Author: Jonas Bilinkevicius

Anyone know how to display a modal form in a DLL file? Whenever I try, the modal 
form shows up on the taskbar and stays on top, even when you switch to other 
windows.

Answer:
1   
2   procedure ShowDLLForm(appHandle: HWND); stdcall;
3   begin
4     if appHandle = 0 then
5       apphandle := GetActiveWindow;
6     application.handle := appHandle;
7     try
8       with TDLLForm.Create(Application) do
9       try
10        ShowModal
11      finally
12        free;
13      end
14    except
15      on E: Exception do
16        application.HandleException(E);
17    end;
18    application.handle := 0;
19  end;