Okay... so I'm getting ready to be laughed at here :). I'm trying to pass string information between unrelated gauges, but I keep getting a big fat blank.//Client - first gaugeMODULE_VAR gnddata;char testdata[24]="Mary had a little lamb\0";PVOID pdata = gnddata.var_ptr;//---------------------------------------------------------------------------------------------------------void FSAPI info_update (PGAUGEHDR pgauge, int service_id, UINT32 extra_data){ switch(service_id) { case PANEL_SERVICE_PRE_INITIALIZE: initialize_var_by_name (&gnddata, "gnddata"); break; case PANEL_SERVICE_PRE_UPDATE: if(gnddata.var_ptr!=NULL)pdata=testdata; break: }}Now, I know at this point pdata points to 'Mary had a little lamb' becauseFLOAT64 FSAPI string1(PELEMENT_STRING pelement){ sprintf(pelement->string, "%s",pdata); return 0;}prints 'Mary had a little lamb'. It's at the other end of the business that it all falls down...//Server - second gaugechar gnddata[30]; //New shared variablechar *mary;char lamb[30];//---------------------------------------------------------------------------------------------------------void FSAPI debug_update (PGAUGEHDR pgauge, int service_id, UINT32 extra_data){ switch(service_id) { case PANEL_SERVICE_PRE_INSTALL: register_var_by_name (&gnddata, TYPE_PVOID, "gnddata"); break; case PANEL_SERVICE_PRE_UPDATE: mary=(char *)gnddata; strncpy(lamb,gnddata,sizeof(lamb)-1); break; case PANEL_SERVICE_PRE_KILL: unregister_var_by_name ("gnddata"); break; }}The following print statements all return a blank//---------------------------------------------------------------------------------------------------------FLOAT64 FSAPI string1(PELEMENT_STRING pelement){// sprintf(pelement->string, "%s",gnddata);// sprintf(pelement->string, "%s",mary); sprintf(pelement->string, "%s",lamb); return 0;}but being C, of course any one of them compiles correctly. WTH am I failing to do right?-Dai

I think It'll be easier in this case to think in terms of the server first then the client.I tried as best as i could to simplifty what you are doing. I didn't actually compile itbut I believe it will bring you closer to your goal.//---------------------------------------------------------------------------------------------------------//Server char server_gnddata[30] = "Mary had a little lamb\0"; ...void FSAPI debug_update (PGAUGEHDR pgauge, int service_id, UINT32 extra_data){ switch(service_id) { case PANEL_SERVICE_PRE_INSTALL: register_var_by_name (&server_gnddata, TYPE_PVOID, "gnddata"); break; case PANEL_SERVICE_PRE_KILL: unregister_var_by_name ("gnddata"); break; }}//-----------------------------------------------------------------//ClientMODULE_VAR client_gnddata;PVOID pdata; ...void FSAPI info_update (PGAUGEHDR pgauge, int service_id, UINT32 extra_data){ switch(service_id) { case PANEL_SERVICE_PRE_INITIALIZE: initialize_var_by_name (&client_gnddata, "gnddata"); break; case PANEL_SERVICE_PRE_UPDATE: if(client_gnddata.var_ptr!=NULL) { pdata= (PVOID)client_gnddata; } break: }}...FLOAT64 FSAPI string1(PELEMENT_STRING pelement){ sprintf(pelement->string, "%s",pdata); return 0;}//------------------------------------------------------Regards.Ernie.

Hi ErnieLong time no hear and apologies for the delayed reply! :( So it appears that I've been trying to do this entirely backwards.... I'm still finding one problem during compile time though:- if(client_gnddata.var_ptr!=NULL) { pdata=(PVOID)client_gnddata; }returns: error C2440: 'type cast' : cannot convert from 'MODULE_VAR' to 'PVOID' which I can partially understand as MODULE_VAR is a struct, but equally if(client_gnddata.var_ptr!=NULL) { pdata=(PVOID)client_gnddata.var_value.p; }compiles and prints '(null)'. Any ideas.....?-Dai

Try changing this line:register_var_by_name (&server_gnddata, TYPE_PVOID, "gnddata");to this:register_var_by_name (&server_gnddata[0], TYPE_PVOID, "gnddata");

No luck.... I also tried [2] in case you were directing the variable at VAR_TYPE, then everything else in between just because I could. The reason I'm trying to do this is to try and create a 'drop-in' MFD-type gauge that is a pure dumb terminal and receives all its display information (strings and numeric data) from other gauges. In truth, it's more of an exercise than a necessity as it could all be done via a standard multigauge. What started this was the realisation that in the 'Sharing Variables' section of the sd2gau series I had always blithely talked about passing data between unrelated gauges and always used numbers as the illustration. Then I realised that I really didn't have much of a clue about passing strings in FS and I wanted to add that information into the next issue. So here I am.... but it's not a gamebreaker if I don't succeed and I'm very grateful for all the help I've received.-Dai

Hello Dai,Try this..if(client_gnddata.var_ptr!=NULL){ pdata= (PVOID)client_gnddata.var_ptr;}Regards.Ernie.

(Dai lowers head to desk very slowly in gratitude) Thank you Ernie :(- that's it. The one thing I didn't try after I'd changed the code on your first suggestion because I'd gotten so used to seeing _ptr print '(null)'. Of course it's always the one thing you didn't try that always works... :( :( Again, many thanks to those who tried to help. It'll be in the next issue of sd2gau.-Dai