if(pictureBox4.Image.ToString() == 
    ePRO_Decision_Tool.Properties.Resources.mod_onalertq.ToString())...
How to read name of image file loaded in pictureBox (or from resources)?
The image loaded in PictureBox is just an array of bytes, 
so to find out what is the filename you must fill the Tag property of PictureBox when any image loaded in it.
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