Background structure
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Background structure
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| acGraphics
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| acPicturePanel, acHeader, acHeaderPanel and acSplitterPanel components.
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| type
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| TacBackground = class(TPersistent)
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| published
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| property Active: Boolean default False;
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| property GradientColor1: TColor default clBlue;
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| property GradientColor2: TColor default clBlack;
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| property GradientDirection: TacGradientDirection default gdHorizontal;
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| property Kind: TacBackgroundKind default bkGradient;
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| property Picture: TPicture;
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| property PictureStyle: TacBackgroundPictureStyle default bsTile;
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| end;
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| The Background structure used to specify custom background and its behaviors for the panel.
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| If you're tired of single-tone color panels and want to show the picture as "wallpaper", or smooth gradient effect under the controls of panel — simply activate it by specifying True to Active property and choose the Kind of background (specify which background you want: picture or gradient effect).
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| If you want to show the picture (wallpaper) — set Kind property to bkPicture, specify the image in Picture property and choose the style of wallpaper using PictureStyle property.
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| If you want to show the gradient effect instead of usual background — set Kind property to bkGradient, choose the style of effect in GradientDirection property (it can be vertical, horizontal or central), then specify the colors in GradientColor1 and GradientColor2 properties.
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 Alternatively, if you want to show your very own background / effect, you can use OnPaint event. Just write the OnPaint event handler and draw on the canvas of panel before all controls located on this panel will be displayed.
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| OnPaint event.
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| acFormBackground component.
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