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Drop-down menu for MV point

Viktor

Hello, there is an MV point with several states (state-1, state-2, state-3, etc.). Can someone tell me
How to make a drop-down menu to select these states?
A menu of the kind shown in the picture (taken from another SCADA, where this element is present directly on the toolbar)

Parents

  • You have to know an object model ciText.ComboBox and ->>

    _ObjectCallMethod

    Calls a specific method for an ActiveX object. (See the documentation for your ActiveX object for details on methods and properties.)

    Note: The parameter list passed to the control can only have Cicode variables or variable tags; it cannot use values returned directly from a function because an ActiveX control may modify parameters passed to it.

    For example:

    //Calculate a value and pass to ActiveX control
    _ObjectCallMethod(hControl, "DoSomething", CalcValue());

    is not allowed because the return value of a function cannot be modified. The following should be used instead:

    INT nMyValue;
    //Calculate Value
    nMyValue = CalcValue();
    //Pass Value to ActiveX control
    _ObjectCallMethod(hControl, "DoSomething", nMyValue);

    Syntax

    _ObjectCallMethod(hObject, sMethod, vParameters)

    hObject:

    The handle for the object (as returned by the ObjectByName() function).

    sMethod:

    The name of the method.

    vParameters:

    A variable length parameter list of method arguments. The variables will be passed however you enter them, and will then be coerced into appropriate automation types. Likewise, any values modified by the automation call will be written back - with appropriate coercion - into the passed Cicode variable.

    Return Value

    The return value from the method - if successful, otherwise an error code is returned.

Reply

  • You have to know an object model ciText.ComboBox and ->>

    _ObjectCallMethod

    Calls a specific method for an ActiveX object. (See the documentation for your ActiveX object for details on methods and properties.)

    Note: The parameter list passed to the control can only have Cicode variables or variable tags; it cannot use values returned directly from a function because an ActiveX control may modify parameters passed to it.

    For example:

    //Calculate a value and pass to ActiveX control
    _ObjectCallMethod(hControl, "DoSomething", CalcValue());

    is not allowed because the return value of a function cannot be modified. The following should be used instead:

    INT nMyValue;
    //Calculate Value
    nMyValue = CalcValue();
    //Pass Value to ActiveX control
    _ObjectCallMethod(hControl, "DoSomething", nMyValue);

    Syntax

    _ObjectCallMethod(hObject, sMethod, vParameters)

    hObject:

    The handle for the object (as returned by the ObjectByName() function).

    sMethod:

    The name of the method.

    vParameters:

    A variable length parameter list of method arguments. The variables will be passed however you enter them, and will then be coerced into appropriate automation types. Likewise, any values modified by the automation call will be written back - with appropriate coercion - into the passed Cicode variable.

    Return Value

    The return value from the method - if successful, otherwise an error code is returned.

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