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How to create a modal form that does not stop the execution of the program Turn on/off line numbers in source code. Switch to Orginial background IDE or DSP color Comment or reply to this aritlce/tip for discussion. Bookmark this article to my favorite article(s). Print this article
21-Oct-02
Category
Dialogs
Language
Delphi 2.x
Views
130
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Publisher:
DSP, Administrator
Reference URL:
DKB
			Author: Jonas Bilinkevicius

I would like to create a form in my program that is a please wait type of form. I 
need the form to have the same behaviour as a modal form, but not to stop the 
execution of the program.

Answer:

So use Show to show the dialog and disable all other forms in your application 
using the same function a modal dialog uses:

function DisableTaskWindows(ActiveWindow: HWnd): Pointer;
procedure EnableTaskWindows(WindowList: Pointer);

Both are exported by the forms unit but are not documented. You use them like this:

1   var
2     p: Pointer;
3   
4     waitform.show;
5     application.processmessages; {needed to get form to paint}
6     p := DisableTaskWindows(waitform.handle);
7   try
8     { ... do stuff here }
9   finally
10    EnableTaskWindows(p);
11    waitform.close;
12  end;


			
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