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  4. error: undefined reference to `__imp_WSAStartup'
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error: undefined reference to `__imp_WSAStartup'

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winsockwindows10qt 6.6
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  • W wwwsharq

    @wwwsharq let me be fully clear the full compilation errror is this

    
    15:58:36: Running steps for project eccoci...
    15:58:36: Starting: "C:\Program Files\CMake\bin\cmake.exe" --build C:/Users/User/Documents/build-eccoci-Desktop_Qt_6_6_2_MinGW_64_bit-Debug --target all
    [0/1 ?/sec] Re-running CMake...
    -- Could NOT find WrapVulkanHeaders (missing: Vulkan_INCLUDE_DIR) 
    -- Configuring done (0.4s)
    CMake Error: The following variables are used in this project, but they are set to NOTFOUND.
    Please set them or make sure they are set and tested correctly in the CMake files:
    ws2_32_LIBRARY_PATH
        linked by target "Executive" in directory C:/Users/User/Documents/eccoci
    
    -- Generating done (0.1s)
    CMake Generate step failed.  Build files cannot be regenerated correctly.
    FAILED: build.ninja 
    "C:\Program Files\CMake\bin\cmake.exe" --regenerate-during-build -SC:\Users\User\Documents\eccoci -BC:\Users\User\Documents\build-eccoci-Desktop_Qt_6_6_2_MinGW_64_bit-Debug
    ninja: error: rebuilding 'build.ninja': subcommand failed
    15:58:37: The process "C:\Program Files\CMake\bin\cmake.exe" exited with code 1.
    Error while building/deploying project eccoci (kit: Desktop Qt 6.6.2 MinGW 64-bit)
    When executing step "Build"
    15:58:37: Elapsed time: 00:01.
    
    
    kshegunovK Offline
    kshegunovK Offline
    kshegunov
    Moderators
    wrote on last edited by
    #10

    This is a cmake configuration error. Either you don't have WindowsSDK installed or it doesn't provide a cmake module for what you requested, or you have not pointed to cmake to find said module.

    Read and abide by the Qt Code of Conduct

    Christian EhrlicherC 1 Reply Last reply
    2
    • kshegunovK kshegunov

      This is a cmake configuration error. Either you don't have WindowsSDK installed or it doesn't provide a cmake module for what you requested, or you have not pointed to cmake to find said module.

      Christian EhrlicherC Offline
      Christian EhrlicherC Offline
      Christian Ehrlicher
      Lifetime Qt Champion
      wrote on last edited by
      #11

      There is no need to search for this lib. Simply add it to target_link_libraries call

      Qt Online Installer direct download: https://download.qt.io/official_releases/online_installers/
      Visit the Qt Academy at https://academy.qt.io/catalog

      W 2 Replies Last reply
      3
      • Christian EhrlicherC Christian Ehrlicher

        There is no need to search for this lib. Simply add it to target_link_libraries call

        W Offline
        W Offline
        wwwsharq
        wrote on last edited by
        #12
        This post is deleted!
        1 Reply Last reply
        0
        • Christian EhrlicherC Christian Ehrlicher

          There is no need to search for this lib. Simply add it to target_link_libraries call

          W Offline
          W Offline
          wwwsharq
          wrote on last edited by
          #13

          @Christian-Ehrlicher hello do you have a tutorial or site you would reccomend to learn what you just said that isn't the cmake website? i have not understood evrything there and saying add target_link_libraries call doesn't tell me much i have added that line plenty of times without any luck, just more errors

          target_link_libraries(eccoci PRIVATE ws2_32)
          

          and the like i've tried already

          Christian EhrlicherC 1 Reply Last reply
          0
          • W wwwsharq

            @Christian-Ehrlicher hello do you have a tutorial or site you would reccomend to learn what you just said that isn't the cmake website? i have not understood evrything there and saying add target_link_libraries call doesn't tell me much i have added that line plenty of times without any luck, just more errors

            target_link_libraries(eccoci PRIVATE ws2_32)
            

            and the like i've tried already

            Christian EhrlicherC Offline
            Christian EhrlicherC Offline
            Christian Ehrlicher
            Lifetime Qt Champion
            wrote on last edited by
            #14

            @wwwsharq said in error: undefined reference to `__imp_WSAStartup':

            just more errors

            What errors?

