DoMenu Method

This member of Class WaveLinkMenu is supported on Windows Mobile, Windows CE, Palm, and DOS.

The DoMenu Method executes a menu file from a device's non-volatile memory and returns the selected option to your application.

Syntax

public int DoMenu(String fileName)
                    throws WaveLinkError,
                           IllegalArgumentException

Parameters

Returns

The numeric value of the option selected

Throws

WaveLinkError

IllegalArgumentException

Remarks

You may pass a file name up to eight characters in length.

The DoMenu Method returns -1 if CLR is pressed and -2 if an error is encountered

The DoMenu Method returns the numeric value of the option line selected by the user to your application. For example, if you have a menu with a total of three options and the user selects the second option in the menu, the number 2 is returned to your application.

Example

WaveLinkIO ioIface = new WaveLinkIO();

WaveLinkMenu mnuIface = new WaveLinkMenu();

string nTmp;

try {

mnuIface.ResetMenu();

mnuIface.MenuWidth(18);

mnuIface.AddOption("Option 1");

mnuIface.AddOption("Option 2");

mnuIface.AddOption("Option 3");

mnuIface.AddOption("Option 4");

mnuIface.AddTitleLine("Demonstration");

mnuIface.SetCoordinates(0, 1, 20, 6);

//The menu must be stored on the device

// before it may be used.

mnuIface.StoreMenu("MainMenu");

.

.

.

nTmp = mnuIface.DoMenu("MainMenu");

}

catch (WaveLinkError wlErr) {

//Do error handling

}

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