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ScanningManager.Ping method

Ping can be called at any time to poll the status of ScanningManager.

Example for using Ping:

Implement a File|Exit menu or Close button on your form. Enable this menu or button only as long as Ping is L_STATE_IDLE.

Valid

All states.

See Scanning Manager States and Valid Properties/Methods

See ScanningManager Events and Valid Properties/Methods

IDL

HRESULT Ping([out, retval] L_STATE_ENUM* state);

Return Values

State

State of ScanningManager. State is of type L_STATE_ENUM.

L_STATE_IDLE

Use this for controlling your menus.

L_STATE_SCANNING

L_STATE_DIAGNOSING

L_STATE_EVENTHANDLER_SHEETATPRINTHEAD

L_STATE_EVENTHANDLER_DOCCOMPLETE

L_STATE_EVENTHANDLER_SESSIONCOMPLETE

L_STATE_EVENTHANDLER_GENERRORS

L_STATE_EVENTHANDLER_SCANERRORS

L_STATE_WAITING_FORSCANERRORRESOL

L_STATE_EVENTHANDLER_OMRBUFFER

L_STATE_SHUTTINGDOWN

L_STATE_WAITING_FOR_RESUME_SHEETATPRINTHEAD

L_STATE_WAITING_FOR_RESUME_DOCCOMPLETE

Exceptions

Scanning Services Exceptions

See also

Event Driven Scanning

 

 

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