[Qt-interest] `DEV_BROADCAST_DEVICEINTERFACE' was not declared in this scope

Girish Ramakrishnan girish at forwardbias.in
Tue Sep 1 19:38:17 CEST 2009


http://msdn.microsoft.com/en-us/library/aa363244(VS.85).aspx suggests
that you should include dbt.h. Have you tried that? Or are you saying
that dbt.h is not a part of MinGW?

Girish

Huseyin Kozan wrote:
> Hello,
> 
> I searched the mingw list about the error in the subject but I
> couldn't find anything.
> Also I have searched in google and found this :
> http://stackoverflow.com/questions/852752/how-to-know-when-a-new-usb-storage-device-is-connected-in-qt
> 
> My original code was working with VS 2008.
> After trying with Qt Creator (with mingw), I got the same error in above post.
> 
> 
> Huseyin
> 
> 
> 
> 
> This is the function that registers the device notifications :
> -------------------------------------------------------------------------------------
> #include <windows.h>      // from C:\Qt\2009.03\mingw\include\windows.h
> #include <Dbt.h>             // from C:\Qt\2009.03\mingw\include\dbt.h
> // ...other header files
> // ...other functions
> void MainWindow::RegisterForDeviceNotifications(void)
> {
>        DEV_BROADCAST_DEVICEINTERFACE DevBroadcastDeviceInterface = {0};
>        HDEVNOTIFY DeviceNotificationHandle;
>        DevBroadcastDeviceInterface.dbcc_size =
> sizeof(DevBroadcastDeviceInterface);
>        DevBroadcastDeviceInterface.dbcc_devicetype = DBT_DEVTYP_DEVICEINTERFACE;
>        DevBroadcastDeviceInterface.dbcc_classguid = GetHidGuid();
>        DeviceNotificationHandle = RegisterDeviceNotification(winId(),
> &DevBroadcastDeviceInterface, DEVICE_NOTIFY_WINDOW_HANDLE);
> }
> 
> 
> And this is the error codes after compiling:
> ----------------------------------------------------------------
> MainWindow.cpp: In member function `void
> MainWindow::RegisterForDeviceNotifications()':
> MainWindow.cpp:2073: error: `DEV_BROADCAST_DEVICEINTERFACE' was not
> declared in this scope
> MainWindow.cpp:2073: error: expected `;' before "DevBroadcastDeviceInterface"
> MainWindow.cpp:2076: error: `DevBroadcastDeviceInterface' was not
> declared in this scope
> MainWindow.cpp:2077: error: `DBT_DEVTYP_DEVICEINTERFACE' was not
> declared in this scope
> MainWindow.cpp:2081: error: `DEVICE_NOTIFY_WINDOW_HANDLE' was not
> declared in this scope
> MainWindow.cpp:2081: error: `RegisterDeviceNotificationW' was not
> declared in this scope
> ------------------------------------------------------------------------------------------------------------------------------------------------------



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