            Qt Online Installer direct download: https://download.qt.io/official_releases/online_installers/
            Visit the Qt Academy at https://academy.qt.io/catalog

            W 1 Reply Last reply
            0
            • Christian EhrlicherC Christian Ehrlicher

              @wwwsharq said in error: undefined reference to `__imp_WSAStartup':

              just more errors

              What errors?

              W Offline
              W Offline
              wwwsharq
              wrote on last edited by wwwsharq
              #15

              @Christian-Ehrlicher
              current cmake

              cmake_minimum_required(VERSION 3.5)
              
              project(eccoci VERSION 0.1 LANGUAGES CXX)
              
              set(CMAKE_AUTOUIC ON)
              set(CMAKE_AUTOMOC ON)
              set(CMAKE_AUTORCC ON)
              
              set(CMAKE_CXX_STANDARD 17)
              set(CMAKE_CXX_STANDARD_REQUIRED ON)
              
              
              find_package(QT NAMES Qt6 Qt5 REQUIRED COMPONENTS Widgets)
              find_package(Qt${QT_VERSION_MAJOR} REQUIRED COMPONENTS Widgets)
              
              set(PROJECT_SOURCES
                     main.cpp
                     mainwindow.cpp
                     mainwindow.h
                     mainwindow.ui
                     acqparamdialog.cpp
                     advancedparamdialog.cpp
                     device.cpp
                     display.cpp
                     settingsdialog.cpp
                     utilities.cpp
              )
              
              if(${QT_VERSION_MAJOR} GREATER_EQUAL 6)
                 qt_add_executable(eccoci
                     MANUAL_FINALIZATION
                     ${PROJECT_SOURCES}
                     main.cpp
                     definitions.h
                     stn_def.h
                     stn_calibration.h
                     app_settings.h
                     device.h
                     stn_device.h
                     display.h display.cpp
                     display.ui
                     settingsdialog.h settingsdialog.cpp
                     settingsdialog.ui
                     utilities.h utilities.cpp
                     auto_fclose.h
                     stn_print.h
                     custom_events.h
                     acqparamdialog.h acqparamdialog.cpp
                     acqparamdialog.ui
                     advancedparamdialog.h advancedparamdialog.cpp
                     advancedparamdialog.ui
                     ui_mainwindow.h
                     device.cpp
                     ui_display.h
                     ui_advancedparamdialog.h
                     ui_acqparamdialog.h
              
              
                 )
              # Define target properties for Android with Qt 6 as:
              #    set_property(TARGET eccoci APPEND PROPERTY QT_ANDROID_PACKAGE_SOURCE_DIR
              #                 ${CMAKE_CURRENT_SOURCE_DIR}/android)
              # For more information, see https://doc.qt.io/qt-6/qt-add-executable.html#target-creation
              else()
                 if(ANDROID)
                     add_library(eccoci SHARED
                         ${PROJECT_SOURCES}
                     )
              # Define properties for Android with Qt 5 after find_package() calls as:
              #    set(ANDROID_PACKAGE_SOURCE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/android")
                 else()
                     add_executable(eccoci
                         ${PROJECT_SOURCES}
                     )
                 endif()
              endif()
              
              target_link_libraries(eccoci PRIVATE Qt${QT_VERSION_MAJOR}::Widgets)
              
              target_link_libraries(eccoci PUBLIC ws2_32)
              
              # Qt for iOS sets MACOSX_BUNDLE_GUI_IDENTIFIER automatically since Qt 6.1.
              # If you are developing for iOS or macOS you should consider setting an
              # explicit, fixed bundle identifier manually though.
              # find_library(ws2_32_LIBRARY_PATH ws2_32)
              add_library(ws2_32)
              add_executable(Executive ${exec_src})
              #target_link_libraries(Executive ${ws2_32_LIBRARY_PATH})
              if(${QT_VERSION} VERSION_LESS 6.1.0)
               set(BUNDLE_ID_OPTION MACOSX_BUNDLE_GUI_IDENTIFIER com.example.eccoci)
              endif()
              set_target_properties(eccoci PROPERTIES
                 ${BUNDLE_ID_OPTION}
                 MACOSX_BUNDLE_BUNDLE_VERSION ${PROJECT_VERSION}
                 MACOSX_BUNDLE_SHORT_VERSION_STRING ${PROJECT_VERSION_MAJOR}.${PROJECT_VERSION_MINOR}
                 MACOSX_BUNDLE TRUE
                 WIN32_EXECUTABLE TRUE
              )
              
              include(GNUInstallDirs)
              install(TARGETS eccoci
                 BUNDLE DESTINATION .
                 LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
                 RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
              )
              
              if(QT_VERSION_MAJOR EQUAL 6)
                 qt_finalize_executable(eccoci)
              endif()
              
