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We are programmatically creating PDF using our in house lib (C++) by adding all the required objects so that PDF readers can render them properly. Currently we are enhancing the lib to support digital signatures in PDF. Our users will use USB token or Windows certificates to sign the PDF. On studying raw PDF file with digital signature, we were able to make sense of all the objects except for the contents of Sig type object.

Im trying to create a multithreaded namedpipe server as outlined in the msdn sample here https://docs.microsoft.com/en-us/windows/win32/ipc/multithreaded-pipe-server but Im trying to restrict the namedpipe to access by adminstrators group members only.

The example works correctly when no SECURITY_ATTRIBUTES structure is specified but when an SA is specified the first call is successful, but following calls to CreateNamedPipe fail as long as the first pipe is listening or communicating with a client. The create call fails, usually with ACCESS_DENIED, but sometimes with error 1305 The revision level is unknown. When the first pipe closes due to client disconnecting the following call will be successful for the next createnamedpipe call but will in turn fail once that pipe has a client.

I have tried multiple values for the grfInheritance field with no avail. This is my first adventure into explicitly specifying SECURITY so forgive me if I have missed something obvious. Note that in the Function that calls createnamedpipe I create a new SA structure with each create attempt but I have also tried creating one and sharing it outside the create loop.

Relevant code follows:

function that creates the pipe:

My goal is to wrap Windows Thread API with my own struct.

Specifically, I want to use function_impl() as a wrapper for function() and have each instance of Thread create a Windows thread with it's own function().

First time using IO Completion Ports. I'm having an issue where the GetQueuedCompletionStatus returns a Null for the Completion Key, which I am using to pass a data struct with handles for other portions of the code. The GetQueuedCompletionStatus seems to be triggering off messages received just fine otherwise.

I tried to include just the code involving the IO Completion ports:

The Data Structs:

I've used Martin Prikryl's code for my Inno Setup project. This is the link to his code:

How to make Stop and Pause/Resume/Play music buttons in Inno Setup

I used it with some tweaks on it but the problem is that the music glitches when I finish it.

For example, if the music is working while installing something and when I finally finish the setup, I still hear the glitched Audio for about 3 seconds! It's very annoying!

I think the problem is that we need to unload Music dll's before the installer finishes, as we do with the skin.

I hope you understood my situation and thanks in advance!

This is my Full code (it's not well-arranged sorry) :

I have a microcontroller which I communicate with my windows pc, through FT232RL. On the computer side, I am making a C-library to send and receive data, using windows API.

I have managed to:

1. Receive data (or multiple receives),
2. Transmit data (or multiple transmits),
3. First transmit (or multiple transmits) and then receive data (or multiple receives)

But I have not managed to:

1. Transmit Data and then receive.

If I receive anything, and then try to transmit, I get error. So, I guess when I receive data, there is a change in configuration of the HANDLE hComm, which I cannot find.

So the question is, what changes to my HANDLE hComm configuration when I receive data, which does not allow me to transmit after that?

Here is my code/functions and the main() that give me the error. If I run this, I get this "error 6" -screenshot of the error down below-:

I have written the following assembly code.
It's displaying the output of writeint as +0
But When I put the debug point on the line before writeint and look at the registers
I see EAX=0000BFBE. As per my understanding writeint should print the value of EAX
register. What could be the reason that it's showing +0?

These two are definitions of INPUT and KEYBDINPUT.

In msdn,