• Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 157
  • Last Modified:

How to show a help file

Hi again.... I have a help file called MONITOR.HLP. I wrote this name in the form property HelpFile. The question is, how can I show it?

Thanks in advance
Skel
0
skel
Asked:
skel
1 Solution
 
viktornetCommented:
The usual way is this...

Go to the Form's properties and do this...

Set HelpFile to the name of the help file...

Form.HelpFile := 'MONITOR.HLP';

then you should set the HelpContext to 1 or another number that is different than 0...

If all this doesn't work just do this...

ShellExecute(0, 'open', 'MONITOR.HLP', nil, nil, SH_SHOWNORMAL);

That's all :)

-Viktor
--Ivanov
0
 
intheCommented:
hi skel,
well you can either call it off a menu item like so:
 
ShellExecute(Handle, Open,'pathtoyour\monitor.hlp' , NIL, NIL, sw_ShowNormal);

or you can use the context sensitive help, below is taken from delphi help using context help number in delphi's object inspector:

HelpContext displays the help file for an application.
type THelpContext = -MaxLongInt..MaxLongInt;
function HelpContext(Context: THelpContext): Boolean;

Description

Use HelpContext to bring up the help file for the application specified in the HelpFile property. HelpContext calls OnHelp directly.
HelpContext passes the file name contained in HelpFile and the context number passed in Context parameter. For example, if the Context value is 714, the HelpContext method displays the screen with the context help ID of 714 in the Help file.
HelpContext returns False if HelpFile is an empty string, meaning the application has no Help file assigned. In all other cases, HelpContext returns True.

This example uses a bitmap button on a form. When the user clicks the button, the screen with the context number of 714 in the DATA.HLP Help file appears.  Note that using constants for HelpContext numbers makes the code easier to read:

const

  DATANOTFOUND = 714;

procedure TForm1.BitBtn1Click(Sender: TObject);

begin
  Application.HelpFile := 'DATA.HLP';
  Application.HelpContext(DATANOTFOUND);
end;

also for more info look microsoft help workshop in delphi's help/tools directory to assigning topic-id's and designing conext help files.
hope this is of some help <--- :-)
Regards Barry
0
 
intheCommented:
hi viktor
 i new i should have refreshed before posting

¤   ¤
  ^
\___/
0
Concerto's Cloud Advisory Services

Want to avoid the missteps to gaining all the benefits of the cloud? Learn more about the different assessment options from our Cloud Advisory team.

 
viktornetCommented:
Eh, eh, eh.. :)) I was faster than you Barry :)

  ^----^
/  ¤   ¤ \
\     ^    /
  \_V_/
0
 
intheCommented:
right ive had enough im off to buy mavis beacon
lol
0
 
skelAuthor Commented:
Viktor... I tried both ways... the first shows me the error that Topic not found, but I can open the help file by executing winhelp.exe program

The second way didn't compile.... it says that ShellExecute is an undeclared identify (the same with SW_SHOWNORMAL).

Thanks
0
 
viktornetCommented:
if you use ShellExecute() you should include ShellAPI to your uses clause...

Why don't you try Application.HelpFile := filepath;
Application.HelpContext := whatever;//Different than zero,,,

The best way is to use ShellExecute()...so...good luck,,,

-Viktor
--Ivanov
0
 
BlackDeathCommented:
hi, skel.
hi vik, hi inthe.

skel, try:

Application.HelpFile := ExtractFilePath(Application.ExeName) + 'monitor.hlp';
Application.HelpJump('MonitorContents'); //with MonitorContents being the context string for your context page

Black Death.

0
 
mrpipeCommented:
Use...

Application.HelpFile := HELPFILE;
Application.HelpCommand(HELP_FINDER, 0);

it's easier...
0

Featured Post

Free Tool: IP Lookup

Get more info about an IP address or domain name, such as organization, abuse contacts and geolocation.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Tackle projects and never again get stuck behind a technical roadblock.
Join Now