How to put a Form into a .dll file?

[halflifezy]

How to put a Form into a .dll file?
I new a form into a .dll project.
when compile it show that "Unit1.pas(8,22) Fatal: Can't find unit FileUtil used by Unit1"
how to solve?
thank you.

[Leledumbo]

Add LCL to your project dependencies. I didn't really remember the last state whether having forms in dll already works or not yet, please try yourself.

[halflifezy]

How to add LCL?

[Leledumbo]

Project->Project Inspector->New Requirement->Choose LCL from the dropdown.

[halflifezy]

still not solve.
it show error:   project1.lpr(12,1) Error: Undefined symbol: WSRegisterCustomImageList


errors like this more than 50.

[Martin_fr]

Code: [Select]

uses Interfaces;
Interfaces must be in uses section.  (put it in your main pas file, the one that starts with "library" or "program")

Please also read http://bugs.freepascal.org/view.php?id=7182

[halflifezy]

errors is below

[Leledumbo]

Exactly like Martin said, you must have Interfaces in the uses section of the library.

[halflifezy]

thank you very much.
after add interfaces compile pass.
but run .exe file when call function
it paused immediately.
function as below:

 procedure showform();
 begin
 form2:=TForm1.Create(nil);
 form2.Show;
 end;