TWAIN User Interface freezes when closing (even if no scan)

[kbonsall]

Hey there,

My application uses TWAIN for scanning and it has recently been causing a lot of freezing with more than one type of scanner.

The issue is that when the User Interface is presented to the user, even if they immediately click Close, the UI attempts to close and freezes causing the calling program to be unresponsive.

The kicker is, I have two computers trying to replicate this: Both are Windows 7 Pro 64bit. Using the same scanner (Fujitsu Fi-5110c). Using the same TWAIN driver for the scanner. Using the same versions of all twain files and located in the same paths on each computer.
Computer 1 – Freezes EVERY time I use the TWAIN driver for the fujitsu (does not freeze utilizing the fujitsu through WIA)
Computer 2 – NEVER freezes

To me, that is saying that it is not inside my application(code) rather it is an environment issue that I cannot pinpoint.
Any Help would be GREAT! I have search the web up and down but have not been able to find anything to help me at this point.

Thanks,
Kevin

[kbonsall]

Also, I downloaded the Dosadi logger that captures the log real time and here is what I got (The last line CLIENT DISCONNECTED) did not occur until I forced my application closed through task manager.

Dosadi Diagnostic Logging 3.98.02

TWAIN_SelectImageSource(0x00091106)...

OpenSourceManager(00091106)

LoadDSM

State: PRESESSION -> DSM_LOADED

LicenseReport: nLic=1. bWizAvail=0

Mgr(1, DAT_PARENT, MSG_OPENDSM) [0ms]=> SUCCESS

State: DSM_LOADED -> DSM_OPEN

Mgr(1, DAT_IDENTITY, MSG_USERSELECT)

[12355ms]=> SUCCESS

DropToState(1)

UnloadSourceManager

CloseDSM

FlushMsgQ<

>

LicenseReport: nLic=1. bWizAvail=0

Mgr(1, DAT_PARENT, MSG_CLOSEDSM) [0ms]=> SUCCESS

State: DSM_OPEN -> DSM_LOADED

Destroying proxy window

FreeLibrary(hDSMLib)

State: DSM_LOADED -> PRESESSION

TWAIN_LogFile(7)

Start of log

Product          EZTwain Pro

EZTWAIN version: 3.20.0.22

This module:     C:MedflowAppEztwain3.dll

Calling Process: C:MedflowAppClinicalMenu.exe

Logging to:      c:eztwain.log

Universal time:  Tue May 07 20:29:20 2013

Local time:      Tue May 07 16:29:20 2013

OS:              Microsoft Windows XP (Build 2600) Service Pack 3

Current State:   PRESESSION

Loaded Libraries:

EZSymbol: Not loaded.

EZOcr: Not loaded.

EZDcx: Not loaded.

EZGif: Not loaded.

EZJpeg: Not loaded.

EZPdf: Not loaded.

EZPng: Not loaded.

EZTiff: Not loaded.

TWAIN_OpenDefaultSource()

OpenSourceManager(00000000)

LoadDSM

State: PRESESSION -> DSM_LOADED

LicenseReport: nLic=1. bWizAvail=0

Mgr(1, DAT_PARENT, MSG_OPENDSM) [15ms]=> SUCCESS

State: DSM_LOADED -> DSM_OPEN

Mgr(1, DAT_IDENTITY, MSG_OPENDS)

[250ms]=> SUCCESS

State: DSM_OPEN -> SOURCE_OPEN

Open Source:     "FUJITSU fi-5110Cdj"  Version 9-21  Vendor: "FUJITSU"

Mgr(1, DAT_IDENTITY, MSG_GETDEFAULT)

[218ms]=> SUCCESS

twid.ProductName=FUJITSU fi-5110Cdj

NegotiateSettings

SetXferMech(0)

DS(1,DAT_CAPABILITY,MSG_SET/ICAP_XFERMECH)(0)[0ms]=> SUCCESS/SUCCESS

SetUnits(0)

DS(1,DAT_CAPABILITY,MSG_SET/ICAP_UNITS)(0)[0ms]=> SUCCESS/SUCCESS

TWAIN_SetPixelType(1) DS(1,DAT_CAPABILITY,MSG_SET/ICAP_PIXELTYPE)(1)[0ms]=> SUCCESS/SUCCESS

TWAIN_SetResolution(200)

DS(1,DAT_CAPABILITY,MSG_SET/ICAP_XRESOLUTION)(200)[16ms]=> SUCCESS/SUCCESS

DS(1,DAT_CAPABILITY,MSG_SET/ICAP_YRESOLUTION)(200)[0ms]=> SUCCESS/SUCCESS

TWAIN_LogFile(1)

TWAIN_AcquireMultipageFile(0x00091106, C:MedflowApp4TC001B.tif)

