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GVD DLL v.2.2  released  on 12.12.2023:
  * changes in  GVDadjust structure - new adjust parameter FOV_at_zoom_1 added
  * GVDdata structure allocation changes for GVD-140
  * new firmware version for Xilinx based GVDs
        - A4 for GVD140
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GVD DLL v.2.1  released  on 05.12.2022:
  * minor changes
  * new firmware version for Xilinx based GVDs
       - C4 for GVD120,  - A2 for GVD140

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GVD DLL v.2.0  released  on  28.09.2021:
  * uses new signed driver BH Driver v.147 (bhdrvr1470.sys) 
     stopped support for Windows 7 and 32-bit operating systems
  * uses new CVI RTE v.19.0.0 instead of v.15.0.1
  * support for GVD-140 added
  * testing DLL license switched off

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GVD DLL v.1.9  released on 22.09.2020 :
  * testing license for BH GVD LabView drivers
  * support for new GVD board with Xilinx chip ( fpga v. 3.1 )

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GVD DLL v.1.8  released on 15.11.2018 :
  * fixed:  hardware test (done during intitialization) does not show errors 
                     for older GVD modules with FPGA versions < B0
  * GVD_close function added to free GVD DLL hardware and software resources
                while using DLL in LabView environment 

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GVD DLL v.1.7  released on 03.04.2017 :
  * uses new CVI RTE v.15.0.1 instead of v.15.0.0
  * uses new signed driver BH Driver v.123 (bhdrvr1230.sys) to solve BH drivers installation problems 
        on computers with Windows 10 Anniversary Update and SecureBoot Enabled ( in BIOS)


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GVD DLL v.1.6  released on 22.01.2016 :
  * uses new signed driver BH Driver v.12.0 (bhdrvr1200.sys) for compatibility with Windows 10
  * uses new CVI RTE v.15.0.0 instead of v.12.1.0


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GVD DLL v.1.5  released on 07.07.2014 :
  * uses new signed BHDriver v.11.6 instead of Windriver 10.2
      no more problems with driver installation under Windows 8/8.1 


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GVD DLL v.1.4  released on 05.05.2014 :

  * DLL structures are reordered to avoid alignment problems for 64bit DLL
         ( for example in 64bit LabView)
  * max_zoom up to 1024 (depending on GVD parameters - especially frame size)
  * uses new CVI RTE v.12.0.1 instead of v.9.1.1
  * works on Windows XP and newer ( no support for Windows NT/2000)
  * rectangular frame format possible:
  *        X(pixels per line)  - 16..4096, Y(lines per frame) - 16..16384
  * square frame format max = 4096x4096
  * rectangular scan area posible using separate zoom for X and Y
  * new line type - sinus
  * min line time low limit = 0.01ms instead of 0.1ms
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GVD DLL v.1.3  released on 12.12.2012 :
  * improved multiplexing lasers and line scan ( with FPGA v. >= B4)

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GVD DLL v.1.2  released on 25.10.2012 :
  
  *fixed - special functions for use in LabView ( GVD_LV_... ) are corrected,
              because of the crashes in LabView 2012 64b version
               ( LabView parameter type  'Adapt to type' does not translate the structure in the same way in 
                  32 and 64 bit LabView versions - different alignment of the data)
  *fixed - now GVD_park_beam do not invalidate scan curve prepared for scanning 
  *fixed - register test for FPGA v.A.. shows errors

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GVD DLL 1.1  released on 27.04.2012 :

  *  gvd64.dll    - 64-bit DLL (to be used only on 64-bit Windows) is ready for use
  * when multiplexing lasers - now it is possible to define which laser is the first ( with FPGA v. >= B3)
  * tests whether DLL is registered - looks for license string in registry
  * GVD can now scan the line in steps ( same position for the whole pixel ) - new feature
        or continuously ( which was the only choice before )
  * stop scanning done in GVD_init to avoid unexpected initial scan actions
  * fixed - corrected scanning for scan type =  line 
  * fixed - DCS Box - max no of detector routing bits = 4 for SPC1x0
  * fixed - corrected calculation of GVD parameter MULTIPLEX 
                          ( = % for 1st Laser when multiplexing Pixel in MCS FLIM measurement )   

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GVD DLL  v.1.0  released on 20.07.2011 :

  * 1st version of GVD DLL uses CVI RTE v.9.1.1
  * uses Windriver 10.2
  * prepared for using on Windows x64 versions
  * naming convention for different DLL versions
      gvd32.dll    - 32-bit DLL to be used only on 32-bit Windows
      gvd32x64.dll - 32-bit DLL to be used only on 64-bit Windows
      gvd64.dll    - 64-bit DLL to be used only on 64-bit Windows ( not ready yet)
  * suport for FPGA v.B1 - Scan Trigger implemented