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...Create Disabled Bitmaps for TSpeedButton and TBitBtn at Run Time?
Autor: FINANCES Ltd
Homepage: www.finances-ltd.narod.ru
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Tip Rating (6):  
     


procedure AddDisableBMP(SB : array of TObject);
var 
  
BM, SBM : TBitmap;
  w, x, y, NewColor, i : integer;
  PixelColor : TColor;
begin
  
BM := TBitmap.Create;
  SBM := TBitmap.Create;
  try
    for 
i := 0 to High(SB) do 
    begin
      if 
(SB[i] is TSpeedButton) then
        
BM.Assign((SB[i] as TSpeedButton).Glyph)
      else if (SB[i] is TBitBtn) then
        
BM.Assign((SB[i] as TBitBtn).Glyph)
      else 
        
Exit;

      if not Assigned(BM) or (BM.Width <> BM.Height) then Exit;

      w := BM.Width;
      SBM.Width := w * 2;
      SBM.Height := w;
      SBM.Canvas.Draw(0, 0, BM);

      for x := 0 to w - 1 do
        for 
y := 0 to w - 1 do 
        begin
          
PixelColor := ColorToRGB(BM.Canvas.Pixels[x, y]);
          NewColor := Round((((PixelColor shr 16) + ((PixelColor shr 8) and $00FF) +
            (PixelColor and $0000FF)) div 3)) div 2 + 96;
          BM.Canvas.Pixels[x, y] := RGB(NewColor, NewColor, NewColor);
        end;


      SBM.Canvas.Draw(w, 0, BM);

      if (SB[i] is TSpeedButton) then with (SB[i] as TSpeedButton) do 
        begin
          
Glyph.Assign(SBM);
          NumGlyphs := 2;
        end
      else 
        with 
(SB[i] as TBitBtn) do 
        begin
          
Glyph.Assign(SBM);
          NumGlyphs := 2;
        end;
      BM := TBitmap.Create;
      SBM := TBitmap.Create;
    end;
  finally
    
BM.Free;
    SBM.Free;
  end;
end;

 

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