ShowHistogramDlg method (ILEADRasterDlgImg)

Syntax	short ShowHistogramDlg (long hWnd);
Overview	Refer to Using Imaging Common Dialogs

Remarks

Displaysp the Histogram dialog box.

The layout and action of the dialog depends on the flags set in the UIFlags property. Possible options are:

Value	Meaning
HISTOGRAM_SHOW_CONTEXTHELP	[0x00000001] dialog should contain a context sensitive help icon.
HISTOGRAM_SHOW_VIEWSTYLE	[0x00000002] dialog should contain the view styles option.
HISTOGRAM_USERPENCOLORS	[0x00000004] the MasterPenColor, RedChannelPenColor, GreenChannelPenColor, and BlueChannelPenColor properties are valid

Use this dialog to display histogram charts for a bitmap. Charts can be displayed for either the main, red, green or blue channels.

This dialog can be used in two different ways:

1.	You may pass the bitmap, and let the dialog do the processing to calculate the histogram(s).
2.	You may pass the histogram table(s), which can be acquired using the GetHistogram method.

The properties associated with this dialog are:

To include a Help button in the dialog, set the ShowHelpButton property to VARIANT_TRUE.

The Histogram dialog can be seen below:

$image\Histogram.gif$