ShowAutoTrimDlg method (LEADDlgImage Control)

C++ Builder example

Delphi 4.0 example

 

Builder Syntax

int ShowAutoTrimDlg(TWinControl* AOwnerCtrl);

Delphi Syntax

Function ShowAutoTrimDlg (AOwnerCtrl: TWinControl ): L_INT;

Overview

Refer to Using Imaging Common Dialogs.

Remarks

Displays the AutoTrim dialog box, and gets the options for the AutoTrim method.

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

Value

Meaning

DLG_AUTOTRIM_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_AUTOTRIM_SHOW_CONTEXTHELP

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

DLG_AUTOTRIM_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_AUTOTRIM_SHOW_APPLY

[$00000080] 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_AUTOTRIM_AUTOPROCESS or DLG_AUTOTRIM_SHOW_PREVIEW in the DlgFlags property, the Common Dialog LEADImage property must be assigned a Main Control containing a valid bitmap before calling this method.

The property associated with this dialog is:

Threshold property.

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

The Auto Trim dialog can be seen below:

image\AutoTrim.gif

See Also

Elements:

AutoTrim method, Threshold property, ShowHelpButton property, DlgFlags property, ZoomToFit Property, EnableMethodErrors property.

Topics:

Imaging Common Dialogs: Properties, Methods, and Events