QLibrary: how to download and check?

[d_stranz]

You do not think I'm not complaining about the application, but only a share.

I understand. Remember, I cannot test the code, because I do not have an Atmel board. So maybe there are a few things that do not work correctly; if the DYNCALL(closeDevice)() call causes a segfault, then it should be removed or moved to a different place. I am not sure why the segfault occurs - possibly the library is already destroyed before this call takes place.

You could try to call mpController->shutdown() from inside CUSBHidDlg. Add a new method, a protected slot:

// CUSBHidDlg.h
 
protected slots:    // This section already exists, just add a new method declaration
    void accept();
 
// CUSBHidDlg.cpp:
 
void CUSBHidDlg::accept()
{
    mpController->shutdown();
    CDialog::accept();
}

// CUSBHidDlg.h

protected slots:    // This section already exists, just add a new method declaration
    void accept();

// CUSBHidDlg.cpp:

void CUSBHidDlg::accept()
{
    mpController->shutdown();
    CDialog::accept();
}

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Tell me, please, and whether such a program to move to the Tablet PC on the android with slight modifications?

No, I do not think you can use this program on the Tablet PC, because the DLL is for Windows only and I do not think it can work on the Android OS. If Atmel has a similar library for Android, then maybe it can be modified to work there. Otherwise, you will have to find some code that talks to USB HID devices on Android OS and try to use that.

[lucky_sever]

Tell me, please. Such a question. Is it possible to add a button that will ignite at the same time, all four LEDs?

[d_stranz]

Tell me, please. Such a question. Is it possible to add a button that will ignite at the same time, all four LEDs?

Yes, of course. Open the ui file in Qt Designer, add the new button, then add the slot in the .h file, implement the code for the slot in the .cpp file. In the slot, write the commands to turn on all of the LEDs. You should be able understand enough of the code that I wrote to be able to do this without help.

[lucky_sever]

Thank you! I almost figured out the code. Now modify the program. I am interested in this question

int result = DYNCALL (hidRegisterDeviceNotification) (winId ());

int result = DYNCALL (hidRegisterDeviceNotification) (winId ());

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hidRegisterDeviceNotification where you use the program? I did not find anywhere else.

---

Added after 52 minutes:

bool CUSBHidController::shutdown()
{
    if ( isConnected() )
        disconnectDevice();
 
    DYNCALL(hidUnregisterDeviceNotification( winId() ));
 
    if ( mUSBHidLib.isLoaded() )
        mUSBHidLib.unload();

bool CUSBHidController::shutdown()
{
    if ( isConnected() )
        disconnectDevice();
 
    DYNCALL(hidUnregisterDeviceNotification( winId() ));
 
    if ( mUSBHidLib.isLoaded() )
        mUSBHidLib.unload();

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When you close the program in debug mode - a segfault on the call DYNCALL (hidUnregisterDeviceNotification (winId ()));. It turns out that DYNCALL (hidRegisterDeviceNotification) (winId ()) not yet due, but just checking!

[lucky_sever]

That's it! The question is exhausted! I fully understand the code. Thank you very much! That's only one did not understand where it is used "result?

int result = DYNCALL (hidRegisterDeviceNotification) (winId ());

int result = DYNCALL (hidRegisterDeviceNotification) (winId ());

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