Windows and Hints in Delphi

Question

Hello again!

This morning I finally made my mind and decided to ask you for help. Problem is that in my Delphi application no hints are shown at all... I have read about THintAction problem, I have read guides/tutorials/manuals, tried to invoke Hint windows ( firing event handlers ) manually, but nothing worked. They just doesnt show. I have run out of ideas ...

I have tried to: setting parent showhints on components, forms, from event handlers, application activatehint() ...

Is there any other way to do this ( except API calls, of course )?

Answer 1

First, what version of Delphi do you use?

Second, I recommend you try creating a simple application from scratch, with just one form and say a tool-button (or any other control that can show hints), with ShowHints activated, and see if it shows. If on such a very simple app you'll get no hints, I would recommend reinstalling Delphi, maybe something in your installation is screwed up...

Answer 2

Have you tried adding Application.ShowHint to your project file?

The project file would then look something like this

begin
  Application.Initialize;
  Application.ShowHint := True;
  Application.CreateForm(TfrmMain, frmMain);
  Application.Run;
end.

Answer 3

A few tips:

• Check if you or another component/unit has set a custom hint class. If so, find that component/unit and remove it.
• Compile your application with Debug DCUs and put breakpoints at the appropriate places in Forms.pas. Then single-step through the code and see what happens.

Answer 4

I bet you're on XP and your installation is rather old.

A friend of mine had this exact problem in his machine. No VCL hints were showing up in his machine. That includes the apps he built, the Delphi IDE he used (7 afaicr) and any other Delphi built app he had on his machine. So we had concluded by blaming his WinXP instance which has been on the run for the last 2 years with a lot of garbage in it (most likely it was some app he installed sometime that was hooking messages at some point causing this weird behaviour). It might be your case as well.

ps. Another interesting point - the hints were showing up if you set Application.HintPause to a low value like 100-200. You may want to try that as well.

Answer 5

Okay - As I Recently Upgraded to 2010 version ( 14.x ), I finnly was sure that this Hint problem is Bug in the IDE.

Only solutions is: - change the HintPause property - try to reinstall IDE