ShowGradientFilterDlg method (ILEADRasterDlgImgEfx)

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

Remarks

Displays the Gradient Filter dialog box, and gets the options for the SpatialFilter method.

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

Value	Meaning
GRADIENTFILTER_AUTOPROCESS	[0X00000001] process the image on OK. The Common Dialog Bitmap property must assign a valid bitmap before calling this method.
GRADIENTFILTER_SHOW_CONTEXTHELP	[0X00000002] dialog should contain a context sensitive help icon.
GRADIENTFILTER_SHOW_PREVIEW	[0X00000004] show a preview of the image in the dialog. The Common Dialog Bitmap property must assign a valid bitmap before calling this method.
GRADIENTFILTER_SHOW_TOOL_ZOOMLEVEL	[0X00000008] show the "Zoom to fit" and "Zoom Normal" toolbar buttons. The GRADIENTFILTER_SHOW_PREVIEW flag must be set in order to show these buttons.

If you include GRADIENTFILTER _AUTOPROCESS or GRADIENTFILTER _SHOW_PREVIEW in the UIFlags property, the Common Dialog Bitmap property must assign a valid bitmap before calling this method.

The property associated with this dialog box is:

SpatialFilterType property

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

The GradientFilter dialog can be seen below:

$image\GradientFilter.gif$