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V25.1
  • dxCreateMessageDialog(string,TMsgDlgType,TMsgDlgButtons,TMsgDlgBtn,TdxMessageDialogHyperlinkClickDelegate,TdxMessageDialogShowHyperlinkHintDelegate) Method

    Creates a message dialog box form with specified settings.

    Declaration

    function dxCreateMessageDialog(const AMessage: string; ADialogType: TMsgDlgType; AButtons: TMsgDlgButtons; ADefaultButton: TMsgDlgBtn; const AHyperlinkClickProc: TdxMessageDialogHyperlinkClickDelegate = nil; const AShowHyperlinkHintProc: TdxMessageDialogShowHyperlinkHintDelegate = nil): TdxMessageDialogForm;

    Parameters

    Name Type Description
    AMessage string

    Message dialog box content. The AMessage parameter value initializes the created form’s Message property.

    The AMessage parameter supports a set of BBCode-inspired tags that allow you to format message box content. Refer to the Remarks section for the full list of supported formatting tags.

    ADialogType TMsgDlgType

    A message dialog box type that determines the predefiend caption, system icon, and sound of the message dialog box.

    AButtons TMsgDlgButtons

    A set of buttons on the message dialog box form.

    ADefaultButton TMsgDlgBtn

    A button type. Use this parameter to specify the button that has focus when the message box appears.

    AHyperlinkClickProc TdxMessageDialogHyperlinkClickDelegate

    Optional. Specifies a procedure that handles a click on a hyperlink within the displayed message. The AHyperlinkClickProc parameter value initializes the HyperlinkClickProc property of the created message dialog box form.

    You can define a click handler procedure to identify the clicked hyperlink and prevent certain links from being activated.

    Tip

    Refer to the TdxMessageDialogHyperlinkClickDelegate procedural type description for detailed information and a code example.

    AShowHyperlinkHintProc TdxMessageDialogShowHyperlinkHintDelegate

    Optional. Specifies a procedure that handles a hyperlink hint display event. The AShowHyperlinkHintProc parameter value initializes the ShowHyperlinkHintProc property of the created message dialog box form.

    You can define a hyperlink hint handler procedure to change the predefined hint message (the hyperlink target URI) depending on certain conditions in your application.

    Tip

    Refer to the TdxMessageDialogShowHyperlinkHintDelegate procedural type description for detailed information and a code example.

    Returns

    Type Description
    TdxMessageDialogForm

    The created message dialog box form.

    Remarks

    You can call the dxCreateMessageDialog function instead of the TdxMessageDialogForm constructor. The created message dialog box has the mdsMessageDlg style.

    VCL Editors Library: Message Dialog Box Example

    Supported BBCode-Inspired Markup Tags

    Text Formatting Attribute Message Text with Tags Example
    Bold '[B]DevExpress[/B]' VCL Editors Library: A Bold Font Attribute Example
    Italic '[I]DevExpress[/I]' VCL Editors Library: An Italic Font Attribute Example
    Underscore '[U]DevExpress[/U]' VCL Editors Library: An Underscore Font Attribute Example
    Strikeout '[S]DevExpress[/S]' VCL Editors Library: A Strikeout Font Attribute Example
    Subscript 'Dev[Sub]Express[/Sub]' VCL Editors Library: A Subscript Font Attribute Example
    Superscript 'Dev[Sup]Express[/Sup]' VCL Editors Library: A Superscript Font Attribute Example
    Custom Font 'Dev[U][Font=Consolas][Size=12]Express[/U][/Font][/Size]' VCL Editors Library: A Custom Font Settings Example
    Color '[Color=#E67E22]Dev[/Color][Color=Gray]Express[/Color]' VCL Editors Library: A Color Font Attribute Example
    Background Color '[BackColor=Orange]DevExpress[/BackColor]' VCL Editors Library: A Background Color Font Attribute Example
    Hyperlink '[URL=http://www.devexpress.com/]DevExpress[/URL]' VCL Editors Library: A Hyperlink Example
    No Parse '[NOPARSE][B]DevExpress[/B][/NOPARSE]' VCL Editors Library: A "No Parse" Example

    Code Example: Create a Message Box with Custom Button Captions

    The following code example calls the dxCreateMessageDialog function to create a message box with Yes, No, and Cancel buttons, customizes their captions, and moves focus to the Cancel button:

    uses dxMessageDialog;
    // ...
    var
      ADialog: TdxMessageDialogForm;
      AMessage: string;
    begin
      AMessage := 'One or more margins are set outside the printable area of the page.' + #13#10 +
        'Click the [B]Fix[/B] button to increase these margins.';
      ADialog := dxCreateMessageDialog(AMessage, mtWarning, mbYesNoCancel, mbCancel);
      try
        ADialog.FindButton(mbYes).Caption := 'Fix';
        ADialog.FindButton(mbNo).Caption := 'Restore Original';
        ADialog.FindButton(mbCancel).Caption := 'Close';
    
        ADialog.AlignButtons;  // Recalculates the button layout
        ADialog.ShowModal;     // Invokes the form as a modal dialog
      finally
        ADialog.Free;  // Releases the message box form once a user closes it
      end;
    end;
    

    Limitation

    The dxUseStandardMessageDialogs global variable has no effect on dxCreateMessageDialog function calls.

    See Also