Question

Embedded form

Asked by: ginsonic

how can I create a Form vcl and when drop it in my main form to become a part of my main form ? An embedded form I think.

I wish to work as a panel but to derive from TForm and not from TPanel.


Sorry no more points :(

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Asked On
2006-06-26 at 11:36:01ID21899612
Tags

tpanel

Topic

Delphi Programming

Participating Experts
3
Points
50
Comments
11

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Answers

 

by: geobulPosted on 2006-06-26 at 11:44:28ID: 16986712

Hi Nick,

Have you considered using frames instead? They are exactly what you're asking for.

Best regards, Geo

 

by: ginsonicPosted on 2006-06-26 at 11:51:10ID: 16986753

I wish to add an alphablending to my vcl. so I intend to embedd a form and toplay with her alphablending values.

 

by: atul_parmarPosted on 2006-06-27 at 01:32:56ID: 16990654

Change the parent of your sub form. e.g.
Windows.SetParent(MySubForm.Handle, MainForm.Handle);

 

by: RadlerPosted on 2006-06-27 at 06:00:05ID: 16992065

Without a complete knowledge of the problem I suggest use Frames. There a lot of advantages, by example the visual use of them.

T++, Radler.

 

by: ginsonicPosted on 2006-06-27 at 08:01:21ID: 16993322

I found on net that Delphi can embbed forms but nowhere how can I do this.

 

by: RadlerPosted on 2006-06-28 at 09:30:40ID: 17002538

ginsonic,

Have you seen this before with another tool?

Frames behavior is like forms at design time, and based in your information the frame use is acceptable.

Any help about this approuch?

T++, Radler.

 

by: ginsonicPosted on 2006-06-29 at 11:54:20ID: 17012379

Can I set an alphablending just for this frame?

 

by: RadlerPosted on 2006-06-30 at 07:52:06ID: 17018370

You rake a lot!


Copied from VCL, how provide a alpha blend.

procedure TCustomForm.SetLayeredAttribs;
const
  cUseAlpha: array [Boolean] of Integer = (0, LWA_ALPHA);
  cUseColorKey: array [Boolean] of Integer = (0, LWA_COLORKEY);
var
  AStyle: Integer;
begin
//  if not (csDesigning in ComponentState) and
//    (Assigned(SetLayeredWindowAttributes)) and HandleAllocated then
//  begin
    AStyle := GetWindowLong(Handle, GWL_EXSTYLE);
    if FAlphaBlend or FTransparentColor then
    begin
      if (AStyle and WS_EX_LAYERED) = 0 then
        SetWindowLong(Handle, GWL_EXSTYLE, AStyle or WS_EX_LAYERED);
      SetLayeredWindowAttributes(Handle, FTransparentColorValue, FAlphaBlendValue,
        cUseAlpha[FAlphaBlend] or cUseColorKey[FTransparentColor]);
    end
    else
    begin
      SetWindowLong(Handle, GWL_EXSTYLE, AStyle and not WS_EX_LAYERED);
      RedrawWindow(Handle, nil, 0, RDW_ERASE or RDW_INVALIDATE or RDW_FRAME or RDW_ALLCHILDREN);
    end;
  end;
//end;


Without a test and how TFrame is a TScrollingWinControl descendent this is implementable. Maybe some extra effort required in code to set this attributes.

T++, Radler.

 

by: ginsonicPosted on 2006-07-03 at 10:25:19ID: 17032375

I have try with TFrame but still can't make it alphablended. Just the frame and not the main form.

 

by: RadlerPosted on 2006-09-11 at 05:23:32ID: 17493835

Hi ginsonic,

I made a great effort to remember, but always record that I´ve posted the FIRST comment to this question. morever we follow a track to solve the alpha problem. To my surprise emerged from scratch a geobul answer whitout another comment about the alpha problem. Seams a joke but, have I made mad?

T++, Radler

 

by: ginsonicPosted on 2006-09-11 at 09:57:49ID: 17496048

First of all non of you don't answer to my question - embedded forms ??? This is my reason for a C. I just wish to close the topic but I don't get any answer.

Your alphablending don't work for frames. Sorry!

20120131-EE-VQP-002

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