UE4_ Editor development: highlight the UI making method according to the assets dragged by the mouse (1)

Pictured ：
Drag the mouse over a model Asset, There will be a prompt effect in the editor where the model can be placed , Green indicates that it can be placed in UI bar , Red means you can't put .

Modelled on the UE4 The above performance , Drag the material to the specified UI Drag up to place , You can put , Prompt green , Do not place , Prompt red .
The effect is as follows ：

You can place the prompt green ：

Do not place the prompt red ：

「 Assets dragged by mouse , Highlight tips UI Production method of (1)」