AcquireMultipage

LicenseReport: nLic=1. bWizAvail=0

..Defaulting XferCount=-1

..Defaulting Feeder=1

..Defaulting AutoScan=1

..Defaulting AutoFeed=1

PreAcquire <<

NegotiateSettings

SelectFeeder(1)

DS(1,DAT_CAPABILITY,MSG_SET/CAP_FEEDERENABLED)(1)[0ms]=> SUCCESS/SUCCESS

IsFeederSelected

DS(1,DAT_CAPABILITY,MSG_GETCURRENT/CAP_FEEDERENABLED)[16ms]=> 1

SetAutoFeed(1)

SelectFeeder(1)

DS(1,DAT_CAPABILITY,MSG_SET/CAP_FEEDERENABLED)(1)[0ms]=> SUCCESS/SUCCESS

DS(1,DAT_CAPABILITY,MSG_SET/CAP_AUTOFEED)(1)[15ms]=> SUCCESS/SUCCESS

SetXferCount(-1)

DS(1,DAT_CAPABILITY,MSG_SET/CAP_XFERCOUNT)(-1)[0ms]=> SUCCESS/SUCCESS

SetAutoScan(1) DS(1,DAT_CAPABILITY,MSG_SET/CAP_AUTOSCAN)(1)[16ms]=> SUCCESS/SUCCESS

>> PreAcquire() => 1

TWAIN_SuppressErrorMessages(1) => 0

IsFeederSelected

DS(1,DAT_CAPABILITY,MSG_GETCURRENT/CAP_FEEDERENABLED)[0ms]=> 1

EnableSource(00091106)

LicenseReport: nLic=1. bWizAvail=0

DS(1,DAT_USERINTERFACE,MSG_ENABLEDS)

ui.ShowUI  = 1

ui.hParent = 0x00091106

ui.ModalUI = TRUE

[359ms]=> SUCCESS/SUCCESS

State: SOURCE_OPEN -> SOURCE_ENABLED

Disabling parent 0x00091106

BeginMultipageFile(C:MedflowApp4TC001B.tif)

LoadLibraryEx(C:MedflowAppEZJpeg.dll)

OK. Loaded EZJpeg.dll 1.10

LoadLibraryEx(C:MedflowAppEZTiff.dll)

EZTIFF Version = 1.52 OK. Loaded EZTiff.dll 1.52

[EZTiff] EZTiff 1.52

StartBgWriter

0 <= BeginMultipageFile

WaitForNativeXfer

WaitForXfer

Source enabled, wait for transition.

PMUSC<

Background Writer started

Dosadi Diagnostic Logging 3.98.02

received XFERREADY

State: SOURCE_ENABLED -> TRANSFER_READY

>PMUSC

WaitForXfer returning in State 6 [148434ms]

DS(2,DAT_IMAGEINFO,MSG_GET)[0ms]=> SUCCESS/SUCCESS

INFO: ImageWidth:  1700, ImageLength: 2200

XRes: 200, YRes: 200

PixelType: 1  Planar: 0, Compression: 0

BitsPerPixel:  8, SamplesPerPixel: 1, BitsPerSample: [8, 0, 0, 0]

DS(2,DAT_IMAGENATIVEXFER,MSG_GET)

[4976ms]=> XFERDONE/SUCCESS

State: TRANSFER_READY -> TRANSFERRING

RetrieveExtendedImageInfo - nothing to do

PostProcessDib(010501a4)

Size=40  Planes=1

Width=1700  Height=2200  BitCount=8

Comp=0  SizeImage=3740000

XPPM=7874 (200 DPI) YPPM=7874 (200 DPI)

ClrUsed=256 ClrImp=0

CT[000] =   0,  0,  0,  0

CT[001] =   1,  1,  1,  0

CT[002] =   2,  2,  2,  0

CT[003] =   3,  3,  3,  0

CT[004] =   4,  4,  4,  0

CT[005] =   5,  5,  5,  0

CT[006] =   6,  6,  6,  0

CT[007] =   7,  7,  7,  0

...

CT[248] = 248,248,248,  0

CT[249] = 249,249,249,  0

CT[250] = 250,250,250,  0

CT[251] = 251,251,251,  0

CT[252] = 252,252,252,  0

CT[253] = 253,253,253,  0

CT[254] = 254,254,254,  0

CT[255] = 255,255,255,  0

row[1099]+847: F2 F0 EE C5 8C 45 54 CF

row[1100]+847: E9 E4 E8 CA 8A 3A 54 D6

row[1101]+847: F3 F1 E6 CA 9B 38 51 CC

PostProcessDib took [0ms]

DS(1,DAT_PENDINGXFERS,MSG_ENDXFER)[16ms]=> SUCCESS/SUCCESS

pendingXfers.Count=65535, EOJ=0

State: TRANSFERRING -> TRANSFER_READY

DibWritePage(010501a4)

DIB_Copy(010501a4)=>010501ac

Queued to Bg: 0x010501ac

Free(010501a4)

Background Writer - DIB(0x010501ac) received

WaitForNativeXfer

WaitForXfer

WaitForXfer returning in State 6 [0ms]

DS(2,DAT_IMAGEINFO,MSG_GET)[EZTiff] BmiWritePage...

