ParentWindow in a DLL

I'm trying to assign a ParentWindow, to a control created in a dll. The control is an editor, I need to process a text file, but this control requires a ParentWindow.

How can I solve this problem, if开发者_开发百科 I create this control in a dll?

I'm using Delphi 5.

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also create the TForm (maybe not Visible) inside the dll then the control and add it to the form

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This is a common question, and the correct answer is "Don't do that".

The first question I have is "why do you feel the need to create a control in a DLL?" Why not just create it in code or include the control itself in your EXE?

Second, if you want to add a control to a separate binary, but it in a Package. Packages are designed specifically to make exporting controls simple and easy.

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You need to get the parent window from somewhere! Typically the host application that loads and calls the DLL would supply a window handle. It looks like your DLL provides a custom control for an application, so of course the application needs to supply a parent window handle.

Also, you typically need a window handle to the entire application as well, which you set as Application.Handle before you do anything else in your DLL.

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ok, thaks for your answers, i already solved (a few minutes before first answer).

first, i need explain why i don't embed, and that is because costumer ask me that way.

the solution is send my form handle to my dll as an argument, after testing that way, i got no errors...

only modificate the prototype of my procedure, to recieve a HWND as an argument, to ParentWindow prop of my control (created in memory). that's all.