image.getEXIFTag()
Retrieves the specified EXIF tag in an image.
		image.getEXIFTag( tagName=string )
	
Returns: any
| Argument | Description | 
|---|---|
| 
								 
									tagName
								 
								
									string,
									
										required
									
								
							 | 
							
								edit
								 The EXIF tag name to be returned.  | 
						
Examples
edit	img = imageNew("", 105, 100, "rgb", "yellow");
	writeDump(img.GetEXIFTag('width'));
	writeDump(img.GetEXIFTag('height'));