ShowContourFilterDlg method (LEADDlgImgEffect Control)

C++ Builder example

Delphi 4.0 example

 

Builder Syntax

int ShowContourFilterDlg(TWinControl* AOwnerCtrl);

Delphi Syntax

Function ShowContourFilterDlg (AOwnerCtrl: TWinControl ): L_INT;

Overview

Refer to Using Imaging Common Dialogs.

Remarks

(Medical only) Displays the Contour Filter dialog box, and gets the options for the ContourFilter method.

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

Value

Meaning

DLG_CONTOURFILTER_AUTOPROCESS

[$00000001] Process the image on OK. The LEADImage property must be assigned a Main Control containing a valid bitmap before calling this method.

DLG_CONTOURFILTER_SHOW_CONTEXTHELP

[$00000002] Dialog should contain a context sensitive help icon.

DLG_CONTOURFILTER_SHOW_PREVIEW

[$00000004] Show a preview of the image in the dialog. The LEADImage property must be assigned a Main Control containing a valid bitmap before calling this method..

DLG_CONTOURFILTER_SHOW_TOOL_ZOOMLEVEL

[$00000008] Show the "Zoom to fit" and "Zoom Normal" toolbar buttons. The DLG_CONTOURFILTER_SHOW_PREVIEW flag must be set in order to show these buttons.

DLG_CONTOURFILTER_SHOW_OPTION

[$00000010] Show the Contour Option.

DLG_CONTOURFILTER_SHOW_THRESHOLD

[$00000020] Show the Threshold option.

DLG_CONTOURFILTER_SHOW_DELTADIRECTION

[$00000040] Show the Delta Direction option.

DLG_CONTOURFILTER_SHOW_MAXIMUMERROR

[$00000080] Show the Maximum Error option.

DLG_CONTOURFILTER_SHOW_APPLY

[$00000800] Show the Apply button in the dialog. The dialog will not apply any effect unless the user presses the Apply button.

If you include DLG_CONTOURFILTER_AUTOPROCESS or DLG_CONTOURFILTER_SHOW_PREVIEW in the DlgFlags property, the LEADImage property must be assigned a Main Control containing a valid bitmap before calling this method.

The properties associated with this dialog box are:

Threshold property

DeltaDirection property.

MaxError property.

Option property.

OptionFlags property.

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

The Contour Filter dialog can be seen below:

image\ContourFilter.gif

See Also

Elements:

ContourFilter method, Threshold property, DeltaDirection property, MaxError property, Option property, OptionFlags property, ShowHelpButton property, ZoomToFit Property, DlgFlags property, EnableMethodErrors property, LEADImage property

Topics:

Imaging Common Dialogs: Properties, Methods, and Events