I just found multiple examples showing the usage of Q_ ENUM and Q_ ENUMS and looking into the definition of Q_ ENUM showed me that it includes Q_ ENUMS and other definitions.. I am not sure which one to write when using the enum in Q_PROPERTY, Qml/QtQuick, in signals/slots, QVariants and qDebug() output.. It seems like the Q_ ENUM is the better one as it is defined using Q_ ENUMS , but.
@Kofr said in Q_ ENUM ( enum _name) works with only enums declared inside class. srsly?. How can we achieve operating with enumerations declared outside the class? This is possible since Qt 5.8 where the Q_NAMESPACE macro was introduced. This enables the generation of a.
9/15/2017 · Enumerations registered with Q_ENUM or Q_FLAG; The documentation of Q_ENUM gives us the necessary details. This macro registers an enum type with the meta-object system. It must be placed after the enum declaration in a class that has the Q_OBJECT or the Q_GADGET macro. This tells us to do two things: Place the macro Q_ENUM(Enum) after the enum declaration.
Q_NAMESPACEs can have Q_CLASSINFO, Q_ ENUM _NS, Q_FLAG_NS, but they cannot have Q_ ENUM , Q_FLAG, Q_PROPERTY, Q_INVOKABLE, signals nor slots. Q_NAMESPACE makes an external variable, staticMetaObject, available. staticMetaObject is of type QMetaObject and provides access to the enums declared with Q_ ENUM _NS/Q_FLAG_NS. This function was introduced in …
New in Qt 5.5: Q_ENUM and the C++ tricks behind it, New in Qt 5.5: Q_ENUM and the C++ tricks behind it, QObject Class | Qt Core 5.15.1, Q_NAMESPACEs can have Q_CLASSINFO, Q_ ENUM _NS, Q_FLAG_NS, but they cannot have Q_ ENUM , Q_FLAG, Q_PROPERTY, Q_INVOKABLE, signals nor slots. Q_NAMESPACE makes an external variable, staticMetaObject, available. staticMetaObject is of type QMetaObject and provides access to the enums declared with Q_ ENUM _NS/Q_FLAG_NS. For example:, Q_ ENUM (MAV_BATTERY_CHARGE_STATE)}; class MavlinkFTP {public: // / This is the fixed length portion of the protocol data. // / This needs to be packed, because it’s typecasted from mavlink_file_transfer_protocol_t.payload, which starts // / at a 3 byte offset, causing an unaligned access to seq_number and offset: PACKED_STRUCT (typedef struct …
7/3/2018 · From: Josef Bacik <> Subject [PATCH 10/14] block: remove external dependency on wbt_flags: Date: Tue, 3 Jul 2018 11:14:59 -0400, Qt build error: unknown type name ‘ Q_ENUM ‘ … If your example does not start because of missing DLLs, please verify that all libraries from external dependencies such as OpenCV are located inside your PATH variable. If you forget to call the local_setup.bat file from your terminal, …
