[Gs-dgs-devel] ActiveX control useing gsdll32.dll

Mon, 12 Aug 2002 08:03:07 +0200

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I have developed this ActiveX control using GS v5.10. And it works just
fine except for one thing. On some computers zoom isn't working. I
realized zoom with changing the resolution. I don't know if this is the
right way to do it (because GSview is working OK on those computers).
Error occurs in gsdll_execute_cont()
<file:///C:\xDamijan\DamijanDTemp\Install\GSTools\gs7.00\doc\DLL.htm#exe
cute_cont#execute_cont> . Function itself doesn't report any error, but
an exception window (like with alert) is raised and image isn't
displayed.
=20
To avoid this error I tried with GS v5.50 and GS v7.04. The zoom bug is
still here, but something weird is happening: ActiveX with GSv5.10 is
working OK, even if application uses more than one control
simultaneously. But with GSv5.50 or GSv7.04 function gsdll_init()
<file:///C:\xDamijan\DamijanDTemp\Install\GSTools\gs7.00\doc\DLL.htm#ini
t#init> returns GSDLL_INIT_IN_USE which is used in win 3.1 only (just
when multiple instances of this ActiveX control is used). First
instance initializes and works ok. All next instances fail.
=20
I would be very thankful if someone could help...
=20

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<div class=3DSection1>

I have developed this ActiveX control using =
GS v5.10.
And it works just fine except for one thing. On some computers zoom =
isn&#8217;t
working. I realized zoom with changing the resolution. I don&#8217;t =
know if
this is the right way to do it (because GSview is
working OK on those computers). Error occurs in <a
href=3D"file:///C:\xDamijan\DamijanDTemp\Install\GSTools\gs7.00\doc\DLL.h=
tm#execute_cont#execute_cont"><tt>gsdll_execute_cont</tt><tt>(</tt></spa=
n><tt>)</tt></a>. Function itself =
doesn&#8217;t
report any error, but an exception window (like with alert) is raised =
and image
isn&#8217;t displayed.<o:p></o:p>

<p class=3DMsoNormal><font size=3D3 color=3Dblack face=3D"Times New =
Roman"><span
lang=3DEN-US =
style=3D'font-size:12.0pt;color:black'><o:p>&nbsp;</o:p></span></font></p=
>

To avoid this error =
I tried
with GS v5.50 and GS v7.04. The zoom bug is still here, but something =
weird is
happening: ActiveX with GSv5.10 is working OK, even if application uses =
more
than one control simultaneously. But with GSv5.50 or GSv7.04 function <a
href=3D"file:///C:\xDamijan\DamijanDTemp\Install\GSTools\gs7.00\doc\DLL.h=
tm#init#init"><tt>gsdll_init</tt><tt>(</tt></spa=
n><tt>)</tt></a> returns =
<tt>GSDLL_INIT_IN_USE</tt> which is used in =
win 3.1 only
(just when multiple instances of&nbsp;
this ActiveX control is used). First instance initializes and =
works ok.
All next instances fail.<o:p></o:p>

<p class=3DMsoNormal><font size=3D3 color=3Dblack face=3D"Times New =
Roman"><span
lang=3DEN-US =
style=3D'font-size:12.0pt;color:black'><o:p>&nbsp;</o:p></span></font></p=
>

<p class=3DMsoNormal><font size=3D3 color=3Dblack face=3D"Times New =
Roman"><span
lang=3DEN-US style=3D'font-size:12.0pt;color:black'>I would be very =
thankful if
someone could help&#8230;<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
lang=3DEN-US
style=3D'font-size:12.0pt'><o:p>&nbsp;</o:p></span></font></p>

</div>

</body>

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