Failed to Launch Help

[Controls Guy]

I was trying to do something where I felt like I should temporarily check my man-card and read the directions, so I clicked on the box of interest and pressed F1, and got the above error.   I tend to do a pretty minimal DMD install so thought I might not have installed help, so I did a Repair install, which indicated that help was in fact installed, but I ran it anyway.   After the install, help opened once and now is back to displaying that error, whether invoked from within ladder or via the menu.   Any ideas?

[franji1]

Bring up a System Config dialog or an instruction editor dialog, and try F1.

[Controls Guy]

Weird.   Not only did that work, but now it works from the menu and also by clicking on a box and hitting F1 without opening the editor dialog for the box, which is what I was doing before.

[Controls Guy]

OK, it's specifically ENDC.  If I click on that and hit F1, or try to open Help from the Menu while clicked on and ENDC, I get the error.

If I'm clicked on another box, say a MATH, and either hit F1 or open Help from the menu, I get help on MATH.   I guess I never realized that opening Help from the Menu (which I don't do much) is context sensitive to cursor position.  I assumed it would just open to the beginning of the help file.

Click on an ENDC and see if it opens.

[franji1]

Duplicated it.  That instruction just isn't "hooked" to the specific ENDC Help Topic.  Easy fix.

F1 is CONTEXT help - not just launch Help.  If you are in a dialog box, F1 brings up the Help for that dialog box.  If you are on an instruction, it (should) bring up the Help for THAT instruction.

[Controls Guy]

Exactly.  I knew that F1 would give help on the cursor-location instruction, I just was not aware that opening help from the DMD menu would as well.