              

              error i get:

              -- Could NOT find WrapVulkanHeaders (missing: Vulkan_INCLUDE_DIR) 
              -- Configuring done (0.4s)
              -- Generating done (0.0s)
              -- Build files have been written to: C:/Users/User/Documents/build-eccoci-Desktop_Qt_6_6_2_MinGW_64_bit-Debug
              [1/12 8.6/sec] Automatic MOC and UIC for target Executive
              [2/11 14.8/sec] Automatic MOC and UIC for target ws2_32
              [3/9 13.6/sec] Linking CXX executable Executive.exe
              FAILED: Executive.exe 
              C:\Windows\system32\cmd.exe /C "cd . && C:\Qt\Tools\mingw1120_64\bin\g++.exe -DQT_QML_DEBUG -g  CMakeFiles/Executive.dir/Executive_autogen/mocs_compilation.cpp.obj -o Executive.exe -Wl,--out-implib,libExecutive.dll.a -Wl,--major-image-version,0,--minor-image-version,0  -lkernel32 -luser32 -lgdi32 -lwinspool -lshell32 -lole32 -loleaut32 -luuid -lcomdlg32 -ladvapi32 && cd ."
              C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/lib/../lib/libmingw32.a(lib64_libmingw32_a-crt0_c.o):crt0_c.c:(.text.startup+0x2e): undefined reference to `WinMain'
              collect2.exe: error: ld returned 1 exit status
              [4/9 13.0/sec] Automatic MOC and UIC for target eccoci
              ninja: build stopped: subcommand failed.
              15:16:15: The process "C:\Program Files\CMake\bin\cmake.exe" exited with code 1.
              Error while building/deploying project eccoci (kit: Desktop Qt 6.6.2 MinGW 64-bit)
              When executing step "Build"
              15:16:15: Elapsed time: 00:01.
              
              Christian EhrlicherC 1 Reply Last reply
              0
              • W wwwsharq

                @Christian-Ehrlicher
                current cmake

                cmake_minimum_required(VERSION 3.5)
                
                project(eccoci VERSION 0.1 LANGUAGES CXX)
                
                set(CMAKE_AUTOUIC ON)
                set(CMAKE_AUTOMOC ON)
                set(CMAKE_AUTORCC ON)
                
                set(CMAKE_CXX_STANDARD 17)
                set(CMAKE_CXX_STANDARD_REQUIRED ON)
                
                
                find_package(QT NAMES Qt6 Qt5 REQUIRED COMPONENTS Widgets)
                find_package(Qt${QT_VERSION_MAJOR} REQUIRED COMPONENTS Widgets)
                
                set(PROJECT_SOURCES
                       main.cpp
                       mainwindow.cpp
                       mainwindow.h
                       mainwindow.ui
                       acqparamdialog.cpp
                       advancedparamdialog.cpp
                       device.cpp
                       display.cpp
                       settingsdialog.cpp
                       utilities.cpp
                )
                
                if(${QT_VERSION_MAJOR} GREATER_EQUAL 6)
                   qt_add_executable(eccoci
                       MANUAL_FINALIZATION
                       ${PROJECT_SOURCES}
                       main.cpp
                       definitions.h
                       stn_def.h
                       stn_calibration.h
                       app_settings.h
                       device.h
                       stn_device.h
                       display.h display.cpp
                       display.ui
                       settingsdialog.h settingsdialog.cpp
                       settingsdialog.ui
                       utilities.h utilities.cpp
                       auto_fclose.h
                       stn_print.h
                       custom_events.h
                       acqparamdialog.h acqparamdialog.cpp
                       acqparamdialog.ui
                       advancedparamdialog.h advancedparamdialog.cpp
                       advancedparamdialog.ui
                       ui_mainwindow.h
                       device.cpp
                       ui_display.h
                       ui_advancedparamdialog.h
                       ui_acqparamdialog.h
                
