Detecting image files in quick view/lister with no file ext

[SkipR]

I frequently have files that have NO EXTENSION. (Example OPERA browser cache files have no extension and some are image fles). Is it possible when I open quick view panel (CTL-Q) that TC checks for a 4 bytes sequence in the selected file and then displays it as a jpg image - how do I configure this?

I know you can code something like:
.... ([6]="J" & [7]="F" & [8]="I" & [9]="F") )

in the [ListerPlugins] section of wincmd.ini but don't know the rest of coding I need.

TC 8.x 32bit, irfanview and several other plugins installed.

Thanks in advance.

[ghisler(Author)]

This detect string is used by Total Commander to decide whether to call the plugin or not. However, it depends on the plugin whehter it tries to open the file or not.

[MVV]

E.g. Imagine plugin is able to detect images by contents so I can see Opera *.tmp files like images when they are really images.

[ND]

[ListerPlugins]
0=%COMMANDER_PATH%\Plugins\wlx\Imagine\Imagine.wlx
0_detect="MULTIMEDIA"