wang-bin / qdevicewatcher Goto Github PK

A function that allows to disable the qdebug output when plugging or unplugging devices. This function should be usable externally if qdvicewatcher.h is included in the external code.

Hi, I am hoping you can help. I am using Win10, with Qt 5.12.2 and when I try to compile I am getting this error. Any help would be appreciated. I have tried with both MinGW64 and 32 bit. Here is my compile errors for both 32/64.

Thanks,

Rick

MinGW64

09:12:07: Running steps for project QDeviceWatcher...
09:12:07: Starting: "C:\Qt\Qt5.12.2\5.12.2\mingw73_64\bin\qmake.exe" "C:\Users\Rick Local\Desktop\QDeviceWatcher\qdevicewatcher-master\QDeviceWatcher.pro" -spec win32-g++ "CONFIG+=debug" "CONFIG+=qml_debug"
09:12:08: The process "C:\Qt\Qt5.12.2\5.12.2\mingw73_64\bin\qmake.exe" exited normally.
09:12:08: Starting: "C:\Qt\Qt5.12.2\Tools\mingw730_64\bin\mingw32-make.exe" -f "C:/Users/Rick Local/Desktop/QDeviceWatcher/build-QDeviceWatcher-Desktop_Qt_5_12_2_MinGW_64_bit-Debug/Makefile" qmake_all
0 [main] sh 13132 sync_with_child: child 17036(0x19C) died before initialization with status code 0xC0000142
29 [main] sh 13132 sync_with_child: *** child state waiting for longjmp
/usr/bin/sh: fork: Resource temporarily unavailable
mingw32-make: *** [C:/Users/Rick Local/Desktop/QDeviceWatcher/build-QDeviceWatcher-Desktop_Qt_5_12_2_MinGW_64_bit-Debug/Makefile:37: sub-src-libQDeviceWatcher-pro-qmake_all] Error 129
09:12:08: The process "C:\Qt\Qt5.12.2\Tools\mingw730_64\bin\mingw32-make.exe" exited with code 2.
Error while building/deploying project QDeviceWatcher (kit: Desktop Qt 5.12.2 MinGW 64-bit)
When executing step "qmake"
09:12:08: Elapsed time: 00:00.

and with MinGW32

09:14:49: Running steps for project QDeviceWatcher...
09:14:49: Starting: "C:\Qt\Qt5.12.2\5.12.2\mingw73_32\bin\qmake.exe" "C:\Users\Rick Local\Desktop\QDeviceWatcher\qdevicewatcher-master\QDeviceWatcher.pro" -spec win32-g++ "CONFIG+=debug" "CONFIG+=qml_debug"
Info: creating stash file C:\Users\Rick Local\Desktop\QDeviceWatcher\build-QDeviceWatcher-Desktop_Qt_5_12_2_MinGW_32_bit-Debug.qmake.stash
09:14:49: The process "C:\Qt\Qt5.12.2\5.12.2\mingw73_32\bin\qmake.exe" exited normally.
09:14:49: Starting: "C:\Qt\Qt5.12.2\Tools\mingw730_32\bin\mingw32-make.exe" -f "C:/Users/Rick Local/Desktop/QDeviceWatcher/build-QDeviceWatcher-Desktop_Qt_5_12_2_MinGW_32_bit-Debug/Makefile" qmake_all
0 [main] sh 11132 sync_with_child: child 18004(0x1A0) died before initialization with status code 0xC0000142
16 [main] sh 11132 sync_with_child: *** child state waiting for longjmp
/usr/bin/sh: fork: Resource temporarily unavailable
mingw32-make: *** [C:/Users/Rick Local/Desktop/QDeviceWatcher/build-QDeviceWatcher-Desktop_Qt_5_12_2_MinGW_32_bit-Debug/Makefile:37: sub-src-libQDeviceWatcher-pro-qmake_all] Error 129
09:14:50: The process "C:\Qt\Qt5.12.2\Tools\mingw730_32\bin\mingw32-make.exe" exited with code 2.
Error while building/deploying project QDeviceWatcher (kit: Desktop Qt 5.12.2 MinGW 32-bit)
When executing step "qmake"
09:14:50: Elapsed time: 00:01.