                
                   )
                # Define target properties for Android with Qt 6 as:
                #    set_property(TARGET eccoci APPEND PROPERTY QT_ANDROID_PACKAGE_SOURCE_DIR
                #                 ${CMAKE_CURRENT_SOURCE_DIR}/android)
                # For more information, see https://doc.qt.io/qt-6/qt-add-executable.html#target-creation
                else()
                   if(ANDROID)
                       add_library(eccoci SHARED
                           ${PROJECT_SOURCES}
                       )
                # Define properties for Android with Qt 5 after find_package() calls as:
                #    set(ANDROID_PACKAGE_SOURCE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/android")
                   else()
                       add_executable(eccoci
                           ${PROJECT_SOURCES}
                       )
                   endif()
                endif()
                
                target_link_libraries(eccoci PRIVATE Qt${QT_VERSION_MAJOR}::Widgets)
                
                target_link_libraries(eccoci PUBLIC ws2_32)
                
                # Qt for iOS sets MACOSX_BUNDLE_GUI_IDENTIFIER automatically since Qt 6.1.
                # If you are developing for iOS or macOS you should consider setting an
                # explicit, fixed bundle identifier manually though.
                # find_library(ws2_32_LIBRARY_PATH ws2_32)
                add_library(ws2_32)
                add_executable(Executive ${exec_src})
                #target_link_libraries(Executive ${ws2_32_LIBRARY_PATH})
                if(${QT_VERSION} VERSION_LESS 6.1.0)
                 set(BUNDLE_ID_OPTION MACOSX_BUNDLE_GUI_IDENTIFIER com.example.eccoci)
                endif()
                set_target_properties(eccoci PROPERTIES
                   ${BUNDLE_ID_OPTION}
                   MACOSX_BUNDLE_BUNDLE_VERSION ${PROJECT_VERSION}
                   MACOSX_BUNDLE_SHORT_VERSION_STRING ${PROJECT_VERSION_MAJOR}.${PROJECT_VERSION_MINOR}
                   MACOSX_BUNDLE TRUE
                   WIN32_EXECUTABLE TRUE
                )
                
                include(GNUInstallDirs)
                install(TARGETS eccoci
                   BUNDLE DESTINATION .
                   LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
                   RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
                )
                
                if(QT_VERSION_MAJOR EQUAL 6)
                   qt_finalize_executable(eccoci)
                endif()
                
                

                error i get:

                -- Could NOT find WrapVulkanHeaders (missing: Vulkan_INCLUDE_DIR) 
                -- Configuring done (0.4s)
                -- Generating done (0.0s)
                -- Build files have been written to: C:/Users/User/Documents/build-eccoci-Desktop_Qt_6_6_2_MinGW_64_bit-Debug
                [1/12 8.6/sec] Automatic MOC and UIC for target Executive
                [2/11 14.8/sec] Automatic MOC and UIC for target ws2_32
                [3/9 13.6/sec] Linking CXX executable Executive.exe
                FAILED: Executive.exe 
                C:\Windows\system32\cmd.exe /C "cd . && C:\Qt\Tools\mingw1120_64\bin\g++.exe -DQT_QML_DEBUG -g  CMakeFiles/Executive.dir/Executive_autogen/mocs_compilation.cpp.obj -o Executive.exe -Wl,--out-implib,libExecutive.dll.a -Wl,--major-image-version,0,--minor-image-version,0  -lkernel32 -luser32 -lgdi32 -lwinspool -lshell32 -lole32 -loleaut32 -luuid -lcomdlg32 -ladvapi32 && cd ."
                C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/lib/../lib/libmingw32.a(lib64_libmingw32_a-crt0_c.o):crt0_c.c:(.text.startup+0x2e): undefined reference to `WinMain'
                collect2.exe: error: ld returned 1 exit status
                [4/9 13.0/sec] Automatic MOC and UIC for target eccoci
                ninja: build stopped: subcommand failed.
                15:16:15: The process "C:\Program Files\CMake\bin\cmake.exe" exited with code 1.
                Error while building/deploying project eccoci (kit: Desktop Qt 6.6.2 MinGW 64-bit)
                When executing step "Build"
                15:16:15: Elapsed time: 00:01.
                
                Christian EhrlicherC Offline
                Christian EhrlicherC Offline
                Christian Ehrlicher
                Lifetime Qt Champion
                wrote on last edited by
                #16

                @wwwsharq said in error: undefined reference to `__imp_WSAStartup':

                target_link_libraries(eccoci PRIVATE Qt${QT_VERSION_MAJOR}::Widgets)

                add_executable(Executive ${exec_src})

                You create a library but don't link it to your executable.
                Also you link the QtWidgets library private to your library which is wrong (as you expose QtWidgets stuff in your library to it's users). So either properly link public or link your executable also to QtWidgets.

