ShowInvertedTextDlg method (LEADDlgImgDoc Control)

C++ Builder example

Delphi 4.0 example

 

Builder Syntax

int ShowInvertedTextDlg(Controls::TWinControl* AOwnerCtrl);

Delphi Syntax

Function ShowInvertedTextDlg (AOwnerCtrl: TWinControl): L_INT;

Overview

Refer to Using Imaging Common Dialogs.

Remarks

(Document/Medical only) Displays the Inverted Text dialog box, and gets the options for the InvertedText method.

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

Value

Meaning

DLG_INVERTEDTEXT_AUTOPROCESS

[$00000001] Process the image on OK. The Common Dialog LEADImage property must be assigned a Main Control containing a valid 1-bit bitmap before calling this method.

DLG_INVERTEDTEXT_SHOW_CONTEXTHELP

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

DLG_INVERTEDTEXT_SHOW_PREVIEW

[$00000004] Show a preview of the image in the dialog. The Common Dialog LEADImage property must be assigned a Main Control containing a valid 1-bit bitmap before calling this method.

DLG_INVERTEDTEXT_SHOW_TOOL_ZOOMLEVEL

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

If you include DLG_INVERTEDTEXT_AUTOPROCESS or DLG_INVERTEDTEXT_SHOW_PREVIEW in the DlgFlags property, the Common Dialog LEADImage property must be assigned a Main Control containing a valid 1-bit bitmap before calling this method.

The InvertedText method only works with 1-bit images. If you provide a Main Control in the LEADImage property, it must be contain a valid 1-bit bitmap.

The properties associated with this dialog box are:

ProcessFlags property.

MinInvertWidth property.

MinInvertHeight property.

MinBlackPercent property.

MaxBlackPercent property.

DocCleanBitmap property.

DocCleanRgn property.

WhiteAreaColor property.

BlackAreaColor property.

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

The Inverted Text dialog can be seen below:

image\InvertedText.gif

See Also

Elements:

InvertedText method, ProcessFlags property, MinInvertWidth property, MinInvertHeight property, MinBlackPercent property, MaxBlackPercent property, WhiteAreaColor property, BlackAreaColor property, ShowHelpButton property, DlgFlags property, ZoomToFit Property, EnableMethodErrors property.

Topics:

Imaging Common Dialogs: Properties, Methods, and Events