Displaying Modeless Forms from DLLs
To illustrate placing modeless forms in a DLL, we'll use the same calendar form as the previous section.
When displaying modeless forms from a DLL, the DLL must provide two routines. The first routine must take care of creating and displaying the form. A second routine is required to free the form. Listing 6.4 displays the source code for the illustration of a modeless form in a DLL.
Listing 6.4. A Modeless Form in a DLL
unit DLLFrm; interface uses SysUtils, WinTypes, WinProcs, Messages, Classes, Graphics, Controls, Forms, Dialogs, Grids, Calendar; type TDLLForm = class(TForm) calDllCalendar: TCalendar; end; { Declare the export function } function ShowCalendar(AHandle: THandle; ACaption: String): Longint; ... |
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