delphi - How to sent text string to service? -


i have desktop application , service. how can send string desktop application service , handle in service?

i don't want use sockets because may blocked windows firewall.

if don't want use network transport simplest way cross-session ipc use named pipe. main thing take care on need supply security attributes when creating named pipe. without doing won't succeed in cross-session communications. code looks this:

var   sa: tsecurityattributes; .... sa.nlength := sizeof(sa); sa.binherithandle := true; convertstringsecuritydescriptortosecuritydescriptor(   'd:(a;oici;grgw;;;au)',//discretionary acl allow read/write access authenticated users   sddl_revision_1,   sa.lpsecuritydescriptor,   nil ); fpipe := createnamedpipe(   '\\.\pipe\mypipename',   pipe_access_duplex,   pipe_type_message or pipe_readmode_message or pipe_wait,   pipe_unlimited_instances,   0,//don't care buffer sizes, let system decide   0,//don't care buffer sizes, let system decide   100,//timout (ms), used clients, needs cover time between disconnectnamedpipe , connectnamedpipe   @sa ); localfree(hlocal(sa.lpsecuritydescriptor)); if fpipe=error_invalid_handle begin   ;//deal error end;

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