[EZTiff] Compression=1

[EZTiff] PHOTOMETRIC_MINISBLACK

[EZTiff] RowsPerStrip=19

[EZTiff] BmiWritePage => 0

[EZTiff] EZTIFF_BmiWritePage => 0

DibWritePageNow => 0 [16ms]

Free(010501ac)

[16ms]=> SUCCESS/SUCCESS

INFO: ImageWidth:  1700, ImageLength: 2200

XRes: 200, YRes: 200

PixelType: 1  Planar: 0, Compression: 0

BitsPerPixel:  8, SamplesPerPixel: 1, BitsPerSample: [8, 0, 0, 0]

DS(2,DAT_IMAGENATIVEXFER,MSG_GET)

[3494ms]=> XFERDONE/SUCCESS

State: TRANSFER_READY -> TRANSFERRING

RetrieveExtendedImageInfo - nothing to do

PostProcessDib(010501ac)

Size=40  Planes=1

Width=1700  Height=2200  BitCount=8

Comp=0  SizeImage=3740000

XPPM=7874 (200 DPI) YPPM=7874 (200 DPI)

ClrUsed=256 ClrImp=0

CT[000] =   0,  0,  0,  0

CT[001] =   1,  1,  1,  0

CT[002] =   2,  2,  2,  0

CT[003] =   3,  3,  3,  0

CT[004] =   4,  4,  4,  0

CT[005] =   5,  5,  5,  0

CT[006] =   6,  6,  6,  0

CT[007] =   7,  7,  7,  0

...

CT[248] = 248,248,248,  0

CT[249] = 249,249,249,  0

CT[250] = 250,250,250,  0

CT[251] = 251,251,251,  0

CT[252] = 252,252,252,  0

CT[253] = 253,253,253,  0

CT[254] = 254,254,254,  0

CT[255] = 255,255,255,  0

row[1099]+847: FA F0 F5 EF F4 FA FC FB

row[1100]+847: FB EF F5 FB F4 F6 FB FB

row[1101]+847: FF F2 F5 FA F6 F8 F4 F5

PostProcessDib took [0ms]

DS(1,DAT_PENDINGXFERS,MSG_ENDXFER)

[421ms]=> SUCCESS/SUCCESS

pendingXfers.Count=0, EOJ=0

State: TRANSFERRING -> SOURCE_ENABLED

DibWritePage(010501ac)

DIB_Copy(010501ac)=>010501a4

Queued to Bg: 0x010501a4

Free(010501ac) Background Writer - DIB(0x010501a4) received

[EZTiff] BmiWritePage...

[EZTiff] Compression=1

[EZTiff] PHOTOMETRIC_MINISBLACK

[EZTiff] RowsPerStrip=19

[EZTiff] BmiWritePage => 0

[EZTiff] EZTIFF_BmiWritePage => 0

DibWritePageNow => 0 [0ms]

Free(010501a4)

WaitForNativeXfer

WaitForXfer

Source enabled, wait for transition.

PMUSC<

Dosadi Diagnostic Logging 3.98.02

received CLOSEDSREQ

DisableSource

Re-enabling 0x00091106

DS(1,DAT_USERINTERFACE,MSG_DISABLEDS)

ui.ShowUI  = 1

ui.hParent = 0x00091106

ui.ModalUI = FALSE

[31ms]=> SUCCESS/SUCCESS

State: SOURCE_ENABLED -> SOURCE_OPEN

SetActiveWindow(0x00091106)

>PMUSC

WaitForXfer returning in State 4 [84380ms]

Device disabled

EndMultipageFile...

FinishBgWriter

Waiting for Background writer...

Background Writer exiting

FinishBgWriter took [16ms]

[EZTiff] EndMultipageFile

[EZTiff] CloseOutputFile

[EZTiff]  => 0 (ok)

EndMultipageFile => 0 [16ms]

SuppressErrorMessages(0) => 1

PostAcquire (MultiTransfer=0)

UnloadSourceManager

CloseDSM

FlushMsgQ

CloseSource()

Mgr(1, DAT_IDENTITY, MSG_CLOSEDS)

<< Client0 Disconnected

[tess]

Hi I have the same problem.

Did you solve it??

If you solve it, Please let me know how.

I really don’t know

[Author]

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