Javascript: TextCharCollection.getItem Method
Description
Gets a particular character from the collection specified through a certain geometrical position.
Syntax
<void> TextCharCollection.getItem(<Point> location, <boolean> getNearest, <RequestTextCharCallback> callback, [<ErrorCallback> errorCallback])Parameters
| Parameter | Description |
|---|---|
| location | Specifies the character's location. The point must be specified in pixels with an origin at the top left corner of the control. |
| getNearest | Specifies whether the nearest character is returned. If this parameter is set to true, the nearest character is returned. Otherwise, if set to false, a character is only returned, if the specified location is inside the bounding rectangle of an existing character. |
| callback | Receives the textchar at the certain geometrical position. |
| errorCallback | Optional. Is called when the operation failed with an error. |
Examples
The following example demonstrates TextCharCollection.getItem in a practical document-editing workflow. It gets a particular character from the collection specified through a certain geometrical position.
function onTxError(error) {
console.error("TX Text Control error:", error.msg);
error.handled = true;
}
function inspectItem(textChars) {
textChars.getItem(
{ x: 1440, y: 720 },
true,
function(textChar) {
if (!textChar) {
console.warn("No text char was returned.");
return;
}
console.log("get item result:", textChar);
},
onTxError
);
}