llDialog

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/LSL

Dialog

llDialog

Summary

Function: llDialog( key avatar, string message, list buttons, integer chat_channel );

247	Function ID
1.0	Forced Delay
10.0	Energy

Shows a dialog box on the avatar screen with message and buttons.

• key	avatar	–	avatar UUID
• string	message
• list	buttons
• integer	chat_channel

When a button is pressed, the avatar chats the button text on chat_channel.
The position of the chat is where the prim was when the dialog box was created.

Button Order 9   10 11 6 7 8   3 4 5 0 1 2

Channel Constant Description DEBUG_CHANNEL 0x7FFFFFFF Chat channel reserved for script debugging and error messages, broadcasts to all nearby users. PUBLIC_CHANNEL 0x0 Chat channel that broadcasts to all nearby users. This channel is sometimes referred to as: open chat, local chat and public chat.

Caveats

• This function causes the script to sleep for 1.0 seconds.
• There is no way by script to kill a dialog box.
• There is no way for the script to detect if the user clicked the small "ignore" button (no chat is generated as a result of pressing this button).
• There is no way to distinguish the input from a dialog box and regular chat made by the same user.
  • It is important to expect that the response may not be one of the buttons.
• If the prim moves out of shout range of where the dialog was created it will not be able to hear the response.
  • This limitation effects attachments too if the wearer moves out of shout range of where the dialog box was created.

message limits

• If it exceeds 8 lines a scroll bar will appear.
• message must be less than 512 bytes and not empty. Otherwise it will shout an error on DEBUG_CHANNEL.

buttons limits

• If buttons is an empty list, it will default to as if it were ["OK"]
• An error will be shouted on DEBUG_CHANNEL if...
  • More than 12 buttons.
  • any list item is not a string.
  • any list item string length (in bytes) is zero or greater than 24.

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Examples

integer channel = 1000;
default
{
    state_entry()
    {
        llListen(channel,"", "","");
    }

    touch_start(integer total_number)
    {
        llDialog(llDetectedKey(0),"This is a test dialog.\n\nPlease choose one of the below options.",["Yes", "No", "0", "1"],channel);
    }
    
    listen(integer chan, string name, key id, string mes)
    {
        llSay(0,name + " (" + (string)llDetectedPos(0) + ") chose option " + mes);
    }
}

Useful Snippets

//Compact function to put buttons in "correct" human-readable order

list order_buttons(list buttons)
{
    return llList2List(buttons, -3, -1) + llList2List(buttons, -6, -4) 
    + llList2List(buttons, -9, -7) + llList2List(buttons, -12, -10);
}

Deep Notes

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Signature
function void llDialog( key avatar, string message, list buttons, integer chat_channel );