BeginChangeCheck()
Starts a new code block to check for GUI changes.
Read time 1 minuteLast updated 5 days ago
Definition
- Type: Method
- Namespace: UnityEditor
- Assembly: UnityEditor.CoreModule
public static void BeginChangeCheck()
Remarks
Use this in combination with EditorGUI.EndChangeCheck to create a code block that checks if the GUI state changed for just the controls contained in that block.
This method is different from GUI.changed, which returns true for any changes to the GUI state. BeginChangeCheck() limits the check to a specific set of controls.
Examples
using UnityEditor;public class ExampleWindow : EditorWindow{ float sliderValue = 0; string labelText = "-"; [MenuItem("Window/Example Window")] static void Init() { var example = (ExampleWindow)EditorWindow.GetWindow(typeof(ExampleWindow)); example.Show(); } void OnGUI() { EditorGUILayout.LabelField("New value", labelText); // Start a code block to check for GUI changes EditorGUI.BeginChangeCheck(); sliderValue = EditorGUILayout.Slider(sliderValue, 0, 1); // End the code block and update the label if a change occurs. // Note: This indicates user interaction with the slider but does not guarantee that a SerializedProperty has changed. // To have the updated value, call serializedObject.ApplyModifiedProperties(). if (EditorGUI.EndChangeCheck()) { labelText = sliderValue.ToString(); } }}