ShowUnderlayDlg method (LEADDlgImgEffect Control)
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Builder Syntax |
int ShowUnderlayDlg (TWinControl* AOwnerCtrl); |
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Delphi Syntax |
Function ShowUnderlayDlg (AOwnerCtrl: TWinControl ): L_INT; |
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Overview |
Refer to Using Imaging Common Dialogs. |
Remarks
Displays the Underlay dialog box, and gets the options for the Underlay method.
The layout and action of the dialog depends on the flags set in the DlgFlags property. Possible options are:
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Value |
Meaning |
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DLG_UNDERLAY_AUTOPROCESS |
[$00000001] Process the image on OK. The LEADImage property must be assigned a Main Control containing a valid bitmap before calling this method. |
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DLG_UNDERLAY_SHOW_CONTEXTHELP |
[$00000002] Dialog should contain a context sensitive help icon. |
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DLG_UNDERLAY_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. |
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DLG_UNDERLAY_SHOW_TOOL_ZOOMLEVEL |
[$00000008] Show the "Zoom to fit" and "Zoom Normal" toolbar buttons. The DLG_UNDERLAY_SHOW_PREVIEW flag must be set in order to show these buttons. |
If you include DLG_UNDERLAY_AUTOPROCESS or DLG_ UNDERLAY_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:
ItemsCount property.
ItemDescription property.
ItemFileName property.
ItemBitmap property.
BitmapIndex property.
UnderlayFlags property.
SelectedBitmap property.
To include a Help button in the dialog, set the ShowHelpButton property to TRUE.
The Underlay dialog can be seen below:
See Also