James
Tue Dec 16 16:15:37 CST 2003
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Ugh. OK. That's what I was afraid of.
Anyone have any ideas how to make the ShowHelp function work right?
James Hancock
"Tim Wilson [MVP]" <Tim_Wilson@[DieSpamDie]Rogers.com> wrote in =
message news:eDz%23ufBxDHA.1396@TK2MSFTNGP10.phx.gbl...
I haven't really played around too much with the Help class, but the =
way that I've been showing a help file (in chm format) is to just run it =
in a separate process using the Process class. You can even take care of =
finding and showing the help process if the user already has the help =
file open. Code below:
[DllImport("User32.dll", EntryPoint=3D"SetForegroundWindow")]
private static extern bool SetForegroundWindow(IntPtr hWnd);
[DllImport("User32.dll")]
private static extern bool ShowWindow(IntPtr hWnd, int nCmdShow);
private const int SW_RESTORE =3D 9;
=
-------------------------------------------------------------------------=
-----------
// private member to the main form.
private Process help;
// place this code in a method to handle showing the help.
if (help =3D=3D null)
{
help =3D new Process();
}
else
{
if (!help.HasExited)
{
ShowWindow(help.MainWindowHandle, SW_RESTORE);
SetForegroundWindow(help.MainWindowHandle);
return;
}
}
string helpFile =3D @"C:\Program Files\My App\Help\MyHelp.chm";
try
{
ProcessStartInfo processstartinfo =3D new =
ProcessStartInfo(helpFile);
help.StartInfo =3D processstartinfo;
help.Start();
}
catch (Exception ex)
{
help.Dispose();
help =3D null;
MessageBox.Show("An error was encountered while opening the help =
file \"" + helpFile + "\".\nAdditional Info: " + ex.Message, "Help =
Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
HTH
--=20
Tim Wilson
.Net Compact Framework MVP
"James Hancock" <jamie@darwinconsulting.com> wrote in message =
news:u2cBPXBxDHA.3140@TK2MSFTNGP11.phx.gbl...
> Why is it that ShowHelp causes the Help file to show up as some sort =
of
> child to the main application? (I've tried this with MS help files =
and it
> does the same, it isn't my help file per-say) You can't click on =
the
> application without bring the help file to the front, you can't =
alt+Tab
> between the help file and the application etc.
>=20
> This is highly not a good thing. It should be a separate application =
for all
> intents and purposes.
>=20
> Anyone have any ideas?
>=20
> Thanks,
> James Hancock
>=20
>
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<BODY bgColor=3D#ffffff background=3D"">
<DIV><FONT face=3DArial size=3D2>Ugh. OK. That's what I was afraid =
of.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>Anyone have any ideas how to make the =
ShowHelp=20
function work right?</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>James Hancock</FONT></DIV>
<BLOCKQUOTE dir=3Dltr=20
style=3D"PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; =
BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV>"Tim Wilson [MVP]" <<A=20
=
href=3D"mailto:Tim_Wilson@[DieSpamDie]Rogers.com">Tim_Wilson@[DieSpamDie]=
Rogers.com</A>>=20
wrote in message <A=20
=
href=3D"news:eDz%23ufBxDHA.1396@TK2MSFTNGP10.phx.gbl">news:eDz%23ufBxDHA.=
1396@TK2MSFTNGP10.phx.gbl</A>...</DIV>
<DIV><FONT face=3DArial size=3D2>I haven't really played around too =
much with the=20
Help class, but the way that I've been showing a help file (in chm =
format) is=20
to just run it in a separate process using the Process class. You can =
even=20
take care of finding and showing the help process if the user already =
has the=20
help file open. Code below:<BR><BR>[DllImport("User32.dll",=20
EntryPoint=3D"SetForegroundWindow")]<BR>private static extern bool=20
SetForegroundWindow(IntPtr hWnd);</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT><BR><FONT face=3DArial=20
size=3D2>[DllImport("User32.dll")]<BR>private static extern bool=20
ShowWindow(IntPtr hWnd, int nCmdShow);</FONT></DIV><FONT face=3DArial=20
size=3D2></FONT><FONT face=3DArial size=3D2></FONT>
<DIV><BR><FONT face=3DArial size=3D2>private const int SW_RESTORE =3D=20
9;<BR></FONT></DIV>
<DIV><FONT face=3DArial=20
=
size=3D2>----------------------------------------------------------------=
--------------------</FONT><FONT=20
face=3DArial size=3D2></DIV>
<DIV> </DIV>
<DIV>// private member to the main form.<BR>private Process =
help;<BR></DIV>
<DIV>// place this code in a method to handle showing the help.<BR>if =
(help =3D=3D=20
null)<BR>{<BR> help =3D new =
Process();<BR>}<BR>else<BR>{<BR> if=20
(!help.HasExited)<BR> {<BR> =20
ShowWindow(help.MainWindowHandle, SW_RESTORE);<BR> =20
SetForegroundWindow(help.MainWindowHandle);<BR> =20
return;<BR> }<BR>}</DIV>
<DIV>string helpFile =3D @"C:\Program Files\My =
App\Help\MyHelp.chm";</DIV>
<DIV>try</DIV>
<DIV>{<BR> ProcessStartInfo processstartinfo =3D new=20
ProcessStartInfo(helpFile);<BR> help.StartInfo =3D=20
processstartinfo;<BR> help.Start();<BR>}<BR>catch (Exception=20
ex)<BR>{<BR> help.Dispose();<BR> help =3D null;<BR> =20
MessageBox.Show("An error was encountered while opening the help file =
\"" +=20
helpFile + "\".\nAdditional Info: " + ex.Message, "Help Error",=20
MessageBoxButtons.OK, MessageBoxIcon.Error);<BR>}<BR></DIV>
<DIV>HTH<BR>-- <BR>Tim Wilson<BR>.Net Compact Framework MVP</DIV>
<DIV><BR>"James Hancock" <jamie@darwinconsulting.com> wrote in =
message=20
news:u2cBPXBxDHA.3140@TK2MSFTNGP11.phx.gbl...<BR>> Why is it that =
ShowHelp=20
causes the Help file to show up as some sort of<BR>> child to the =
main=20
application? (I've tried this with MS help files and it<BR>> does =
the same,=20
it isn't my help file per-say) You can't click on the<BR>>=20
application without bring the help file to the front, you can't=20
alt+Tab<BR>> between the help file and the application etc.<BR>> =
<BR>> This is highly not a good thing. It should be a separate =
application=20
for all<BR>> intents and purposes.<BR>> <BR>> Anyone have any =
ideas?<BR>> <BR>> Thanks,<BR>> James Hancock<BR>> <BR>> =
</FONT></DIV></BLOCKQUOTE></BODY></HTML>
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