Enforcing size restrictions

<cfimage action="read" source="#fileUpload.serverFile#" name="myImage">
<!--- Determine whether the file is greater than 300 pixels in width or height. --->
<cfif ImageGetHeight(myImage) gt 300 or ImageGetWidth(myImage) gt 300>
<!--- If the file exceeds the size limits, delete it from the server. --->
<cffile action="delete" file="#fileUpload.serverDirectory#/#fileUpload.serverFile#">
<cfoutput>
<!--- Display the following message. --->
<p>
The image you uploaded was too big. It must be less than 300 pixels wide and 300 pixels
high. Your image was #imageGetWidth(myImage)# pixels wide and
#imageGetHeight(myImage)# pixels high.
</p>
</cfif>