Help file always in the foreground

[Tim Freeman]

Hi,

How do I get my compiled help file to go to the background when I click
on my application window? If I click on another application it's fine,
but with my app it just stays in front.

Declaration for help as below.

Thanks,

Tim.
Public Declare Function HtmlHelp Lib "HHCtrl.ocx" Alias "HtmlHelpA" _
(ByVal hWndCaller As Long, _
ByVal pszFile As String, _
ByVal uCommand As Long, _
dwData As Any) As Long

Public Const HH_DISPLAY_TOPIC As Long = 0
Public Const HH_HELP_CONTEXT As Long = &HF

Private Sub apphelp_Click()
HtmlHelp hwnd, "apphelp.chm", HH_HELP_CONTEXT, ByVal 100&
End Sub

[Keith R. Weimer]

"Tim Freeman" <my****@ipimus.com.au> wrote in message
news:DF******************@news-server.bigpond.net.au...

Hi,

How do I get my compiled help file to go to the background when I click on
my application window? If I click on another application it's fine, but
with my app it just stays in front.

Declaration for help as below.

Thanks,

Tim.
Public Declare Function HtmlHelp Lib "HHCtrl.ocx" Alias "HtmlHelpA" _
(ByVal hWndCaller As Long, _
ByVal pszFile As String, _
ByVal uCommand As Long, _
dwData As Any) As Long

Public Const HH_DISPLAY_TOPIC As Long = 0
Public Const HH_HELP_CONTEXT As Long = &HF

Private Sub apphelp_Click()
HtmlHelp hwnd, "apphelp.chm", HH_HELP_CONTEXT, ByVal 100&
End Sub

Don't pass hWnd to the function, just use a null pointer (0&). The help
window can't stay in front of a window it doesn't know about.

Keith R. Weimer
Way Too Happy Software

[Carsten Troelsgaard]

"Tim Freeman" <my****@ipimus.com.au> skrev i en meddelelse
news:DF******************@news-server.bigpond.net.au...

Hi,

How do I get my compiled help file to go to the background when I click on
my application window? If I click on another application it's fine, but
with my app it just stays in front.

Declaration for help as below.

Thanks,

Tim.
Public Declare Function HtmlHelp Lib "HHCtrl.ocx" Alias "HtmlHelpA" _
(ByVal hWndCaller As Long, _
ByVal pszFile As String, _
ByVal uCommand As Long, _
dwData As Any) As Long

Public Const HH_DISPLAY_TOPIC As Long = 0
Public Const HH_HELP_CONTEXT As Long = &HF

Private Sub apphelp_Click()
HtmlHelp hwnd, "apphelp.chm", HH_HELP_CONTEXT, ByVal 100&
End Sub

I cann't comment on your code, but my default helpwindows in vba behaves
this rather annoying way (as far as I can tell), so maybe it isn't your code
that's wrong.

Carsten

[Tim Freeman]

Don't pass hWnd to the function, just use a null pointer (0&). The help
window can't stay in front of a window it doesn't know about.

Keith R. Weimer
Way Too Happy Software

Hi Keith,

I'd just been looking at the HTML help api to find that "The help window
is owned by the window you specify. As an owned window, a help window
automatically stays on top of its owner and closes when the owner is
closed."
Didn't think about disowning it like that!

Many thanks,

Tim.

[Randy Birch]

In the HtmlHelp declaration, the hwndCaller member is defined as a handle to
an application window or Null. When a handle, the corresponding window owns
the html help window and receives any messages sent by htmlhelp back to the
owner. By setting this to null (0& in VB parlance), you are effectively
telling it that the desktop is the owner, thus allowing the window to fall
behind your app.

Grab the HtmlHelp class from http://www.mvps.org/htmlhelpcenter/ - it really
makes working with htmlhelp pretty easy.

--

Randy Birch
MS MVP Visual Basic
http://vbnet.mvps.org/
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"Tim Freeman" <my****@ipimus.com.au> wrote in message
news:9D******************@news-server.bigpond.net.au...
:
: > Don't pass hWnd to the function, just use a null pointer (0&). The help
: > window can't stay in front of a window it doesn't know about.
: >
: > Keith R. Weimer
: > Way Too Happy Software
: >
: >
: Hi Keith,
:
: I'd just been looking at the HTML help api to find that "The help window
: is owned by the window you specify. As an owned window, a help window
: automatically stays on top of its owner and closes when the owner is
: closed."
: Didn't think about disowning it like that!
:
: Many thanks,
:
: Tim.

[Tim Freeman]

Randy Birch wrote:

In the HtmlHelp declaration, the hwndCaller member is defined as a handle to
an application window or Null. When a handle, the corresponding window owns
the html help window and receives any messages sent by htmlhelp back to the
owner. By setting this to null (0& in VB parlance), you are effectively
telling it that the desktop is the owner, thus allowing the window to fall
behind your app.

Grab the HtmlHelp class from http://www.mvps.org/htmlhelpcenter/ - it really
makes working with htmlhelp pretty easy.

Hi Randy,

That makes it pretty clear now. Handy link as well!

Thanks,

Tim