                Qt Online Installer direct download: https://download.qt.io/official_releases/online_installers/
                Visit the Qt Academy at https://academy.qt.io/catalog

                1 Reply Last reply
                1
                • S Offline
                  S Offline
                  SamiV123
                  wrote on last edited by
                  #17

                  If you're using visual studio (and cl) by far the easiest way is to

                  # pragma comment(lib, "ws2_32.lib")
                  

                  the less you need to mess with CMake or (build files in general) the better.

                  Christian EhrlicherC 1 Reply Last reply
                  0
                  • S SamiV123

                    If you're using visual studio (and cl) by far the easiest way is to

                    # pragma comment(lib, "ws2_32.lib")
                    

                    the less you need to mess with CMake or (build files in general) the better.

                    Christian EhrlicherC Offline
                    Christian EhrlicherC Offline
                    Christian Ehrlicher
                    Lifetime Qt Champion
                    wrote on last edited by
                    #18

                    @SamiV123 said in error: undefined reference to `__imp_WSAStartup':

                    the less you need to mess with CMake or (build files in general) the better.

                    Using some non-standard stuff instead standarized scripting is for sure much better.
                    If you would have read the post from above you would see that the OP is using MinGW which does not support this crap.

                    Qt Online Installer direct download: https://download.qt.io/official_releases/online_installers/
                    Visit the Qt Academy at https://academy.qt.io/catalog

                    S 1 Reply Last reply
                    0
                    • Christian EhrlicherC Christian Ehrlicher

                      @SamiV123 said in error: undefined reference to `__imp_WSAStartup':

                      the less you need to mess with CMake or (build files in general) the better.

                      Using some non-standard stuff instead standarized scripting is for sure much better.
                      If you would have read the post from above you would see that the OP is using MinGW which does not support this crap.

                      S Offline
                      S Offline
                      SamiV123
                      wrote on last edited by
                      #19

                      @Christian-Ehrlicher said in error: undefined reference to `__imp_WSAStartup':

                      @SamiV123 said in error: undefined reference to `__imp_WSAStartup':

                      the less you need to mess with CMake or (build files in general) the better.

                      Using some non-standard stuff instead standarized scripting is for sure much better.
                      If you would have read the post from above you would see that the OP is using MinGW which does not support this crap.

                      Nothing standard about "scripting" (which I believe you use to refer to CMake) . But yeah, some of us prefer to have things the easy way and some don't...

                      Christian EhrlicherC 1 Reply Last reply
                      0
                      • S SamiV123

                        @Christian-Ehrlicher said in error: undefined reference to `__imp_WSAStartup':

                        @SamiV123 said in error: undefined reference to `__imp_WSAStartup':

                        the less you need to mess with CMake or (build files in general) the better.

                        Using some non-standard stuff instead standarized scripting is for sure much better.
                        If you would have read the post from above you would see that the OP is using MinGW which does not support this crap.

                        Nothing standard about "scripting" (which I believe you use to refer to CMake) . But yeah, some of us prefer to have things the easy way and some don't...

                        Christian EhrlicherC Offline
                        Christian EhrlicherC Offline
                        Christian Ehrlicher
                        Lifetime Qt Champion
                        wrote on last edited by
                        #20

                        @SamiV123 said in error: undefined reference to `__imp_WSAStartup':

                        But yeah, some of us prefer to have things the easy way and some don't...

                        Your idea will simply not work for the OP...

                        Qt Online Installer direct download: https://download.qt.io/official_releases/online_installers/
                        Visit the Qt Academy at https://academy.qt.io/catalog

                        1 Reply Last reply
                        0
                        • W wwwsharq

                          i am not sure why this doesn't quite work in qt, i am trying to use the windows sdk
                          and for some reason i get this error

                          #include <sstream>
                          #include <filesystem>

                          #ifdef _WIN32
                          #include "winsock2.h"
                          #include <windows.h>
                          #endif

                          #include <QScrollBar>
                          #include <QSettings>
                          #include "mainwindow.h"
                          #include "ui_mainwindow.h"

                          //there's a bunch of other includes that don't matter for this i think btw

                            #include "ws2tcpip.h"
                           #include "stdio.h"
                           using namespace std;
                           using namespace stn;
                           #pragma comment(lib, "Ws2_32.lib")
                          
