Legacy Documentation: Version 4.6.2
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GUILayout.MinHeight

public static GUILayoutOption MinHeight(float minHeight);

Description

Option passed to a control to specify a minimum height.


Minimum height for a window.

using UnityEngine;
using System.Collections;

public class ExampleClass : MonoBehaviour {
    private Rect windowRect = new Rect(10, 10, 100, 100);
    private bool scaling = false;
    void OnGUI() {
        windowRect = GUILayout.Window(0, windowRect, ScalingWindow, "resizeable", GUILayout.MinHeight(80), GUILayout.MaxHeight(200));
    }
    void ScalingWindow(int windowID) {
        GUILayout.Box("", GUILayout.Width(20), GUILayout.Height(20));
        if (Event.current.type == EventType.MouseUp)
            scaling = false;
        else
            if (Event.current.type == EventType.MouseDown && GUILayoutUtility.GetLastRect().Contains(Event.current.mousePosition))
                scaling = true;
            
        if (scaling)
            windowRect = new Rect(windowRect.x, windowRect.y, windowRect.width + Event.current.delta.x, windowRect.height + Event.current.delta.y);
        
    }
}