Problems with new (old) components

PS.
It seems to happen with all the new components,
after installing a new one Delphi compiles dclusr50.dpk,
and registers the new component and unregisters the
previous one. (Both are still in the library path, but
only the latest one is in the palette)

In order for components to be installed in Delphi 5, they must follow one of the rules above:

- Be a PAS file that complies to the new code standards set with Delphi 5 (minor differences from D4, so most components will work)

- Be a Delphi 5 DCU, built for the same service level of the Delphi 5 you have. So far there has been only one service pack released for D5. DCUs built for D2/3/4 will not work. DCUs built for a different service pack of D5 won't work either.


BTW, what is exactly this "16-bit" message?

Alex

LCDLabel component gives following error mess:
first a box: cannot access package information for package
DCLUSR50.BPL  and then after compiling
[Fatal Error] dclusr50.dpk(33):
Read error on 'c:\borland\delphi5\lib\lcdlabel\LCD_Lab.dcu'

RButton after compiling:
[Warning] Unit 'Bpanel' implicitly imported into package 'Dclusr50'
[Warning] Unit 'Rbutton' implicitly imported into package 'Dclusr50'
[Error] RLINK32: Unsupported 16bit resource in file
"c:\borland\delphi5\Lib\rbutton\bpreg.dcr"

I have installed all components after reading the text file,
and done excatly like it says.
(using the .dcu or .pas file)
Both of them cause all the other new components to disappear!
In all the descriptions for the components they say that the
only line I have to change when installing is the 'Unit file name',
and the rest hsould be left as default, in my case the package
file name is always:
c:\borland\delphi5\Lib\dclusr50.dpk
is this right?

Here's how to fix the errors:

>Read error on 'c:\borland\delphi5\lib\lcdlabel\LCD_Lab.dcu'

That DCU was built for another version of Delphi. Unless you have LCD_Lab.PAS, there's nothing you can do.

>[Error] RLINK32: Unsupported 16bit resource in file

Open the offending file in Image Editor (it was installed when you installed Delphi) and then simply save the file. this will convert it to a 32-bit resource file.

>Both of them cause all the other new components to disappear!

That's because Delphi needs all the components in the entire package to be working ok, or the package won't be installed, thus causing all the components it contains to disappear from the IDE. Once you get the problems above solved, everything will be back to normal.

>and done excatly like it says. (using the .dcu

Make sure the DCUs are built for the exact version of Delphi you have or they will give the save error as LCD_Lab.DCU, causing the entire package installation to fail.

>c:\borland\delphi5\Lib\dclusr50.dpk

That's fine.


Alex

if I understand well your message,
the compile seems to be unable to read a DCR File which is usually a file dedicated to store Images, cursors ...

what I would do, AFTER MAKING a COPY OF THIS FILE is to try to open this DCR with d5's image editor to see if it loads everything (with D5 -> Tools -> Image editor),

and if everything looks fine, to save this file again with save as... under the same name.

Might be better after

HTH

Marc

>file dedicated to store Images,

A DCR is simply a resource file (just like any .RES file) and can store anything.

Alex

I have all the .pas files,
do you mean that if I load and compile them in Delphi 5
and then install the component,
everything should work?

No, you should install the PAS file, not the DCU. If you have the PAS files, you can forget about the DCUs.

The biggest flaw here (and I strongly blame Borland for that), is that when you are installing a component, the open file dialog box for the "Install component" dialog defaults to the DCU, so users do not see the PAS files.

In that open file dialog, you should set the file type combo box to the PAS files, not the DCUs. If that option is now shown, simply type *.PAS file the filename and the pas files will be displayed. Install them instead of the correspondent DCUs.

Alex

Resaving the .dcr file fixed one problem :)
However after installing the second new component
I got the same f. message:

The component palette has been updated as a result
of rebuilding installed package
c:\borland\delphi5\Projects\Bpl\dclusr50.bpl.
The following component(s) have been registered:TGradientFill.
The following component(s) are no longer registered:TDigitalDisplay.

>The component palette has been updated as a result of rebuilding installed package

That's a good message! Means that all components could be compiled by Delphi.

>The following component(s) have been registered:TGradientFill.

Good too!

>The following component(s) are no longer registered:TDigitalDisplay.

You forgot to add the file of that component to the package. Reinstall only that component (the PAS file) to dclusr50.dpk and everything will work.

Alex

Fantastic!
Now I could install four new components and they all worked,
but when I closed Delphi and restarted it,
they weren´t there anymore.
What am I doing wrong?

Hmmm... let's go through a checklist:

1) Dif you let Delphi save the DPK file before closing it?

2) Are the generated DPL/BPL files in the Delphi search path? (look for dclusr50.dpl and .bpl, and make sure they are in Delphi's library path).

3) Go to Components | Install packages and make sure that the package "Borland User Components" package is installed and checked.

If all that fails, let me know.

yours,

Alex

sorry the delay, my network was down.

I don´t have a dclusr50.dpl
but in folder ..\Projects\Bpl\ I have these files:

dclusr50.~bpl
dclusr50.bpl
dclusr50.dcp

This is my library path after installing two components,
which both are gone again after rebooting:

$(DELPHI)\Lib;$(DELPHI)\Bin;$(DELPHI)\Imports;
$(DELPHI)\Projects\Bpl;$(DELPHI)\lib\digitaldisplay;$(DELPHI)\lib\lcdlabel

This is the quetion I get when I close Delphi,
and I choose 'Yes'.
Save changes to project Dclusr50?

Adjusted points from 25 to 100

Yes it was.
Thanks a million Alex!!!!!
(100)
Regs
Peter