                          
                          
                          
                            MainWindow::MainWindow(QWidget *parent)
                             : QMainWindow(parent)
                             , ui(new Ui::MainWindow)
                             , dev(this)
                          {
                            ui->setupUi(this);
                          
                          setFixedSize(size());           // prevent resizing
                          
                          setControlsState();
                          
                          ui->pushButtonSave->setEnabled(false);
                          
                          timerId = startTimer(1000);
                          
                          // Asynchronous initialization. Continued asynchronously in MainWindow::event, then in asyncInit.
                          // QEvent must be allocated on the heap, released by receiver.
                          QCoreApplication::postEvent(
                              this,                                   // receiver
                              new QEvent(QEvent::User));}
                           MainWindow::~MainWindow()
                          {
                             delete ui;
                          
                          killTimer(timerId);}
                          const ApplicationSettings* MainWindow::getSettings() const
                          {
                          return &settings;
                          }
                          

                          // Asynchronous initialization.
                          // Constructor - event - asyncInit.
                          void MainWindow::asyncInit()
                          {
                          #ifdef _WIN32
                          // Windows: Program working with SIXTeen SDK is responsible to initialize Windows sockets.

                          WSADATA wsa_data;
                          
                          if (WSAStartup(MAKEWORD(2, 2), &wsa_data) != 0)
                          {
                              postLogString("WSAStartup failed");
                              ui->pushButtonConnect->setEnabled(false);
                          }
                          

                          #endif

                          //thank you in advance

                          Ketan__Patel__0011K Offline
                          Ketan__Patel__0011K Offline
                          Ketan__Patel__0011
                          wrote on last edited by
                          #21

                          @wwwsharq for this error there are so many resone and i personally faced many problems
                          You should try to rearrange your header files.

                          Try the following way which is i used.

                          #define WIN32_LEAN_AND_MEAN
                          #include <windows.h>
                          #include <WinSock2.h>
                          #include <WS2tcpip.h>
                          #include <NetCon.h>
                          
                          #pragma comment (lib, "Ws2_32.lib")
                          #pragma comment (lib, "Mswsock.lib")
                          #pragma comment (lib, "AdvApi32.lib")
                          
                          JonBJ 1 Reply Last reply
                          0
                          • Ketan__Patel__0011K Ketan__Patel__0011

                            @wwwsharq for this error there are so many resone and i personally faced many problems
                            You should try to rearrange your header files.

                            Try the following way which is i used.

                            #define WIN32_LEAN_AND_MEAN
                            #include <windows.h>
                            #include <WinSock2.h>
                            #include <WS2tcpip.h>
                            #include <NetCon.h>
                            
                            #pragma comment (lib, "Ws2_32.lib")
                            #pragma comment (lib, "Mswsock.lib")
                            #pragma comment (lib, "AdvApi32.lib")
                            
                            JonBJ Offline
                            JonBJ Offline
                            JonB
                            wrote on last edited by JonB
                            #22

                            @Ketan__Patel__0011
                            Have you verified these #pragma comment (lib, ... statements work from MinGW? They are not just an MSVC thing?

                            Maybe your re-ordering of the headers will help, I don't know, but I don't see how this will solve MinGW not knowing to link with Ws2_32, which seems to be the error message.

                            Same sort of thing as @SamiV123 above. Don't forget the OP actually already has

                             #pragma comment(lib, "Ws2_32.lib")
                            

                            in his original code question, and it's still not linking....

                            Christian EhrlicherC 1 Reply Last reply
                            0
                            • JonBJ JonB

                              @Ketan__Patel__0011
                              Have you verified these #pragma comment (lib, ... statements work from MinGW? They are not just an MSVC thing?

                              Maybe your re-ordering of the headers will help, I don't know, but I don't see how this will solve MinGW not knowing to link with Ws2_32, which seems to be the error message.

                              Same sort of thing as @SamiV123 above. Don't forget the OP actually already has

                               #pragma comment(lib, "Ws2_32.lib")
                              

                              in his original code question, and it's still not linking....