#include <CoreServices/CoreServices.h>
#include <IOKit/storage/IOCDMedia.h>
#include <IOKit/storage/IODVDMedia.h>

Where can I get these files? I'm trying to compile but they are missing.
I'm copiling on windows are they needed only for mac ? if so how can I compile the project on windows avoiding the compiler to complain for that ?

because current implemention must run as a root user

DARegisterDiskAppearedCallback, DARegisterDiskDisappearedCallback

update qmake pro

I tried using the following simple code on Windows to detect when devices are inserted or removed:

QDeviceWatcher deviceWatcher;
QObject::connect(&deviceWatcher, &QDeviceWatcher::deviceAdded, [](){
    qDebug() << "Device added";
});
QObject::connect(&deviceWatcher, &QDeviceWatcher::deviceChanged, [](){
    qDebug() << "Device changed";
});
QObject::connect(&deviceWatcher, &QDeviceWatcher::deviceRemoved, [](){
    qDebug() << "Device removed";
});

I tried inserting/removing several USB devices while this program was running, but none of these signals were ever emitted. The USB devices that I tried were a USB mouse and an Android phone with a USB cable.

in Qt4, we can use installEventFilter and QAbstractEventDispatcher(i haven't let it work) to deal with system events theoretically. In Qt5 a new class is introduced, QAbstractNativeEventFilter, a better one.

Hello,

I am confused with this point that I use qt5.5.1_msvc_32bit to build qdevicewatcher, But it happens unresolved external symbol about windows function, such as:

Creating library ..\out\lib_win_\QDeviceWatcherd2.lib and object ..\out\lib_win_\QDeviceWatcherd2.exp
qdevicewatcher_win32.obj : error LNK2019: unresolved external symbol imp__DefWindowProcW@16 referenced in function "long __stdcall dw_internal_proc(struct HWND *,unsigned int,unsigned int,long)" (?dw_internal_proc@@YGJPAUHWND__@@iij@Z)
qdevicewatcher_win32.obj : error LNK2019: unresolved external symbol imp__RegisterClassW@4 referenced in function "struct HWND * *cdecl dw_create_internal_window(void const )" (?dw_create_internal_window@@YAPAUHWND@@pbx@Z)
qdevicewatcher_win32.obj : error LNK2019: unresolved external symbol imp__UnregisterClassW@8 referenced in function "void __cdecl dw_destroy_internal_window(struct HWND *)" (?dw_destroy_internal_window@@YAXPAUHWND__@@@z)
qdevicewatcher_win32.obj : error LNK2019: unresolved external symbol imp__CreateWindowExW@48 referenced in function "struct HWND * *cdecl dw_create_internal_window(void const )" (?dw_create_internal_window@@YAPAUHWND@@pbx@Z)
qdevicewatcher_win32.obj : error LNK2019: unresolved external symbol imp__DestroyWindow@4 referenced in function "void __cdecl dw_destroy_internal_window(struct HWND *)" (?dw_destroy_internal_window@@YAXPAUHWND__@@@z)
qdevicewatcher_win32.obj : error LNK2019: unresolved external symbol imp__GetWindowLongW@8 referenced in function "long __stdcall dw_internal_proc(struct HWND *,unsigned int,unsigned int,long)" (?dw_internal_proc@@YGJPAUHWND__@@iij@Z)
qdevicewatcher_win32.obj : error LNK2019: unresolved external symbol imp__SetWindowLongW@12 referenced in function "struct HWND * *cdecl dw_create_internal_window(void const )" (?dw_create_internal_window@@YAPAUHWND@@pbx@Z)
..\out\lib_win_\QDeviceWatcherd2.dll : fatal error LNK1120: 7 unresolved externals

it points to windows function, Do I need to make some setting before build this project?

Your app compiles and runs fine. When I try to integrate the lib into my app I get "Bind: Address Already in Use". I tried to set SO_REUSEADDR as suggested here:

http://hea-www.harvard.edu/~fine/Tech/addrinuse.html

This did not help. I have integrated the files

qdevicewatcher.h
qdevicewatcher_p.h
qdevicewatcher.cpp
qdevicewatcher_linux.cpp

directly, not as a lib. My app builds without errors, but I get the bind() errormessage. Is there any idea how to overcome this issue?

Thanks in advance

I just tried to build the QDevicewatcher test app under Ubuntu 14.04, and it does not compile.
It seems that you use a mac for development, could that be true? Because I think that mac specific code is not removed by an #ifdef by the preprocessor - so it gets compiled under Linux as well and then the compiler doesn't find CoreServices.h and IOCDMedia.h + IODVDMedia.h

Did you try to compile the software/lib under Linux recently?