Windows ce pipes

It's slow, kludgy, and highly prone to errors. People, please don't just answer questions when you've not used the platform just to try to gain reputation points. If you don't know the platform, let someone else help the guy instead of sending him on a wild goose chase. You've covered pretty much all of the bases available; COM, pipes, sockets, memory mapped files. All processes in Windows have completely separate memory spaces, so you can't share anything without using one of those IPC mechanisms.

On Windows Mobile I seem to remember that all processes are mapped into the same address space. So, create message windows in both processes with known names and or class names and use FindWindow in each process to find the other. Stack Overflow for Teams — Collaborate and share knowledge with a private group.

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The server-side function for accepting a connection is ConnectNamedPipe. Named pipes can be used to provide communication between processes on the same computer or between processes on different computers across a network. If the server service is running, all named pipes are accessible remotely.

Skip to main content. This browser is no longer supported. A pipe can be created using a combination of these flags by ORing them together. Open Mode. The pipe is bidirectional: Both the server and client processes can read from and write data to the pipe. The flow of data in the pipe goes from server to client only.

The flow of data in the pipe goes from client to server only. Works only for byte-mode pipes. Functions writing to a named pipe do not return until the data written is transmitted across the network and is in the pipe's buffer on the remote computer.

Allows your application to have write access to the named pipe's DACL. Allows your application to have write access to the named pipe's SACL. Allows your application to have write access to the named pipe's owner and group SID. Figure describes the flag combinations further and shows the flow of data between a client and a server. Figure Mode flags and flow direction. This flag works only for byte-mode named pipes when the client and the server are on different computers.

The last set of dwOpenMode flags described in Table controls the server's ability to access the security descriptor that is created by a named pipe. If your application needs to modify or update the pipe's security descriptor after the pipe is created, you should set these flags accordingly to permit access.

For example, if you want to deny access to a particular user who has access rights to your pipe, you can modify the pipe's DACL using security API functions. CreateNamedPipe's dwPipeMode parameter specifies the read, write, and wait operating modes of a pipe. Table describes all the available mode flags that can be used. The flags can be issued by ORing one flag from each mode category. This means that when you read and write data to a pipe, you do not have to balance each read and write because your data does not have any message boundaries.

For example, if a sender writes bytes to a pipe, a receiver might want to read bytes at a time until it receives all of the data. For example, if a sender writes a byte message to a pipe, the receiver must provide the ReadFile function a byte or larger buffer when reading data.

The message delimiters will be ignored in the data stream.