封装异步方法调用的结果。 更多...
头: | #include <QRemoteObjectPendingCall> |
CMake: |
find_package(Qt6 REQUIRED COMPONENTS RemoteObjects)
target_link_libraries(mytarget PRIVATE Qt6::RemoteObjects) |
qmake: | QT += remoteobjects |
继承者: |
QRemoteObjectPendingCallWatcher and QRemoteObjectPendingReply |
enum | Error { NoError, InvalidMessage } |
QRemoteObjectPendingCall::Error | error () const |
bool | isFinished () const |
QVariant | returnValue () const |
bool | waitForFinished (int timeout = 30000) |
This enum type specifies the possible error values for a remote call:
常量 | 值 | 描述 |
---|---|---|
QRemoteObjectPendingCall::NoError
|
0
|
没有出现错误。 |
QRemoteObjectPendingCall::InvalidMessage
|
1
|
The default error state prior to the remote call finishing. |
Returns the error, if any, from the remote call.
Returns true if the remote call has finished, false otherwise.
A finished call will include a returnValue or error .
Returns the return value of the remote call.
returnValue will only be valid when the remote call has finished and there are no error s.
阻塞最多 timeout milliseconds, until the remote call has finished.
返回
true
当成功时,
false
否则。