PdfQueryPageSettingsEventArgs.PrintInGrayscale Property

Gets or sets a value which indicates whether to print the document content in grayscale.

Namespace: DevExpress.Pdf

Assembly: DevExpress.Pdf.v23.2.Drawing.dll

NuGet Package: DevExpress.Pdf.Drawing

Declaration

C#

public bool PrintInGrayscale { get; set; }

VB.NET

Public Property PrintInGrayscale As Boolean

Property Value

Type	Description
Boolean	true to print a document content in grayscale; false the current printer settings are used.

Remarks

Use the PrintInGrayscale property to override print color setting made before a document page is printed.

The property is set to false by default. The true option of the PrintInGrayscale property is used if a printer can’t print a document in grayscale using the standard PageSettings.Color property set to false.

The code below shows how to specify the PrintInGrayscale property value when the PdfViewer.QueryPageSettings event is handled.

C#

using DevExpress.Pdf;
using DevExpress.XtraPdfViewer;
//...
        private void Form1_Load(object sender, EventArgs e) {
            PdfViewer pdfViewer = this.pdfViewer1;
            pdfViewer1.QueryPageSettings += pdfViewer1_QueryPageSettings;
        }

        void pdfViewer1_QueryPageSettings(object sender, PdfQueryPageSettingsEventArgs e) {
            if (e.PageNumber == 2)
                e.PrintInGrayscale = true;
        }

VB.NET

Imports DevExpress.Pdf
Imports DevExpress.XtraPdfViewer
'... 
        Private  Sub Form1_Load(ByVal sender As Object, ByVal e As EventArgs)
            Dim pdfViewer As PdfViewer =  Me.pdfViewer1 
            pdfViewer1.QueryPageSettings += pdfViewer1_QueryPageSettings
        End Sub

        Private  Sub pdfViewer1_QueryPageSettings(ByVal sender As Object, ByVal e As PdfQueryPageSettingsEventArgs)
            If e.PageNumber = 2 Then
                e.PrintInGrayscale = True
            End If
        End Sub