I am trying to build a dynamic library (.dll) in 64-bit format. The library itself is perfectly assembled (.NET Framework 4.5.2), with settings (Release) (Win32).

But since I work for the first time with VS, I don’t quite understand how to build libraries in a 64-bit format.

As I understand it, a 32-bit library is built according to the principle (it collected it just in 32-bit format)

further-> further-> further

I began to search in books (MS.Microsoft.Visual.Basic.2013.Step.by.Step, C / C ++ MS Visual C ++ 2012) and, unfortunately, I didn’t find it on the Internet, or simply failed ((

I thought that in the settings you can change the platform in the "configuration manager", but alas, win32 is the only thing that the configuration manager offers.

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when assembled in a 64-bit system.

Error LNK2019 unresolved external symbol __imp_msg_zero referenced in function nmt_master_command проект этот nmt_master.obj Error LNK2001 unresolved external symbol __imp_msg_zero проект этот obj_sync.obj Error LNK2001 unresolved external symbol __imp_msg_zero проект этот pdo_proc.obj Error LNK2001 unresolved external symbol __imp_msg_zero проект этот sdo_proc.obj Error LNK2019 unresolved external symbol __imp_CiOpen referenced in function init_controller проект этот backinit.obj Error LNK2019 unresolved external symbol __imp_CiInit referenced in function start_master проект этот backinit.obj Error LNK2019 unresolved external symbol __imp_CiClose referenced in function init_controller проект этот backinit.obj Error LNK2019 unresolved external symbol __imp_CiStop referenced in function init_controller проект этот backinit.obj Error LNK2019 unresolved external symbol __imp_CiStart referenced in function set_controller_bitrate проект этот backinit.obj Error LNK2019 unresolved external symbol __imp_CiSetCB referenced in function init_controller проект этот backinit.obj Error LNK2019 unresolved external symbol __imp_CiSetBaud referenced in function set_controller_bitrate проект этот backinit.obj Error LNK2019 unresolved external symbol __imp_CiSetWriteTout referenced in function init_controller проект этот inout.obj Error LNK2019 unresolved external symbol __imp_CiWrite referenced in function push_all_data проект этот inout.obj Error LNK2019 unresolved external symbol __imp_CiRead referenced in function read_handler проект этот shai.lib

    1 answer 1

    You cannot build a 64-bit DLL with the settings of the Release Win32 project, for this the DLL must be compiled as 64-bit. To do this, in the Configuration Manager window (shown in your screenshot), click on the Platform drop-down list in the row of your project and select New... In the New Platform list, select x64 , copy from Win32 . Select x64 as the active configuration, then Build .

    • did as you described, but alas, a lot of errors jumped out; _; - timob256
    • @ timob256, what specific errors? - freim
    • I added (updated) the question, I posted there just the "output" of the error. - timob256
    • one
      @ timob256, what do you have for CiOpen , CiSetBaud , msg_zero and others? Do you use some kind of library? It should also be recompiled for 64 bits, 32-bit libraries will not be able to be connected to a 64-bit program. - freim