Prevent GUIContent image from shrinking

I find that when I use for example GUI.Label() to render a line of text with an image/ icon to the left, that the image will shrink down if the whole element will not fit in the provided space.

Is there a way to prevent this and simply have the text clipped to the right?

[edit] Seems like it was not clear. This is related to legacy UI and more specific, Unity Editor scripting.

Just in case someone else has this problem. Use EditorGUIUtility.SetIconSize()