a terminal window, and then the app Close the terminal window without ending, the app will not exit Received, but CPU intensive launches into an infinite loop, where the read () returns 0 without waiting continued. So how can I get out of the apple if it runs from the terminal win...
Read more