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Date/Time: Sun, 22 Dec 2024 07:35:26 +0000
[User Discussion] - Different values in SC and VS during debugging
View Count: 1146
| [2015-04-18 21:36:53] |
| zaza.pups - Posts: 3 |
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I write simple dll with shared memory for one integer variable for testing calls functions from external dll from ASCIL dll and try to debug my ASCIL study with Visual Studio. I have differetn values in SC and VS. Can anyone help with this?
Date Time Of Last Edit: 2015-04-18 21:44:01
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 SC_External_Calls_Test.cpp - Attached On 2015-04-18 21:32:51 UTC - Size: 1.41 KB - 476 views M_GV_d.cpp - Attached On 2015-04-18 21:34:00 UTC - Size: 394 B - 425 views SharedDataSegment.h - Attached On 2015-04-18 21:34:21 UTC - Size: 184 B - 473 views |
ww.jpg| [2015-04-19 05:44:38] |
| ejtrader - Posts: 688 |
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it appears like - result doesn't seem to be 1 anytime when called from scdll. can you try to comment this line and see if the value is even being picked up atleast? // if(result == 1) Date Time Of Last Edit: 2015-04-19 05:44:50
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| [2015-04-19 12:07:28] |
| zaza.pups - Posts: 3 |
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Thanks for your feedback, ejtrader, you are right. The reason for the debugging is that I had messages in a log "This Custom DLL study may cause Sierra Chart to be unstable until you remove the study from your chart and restart Sierra Chart." Any dll, from wich one would like to call some functhion, should be plased to the SC Data folder, not system32 or another. |
| [2015-04-19 15:02:07] |
| ejtrader - Posts: 688 |
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zaza - Here is a sample code you can use for this. typedef int (__cdecl *SETINT)(int); typedef int (__cdecl *GETINT)(void); HINSTANCE hinstLib = LoadLibrary(TEXT("F:\\temp\\M_GV_d.dll")); SETINT SetInt = (SETINT) GetProcAddress(hinstLib, "GV_SetInteger"); GETINT GetInt = (GETINT) GetProcAddress(hinstLib, "GV_GetInteger"); SCSFExport scsf_ExternalCallTest(SCStudyInterfaceRef sc) { SCSubgraphRef Volume = sc.Subgraph[0]; if (sc.SetDefaults) { sc.GraphName = "ExternalCallTest"; sc.StudyDescription = "ExternalCallTest."; sc.AutoLoop = 1; Volume.Name = "Volume from Dll"; Volume.DrawStyle = DRAWSTYLE_BAR; Volume.LineWidth = 2; Volume.PrimaryColor = RGB(0, 255, 0); sc.FreeDLL = FREEDLL; return; } if (sc.LastCallToFunction) { FreeLibrary(hinstLib); return; } SetInt((int)sc.Volume[sc.Index]); Volume[sc.Index] = GetInt(); return; } http://www.sierrachart.com/image.php?l=1429469107752.png Date Time Of Last Edit: 2015-04-19 19:16:47
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| [2015-04-19 19:27:09] |
| zaza.pups - Posts: 3 |
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Thank you, now I have no problems, but can't understand why sometimes studies couse "This Custom DLL study may cause Sierra Chart to be unstable until you remove the study from your chart and restart Sierra Chart." reaction of Sierra. I attach my project, works good. |
| f.7z - Attached On 2015-04-19 19:27:04 UTC - Size: 1.51 MB - 413 views |
| [2015-04-19 19:29:03] |
| ejtrader - Posts: 688 |
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try to use sc.FreeDLL = 0 and see if you still experience the custom dll issue.
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