QAxScript class provides a wrapper around script code. 更多...
| 头： | #include <QAxScript> |
| qmake: | QT += axcontainer |
| 继承： | QObject |
| enum | FunctionFlags { FunctionNames, FunctionSignatures } |
| QAxScript (const QString & name , QAxScriptManager * manager ) | |
| ~QAxScript () | |
| QVariant | call (const QString & function , const QVariant & var1 = QVariant(), const QVariant & var2 = QVariant(), const QVariant & var3 = QVariant(), const QVariant & var4 = QVariant(), const QVariant & var5 = QVariant(), const QVariant & var6 = QVariant(), const QVariant & var7 = QVariant(), const QVariant & var8 = QVariant()) |
| QVariant | call (const QString & function , QList<QVariant> & arguments ) |
| QStringList | 函数 (FunctionFlags flags = FunctionNames) const |
| bool | load (const QString & code , const QString & language = QString()) |
| QString | scriptCode () const |
| QAxScriptEngine * | scriptEngine () const |
| QString | scriptName () const |
| void | entered () |
| void | error (int code , const QString & description , int sourcePosition , const QString & sourceText ) |
| void | finished () |
| void | finished (const QVariant & result ) |
| void | finished (int code , const QString & source , const QString & description , const QString & help ) |
| void | stateChanged (int state ) |
QAxScript class provides a wrapper around script code.
Every instance of the QAxScript class represents a piece of scripting code in a particular scripting language. The code is loaded into the script engine using load (). Functions declared in the code can be called using call ().
The script provides scriptEngine () provides feedback to the application through signals. The most important signal is the error () signal. Direct access to the QAxScriptEngine is provided through the scriptEngine () 函数。
警告： This class is not available with the bcc5.5 compiler.
另请参阅 QAxScriptEngine , QAxScriptManager , QAxBase ，和 ActiveQt 框架 .
This FunctionFlags enum describes formatting for function introspection.
| 常量 | 值 | 描述 |
|---|---|---|
QAxScript::FunctionNames
|
0
|
Only function names are returned. |
QAxScript::FunctionSignatures
|
1
|
Returns the functions with signatures. |
构造 QAxScript object called name and registers it with the QAxScriptManager manager . This is usually done by the QAxScriptManager class when loading a script .
A script should always have a name. A manager is necessary to allow the script code to reference objects in the application. The manager takes ownership of the object.
Destroys the object, releasing all allocated resources.
调用 function , passing the parameters var1 , var1 , var2 , var3 , var4 , var5 , var6 , var7 and var8 as arguments and returns the value returned by the function, or an invalid QVariant if the function does not return a value or when the function call failed.
见 QAxScriptManager::call () for more information about how to call script functions.
这是重载函数。
调用 function passing arguments as parameters, and returns the result. Returns when the script's execution has finished.
见 QAxScriptManager::call () for more information about how to call script functions.
[signal]
void
QAxScript::
entered
()
This signal is emitted when a script engine has started executing code.
[signal]
void
QAxScript::
error
(
int
code
, const
QString
&
description
,
int
sourcePosition
, const
QString
&
sourceText
)
This signal is emitted when an execution error occurred while running a script.
code , description , sourcePosition and sourceText contain information about the execution error.
[signal]
void
QAxScript::
finished
()
This signal is emitted when a script engine has finished executing code.
注意： 信号 finished 在此类中是重载。要使用函数指针句法连接到此信号，必须在静态铸造中指定信号类型，如此范例所示：
connect(axScript, static_cast<void(QAxScript::*)()>(&QAxScript::finished), [=](){ /* ... */ });
[signal]
void
QAxScript::
finished
(const
QVariant
&
result
)
这是重载函数。
result contains the script's result. This will be an invalid QVariant if the script has no return value.
注意： 信号 finished 在此类中是重载。要使用函数指针句法连接到此信号，必须在静态铸造中指定信号类型，如此范例所示：
connect(axScript, static_cast<void(QAxScript::*)(const QVariant &)>(&QAxScript::finished), [=](const QVariant &result){ /* ... */ });
[signal]
void
QAxScript::
finished
(
int
code
, const
QString
&
source
, const
QString
&
description
, const
QString
&
help
)
这是重载函数。
code , source , description and help contain exception information when the script terminated.
注意： 信号 finished 在此类中是重载。要使用函数指针句法连接到此信号，必须在静态铸造中指定信号类型，如此范例所示：
connect(axScript, static_cast<void(QAxScript::*)(int, const QString &, const QString &, const QString &)>(&QAxScript::finished), [=](int code, const QString &source, const QString &description, const QString &help){ /* ... */ });
Returns a list of all the functions in this script if the respective script engine supports introspection; otherwise returns an empty list. The functions are either provided with full prototypes or only as names, depending on the value of flags .
另请参阅 QAxScriptEngine::hasIntrospection ().
Loads the script source code written in language language into the script engine. Returns true if code was successfully entered into the script engine; otherwise returns false.
若
language
is empty (the default) it will be determined heuristically. If
code
contains the string
End Sub
it will be interpreted as VBScript, otherwise as JScript. Additional scripting languages can be registered using
QAxScriptManager::registerEngine
().
This function can only be called once for each QAxScript object, which is done automatically when using QAxScriptManager::load ().
Returns the script's code, or the null-string if no code has been loaded yet.
另请参阅 load ().
Returns a pointer to the script engine.
You can use the object returned to connect signals to the script functions, or to access the script engine directly.
Returns the name of the script.
[signal]
void
QAxScript::
stateChanged
(
int
state
)
This signal is emitted when a script engine changes state.
state
can be any value in the
QAxScriptEngine::State
枚举。