Thanks Robert and Geoff for your help. I am doing everything suggested by
you, but it is still not working. What I found is that the pData->dlRefP
value is 0x4FFFF every time. This seems odd to me.
Is it possible that for some reason the Palm OS is passing a wrong value for
DL reference or some error code? I am testing on POSE 3.0a3 with a Palm Vx
ROM.
The knowledge base is down since yesterday, can somebody send me the article
"Calling SyncCallRemoteModule returns a SYNCERR_UNKNOWN_REQUEST. What is
going wrong?"
Thanks.
-Sugho-
>From: Robert McKenzie <[EMAIL PROTECTED]>
>Reply-To: [EMAIL PROTECTED]
>To: "'[EMAIL PROTECTED]'" <[EMAIL PROTECTED]>
>Subject: SynCallRemoteModule problem
>Date: Wed, 5 Jan 2000 10:39:40 -0800
>
>Sugho-
>
> First off, you should consult the following FAQ:
>
>"Calling SyncCallRemoteModule returns a SYNCERR_UNKNOWN_REQUEST. What is
>going wrong?"
>
>which I found by doing a search on the knowledge base.
>
>here is the code I use in PilotMain, based on that FAQ
>(as the knowledge base seems to have gone on a trip to bora-bora today...)
>Note that I am not passing ANY data with the SyncCallRemoteModule call.
>
>------------- start code snippet ----------------------
> else if (cmd == sysAppLaunchCmdHandleSyncCallApp) {
> SysAppLaunchCmdHandleSyncCallAppType* theCommandPtr;
> DlkCallAppReplyParamType theReplyParams;
>
> // Do the real processing here.
> HandleSyncCallApp();
>
> // Cast the cmdPBP to a SysAppLaunchCmdHandleSyncCallAppType
> // pointer so that we can work with it.
> theCommandPtr = (SysAppLaunchCmdHandleSyncCallAppType*)cmdPBP;
>
> // Create the reply to send back to the desktop.
> // First clear out all the fields.
> // This is necessary so that the reserved fields are set to NULL.
> MemSet(&theReplyParams, sizeof(DlkCallAppReplyParamType), 0);
>
> // Set the size of the reply. This is required.
> theReplyParams.pbSize = sizeof(DlkCallAppReplyParamType);
>
> // Fill in the DL reference pointer. This is required.
> theReplyParams.dlRefP = theCommandPtr->dlRefP;
>
> // Set the handled field to true.
> // This is required to let the desktop know that the
> // sysAppLaunchCmdHandleSyncCallApp was handled.
> // If you don't set this to true,
> // the call to SyncCallRemoteModule will return
>SYNCERR_UNKNOWN_REQUEST.
> theCommandPtr->handled = true;
>
> // Set the replyErr field by passing the reply parameters to
>DlkControl.
> // This is required for the DLServer to properly handle the reply
>request.
> theCommandPtr->replyErr = DlkControl(
> dlkCtlSendCallAppReply,
> &theReplyParams,
> NULL);
>
>
> } // end sync calling app launch
>------------- end code snippet ----------------------
>
>The only existent documentation on DlkControl lies in the header file
><DLServer.h>.
>You must include this header file.
>See the comments to the DlkCtlEnum enumeration and the
>DlkCallAppReplyParamType struct.
>
>You should also note the (so far as I know absolutely undocumented)
>requirement
>that the DlkControl call happen within 2 seconds of the conduits
>SyncCallRemoteModule call.
>If you violate this restriction, the DlkControl call WILL bomb -- sometimes
>in a
>quite spectacular fashion.
>
>I hope that you find this of use.
>
>-Robert McKenzie
><[EMAIL PROTECTED]>
>
>
>
>From: [EMAIL PROTECTED]
>Reply-To: [EMAIL PROTECTED]
>To: [EMAIL PROTECTED]
>Subject: Re: SyncCallRemoteModule problem
>Date: Wed, 5 Jan 2000 10:20:24 -0800
>
>
>
>You will get an error code of dlkErrParam if one of the following:
>
>1. dlkCtlSendCallAppReply in your call to DlkControl is not a valid
>op-code.
>(probably OK in your case)
>
>2. Reply.dlRefP == NULL (might want to check this)
>
>In addition, the debug ROMS will give more information on the particular
>error
>you are getting (1 or 2). I don't see anything obviously wrong with your
>code.
>Also, there is a Knowledge Base article describing how to use
>SyncCallRemoteModule.
>
>-Geoff Richmond
>Palm Developer Support
>
>
>
>
>"Sudipta Ghose" <[EMAIL PROTECTED]> on 01/04/2000 03:46:22 PM
>
>Please respond to [EMAIL PROTECTED]
>
>Sent by: "Sudipta Ghose" <[EMAIL PROTECTED]>
>
>
>To: [EMAIL PROTECTED]
>cc: (Geoff Richmond/HQ/3Com)
>Subject: SyncCallRemoteModule problem
>
>
>
>
>Hi all,
>
>I am exploring the SyncCallRemoteModule function. I am able to get the
>launch code in my palm app, but the DlkControl call in the palm always
>fails
>giving an error code of 3485 (dlkErrParam). Any idea what is going wrong?
>By
>the way, I couldn't find any documentation on DlkControl, or any DLServer
>calls. I had to figure it out form the header files (may be I am making
>some
>silly mistakes). Are they left out intentionally?
>
>-Sugho-
>
>Here is the code:
>
>Conduit:
>
> char *sParam = new char[4];
> char *sRes = new char[4];
> CCallModuleParams Params;
>
> strcpy(sParam, "ZZZ");
> Params.m_dwCreatorID = 'tps6';
> Params.m_dwTypeID = 'appl';
> Params.m_wActionCode = 999; //just a test
> Params.m_dwParamSize = sizeof(long);
> Params.m_pParam = sParam;
> Params.m_dwResultBufSize = 4;
> Params.m_pResultBuf= sRes;
>
> lDummy = SyncCallRemoteModule(&Params);
>
>
>Palm app:
>
> switch (i_nCmd)
> {
> case sysAppLaunchCmdHandleSyncCallApp:
> {
> DlkCallAppReplyParamType Reply;
> SysAppLaunchCmdHandleSyncCallAppType *pData =
> (SysAppLaunchCmdHandleSyncCallAppType
>*)
>i_pCmdPB;
>
> pData->handled = true;
> MemSet(&Reply, sizeof(DlkCallAppReplyParamType), 0);
> Reply.pbSize = sizeof(DlkCallAppReplyParamType);
> Reply.resultP = "AAA"; //just a test
> Reply.dwResultSize = StrLen(Reply.resultP) + 1;
> Reply.dlRefP = pData->dlRefP;
> Reply.dwResultCode = 0;
> nError = DlkControl(dlkCtlSendCallAppReply, &Reply, NULL);
> }
> break;
>
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