On Fri, May 7, 2010 at 7:11 AM, Justin Smyth <[email protected]>wrote:
> Guys now that under win32 the issues with SendMessage & PostMessage have > been fixed under win64 i have a question to ask > > I have an application that i will need to send messages with payloads > between the application and other applications ( some Located on the same pc > and the other being located on another pc on the network ). > > I was tinkering with the idea to use a named pipe to send data between my > application and the remote end ( sometimes on the local pc , sometimes on > another pc ) and also to send information between my application and a > deskband object dll ( toolbar application thats run from a explorer thread > that hosts things like the start button ). > > Basically i would be sending a message between my application and another > instance of my application ( could be local or remote ) to tell the > Application to do something like stop , shutdown or process a new file ( and > that filename would be part of the message - hence maybe with a namedpipe i > might end up with different message sizes ) > > Would this be an issue on a namedpipe ? ie when in messagemode can one send > different size messages into the pipe ? or would this not work ? > > i only am considering this since if i dont use a named pipe i would need to > write the code twice and have one set to use the sendmessage/postmessage for > a local connection and another section of code to get to a remote pc ( using > tcpip ). > > I've allready code some code that uses a namedpipe working to comunicate > between the application and another instance on the same pc but havent got > around to doing so for the something like a deskband object yet. > > > Any ideas welcome , as i am just asking to clarify which would be the > better one to use. > For local communication i think there is a SimpleIPC implementation done in a CrossPlatform way, if you don't need extreme performance you could use TCP for everything maybe with Synapse/Indy, i used Indy a lot with Delphi, it's powerful and fast enough but quite large, i used Synapse only as a client and i'm not sure if it's slower than Indy, never used Named Pipes so i can't comment about their performance but i understand that they are not the same on every platform but maybe someone found a way to abstract them ? Razvan
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