                              Christian EhrlicherC Offline
                              Christian EhrlicherC Offline
                              Christian Ehrlicher
                              Lifetime Qt Champion
                              wrote on last edited by
                              #23

                              @JonB said in error: undefined reference to `__imp_WSAStartup':

                              They are not just an MSVC thing

                              The pragma is proprietary MSVC crap

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                              JonBJ 1 Reply Last reply
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                              • Christian EhrlicherC Christian Ehrlicher

                                @JonB said in error: undefined reference to `__imp_WSAStartup':

                                They are not just an MSVC thing

                                The pragma is proprietary MSVC crap

                                JonBJ Offline
                                JonBJ Offline
                                JonB
                                wrote on last edited by
                                #24

                                @Christian-Ehrlicher I know. I was inviting @Ketan__Patel__0011 to consider his answer for the OP with MinGW in this light.

                                Ketan__Patel__0011K 1 Reply Last reply
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                                • S Offline
                                  S Offline
                                  SamiV123
                                  wrote on last edited by SamiV123
                                  #25

                                  Using MingW on Windows when MSVS is free (and is essentially the de-facto standard C++ tool for Windows) is just bonkers.

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                                  • JonBJ JonB

                                    @Christian-Ehrlicher I know. I was inviting @Ketan__Patel__0011 to consider his answer for the OP with MinGW in this light.

                                    Ketan__Patel__0011K Offline
                                    Ketan__Patel__0011K Offline
                                    Ketan__Patel__0011
                                    wrote on last edited by
                                    #26

                                    @JonB Well i am using this conecpt in MSVC based Application and i also tried with MinGW Application and it's working very well.
                                    But For MinGW you have to do one more thing.
                                    just add below code in your .pro file

                                    LIBS += -lWs2_32
                                    LIBS += -lMswsock
                                    LIBS += -lAdvApi32
                                    
                                    JonBJ 1 Reply Last reply
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                                    • Ketan__Patel__0011K Ketan__Patel__0011

                                      @JonB Well i am using this conecpt in MSVC based Application and i also tried with MinGW Application and it's working very well.
                                      But For MinGW you have to do one more thing.
                                      just add below code in your .pro file

                                      LIBS += -lWs2_32
                                      LIBS += -lMswsock
                                      LIBS += -lAdvApi32
                                      
                                      JonBJ Offline
                                      JonBJ Offline
                                      JonB
                                      wrote on last edited by
                                      #27

                                      @Ketan__Patel__0011
                                      So for MinGW the #pragma comment (lib, "Ws2_32.lib") has no effect, that is why you have to add the -lWs2_32 etc. explicitly to get the link to happen. Which is just what we said --- the #pragma is for MSVC only.

                                      If you read what the OP is asking you will see that are using cmake, not qmake, no .pro file. So your LIBS lines do not help them. And they are asking precisely what equivalent they have to do for cmake (which I do not know).

                                      Ketan__Patel__0011K 1 Reply Last reply
                                      1
                                      • JonBJ JonB

                                        @Ketan__Patel__0011
                                        So for MinGW the #pragma comment (lib, "Ws2_32.lib") has no effect, that is why you have to add the -lWs2_32 etc. explicitly to get the link to happen. Which is just what we said --- the #pragma is for MSVC only.

                                        If you read what the OP is asking you will see that are using cmake, not qmake, no .pro file. So your LIBS lines do not help them. And they are asking precisely what equivalent they have to do for cmake (which I do not know).

                                        Ketan__Patel__0011K Offline
                                        Ketan__Patel__0011K Offline
                                        Ketan__Patel__0011
                                        wrote on last edited by
                                        #28

                                        @JonB
                                        So For CMake You can try the below code.

                                        target_link_libraries(${CMAKE_PROJECT_NAME} Ws2_32)
                                        target_link_libraries(${CMAKE_PROJECT_NAME} Mswsock)
                                        target_link_libraries(${CMAKE_PROJECT_NAME} AdvApi32)
                                        
                                        Christian EhrlicherC 1 Reply Last reply
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                                        • Ketan__Patel__0011K Ketan__Patel__0011

                                          @JonB
                                          So For CMake You can try the below code.

                                          target_link_libraries(${CMAKE_PROJECT_NAME} Ws2_32)
                                          target_link_libraries(${CMAKE_PROJECT_NAME} Mswsock)
                                          target_link_libraries(${CMAKE_PROJECT_NAME} AdvApi32)
                                          
                                          Christian EhrlicherC Offline
                                          Christian EhrlicherC Offline
                                          Christian Ehrlicher
                                          Lifetime Qt Champion
                                          wrote on last edited by
                                          #29

                                          @Ketan__Patel__0011 What are you discussing here? The op already used this three days ago...

                                          target_link_libraries(eccoci PRIVATE ws2_32)

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