Properties · Methods · Events · Demos · Examples

Declaration

THistogramBox = class(TCustomControl);

Description

THistogramBox displays a histogram of the colors of an image.
The source of the color information is provided from a TIEBitmap or a TImageEnProc component.

Demos

Examples

// Setup
with HistogramBox1 do
begin
  Background     := clBtnFace;                   // Change background color to a theming color
  GrayColor      := clWindowText;                // Change line color to a theming color
  Font.Color     := clGrayText;                  // Change font and chart color to gray
  MouseInteract  := mhSelectValue;               // Allow selection of a single value
  HistogramKind  := [ hkRed, hkGreen, hkBlue ];  // Histogram to show RGB levels
  HistogramStyle := hsFilledLines;               // Show a filled line graph instead of bars
end;

// Display histogram of colors in current image
HistogramBox1.UpdateFromBitmap( ImageEnView1.IEBitmap );

Methods and Properties

Properties

Methods

Events

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