Please note that you need to create or load the PDF document properly to get the valid value, otherwise the method does nothing. At the same, the specified value only relates to the currently selected page.
'DeclarationPublic Function GetPageUserUnit() As Single
public float GetPageUserUnit()
public function GetPageUserUnit(): Single; public function GetPageUserUnit() : float;public: float GetPageUserUnit();
public: float GetPageUserUnit();
The GetStat method can be subsequently used to determine if this method has been successful.
Just to inform you, that the default value is 1, which means the user unit is 1/72 inch. Be aware, that the minimum allowed value is 1, the maximum allowed value is not restricted by the toolkit. For further assistance, please refer to the PDF Reference, Section "Page Objects".
Dim caption As String = "Example: GetPageUserUnit" Dim gdpicturePDF As GdPicturePDF = New GdPicturePDF() If gdpicturePDF.LoadFromFile("test.pdf", False) = GdPictureStatus.OK Then Dim message As String = "" gdpicturePDF.SetMeasurementUnit(PdfMeasurementUnit.PdfMeasurementUnitPoint) 'Be sure you have selected the proper page. gdpicturePDF.SelectPage(1) Dim userUnits As Single = gdpicturePDF.GetPageUserUnit() If gdpicturePDF.GetStat() = GdPictureStatus.OK Then message += "Page User Units: " + userUnits.ToString() Dim pageHeight As Single = gdpicturePDF.GetPageHeight() If gdpicturePDF.GetStat() = GdPictureStatus.OK Then Dim pageWidth As Single = gdpicturePDF.GetPageWidth() If gdpicturePDF.GetStat() = GdPictureStatus.OK Then Dim currentPageHeight As Single = pageHeight * userUnits * 1 / 72 Dim currentPageWidth As Single = pageWidth * userUnits * 1 / 72 message += vbCrLf + "Current page dimensions in inches:" message += vbCrLf + "page height = " + currentPageHeight + vbCrLf + "page width = " + currentPageWidth Else message += vbCrLf + "The GetPageWidth() method has failed with the status: " + gdpicturePDF.GetStat().ToString() End If Else message += vbCrLf + "The GetPageHeight() method has failed with the status: " + gdpicturePDF.GetStat().ToString() End If Else message += "The GetPageUserUnit() method has failed with the status: " + gdpicturePDF.GetStat().ToString() End If MessageBox.Show(message, caption) Else MessageBox.Show("The file can't be loaded.", caption) End If gdpicturePDF.Dispose()
string caption = "Example: GetPageUserUnit"; GdPicturePDF gdpicturePDF = new GdPicturePDF(); if (gdpicturePDF.LoadFromFile("test.pdf", false) == GdPictureStatus.OK) { string message = ""; gdpicturePDF.SetMeasurementUnit(PdfMeasurementUnit.PdfMeasurementUnitPoint); //Be sure you have selected the proper page. gdpicturePDF.SelectPage(1); float userUnits = gdpicturePDF.GetPageUserUnit(); if (gdpicturePDF.GetStat() == GdPictureStatus.OK) { message += "Page User Units: " + userUnits.ToString(); float pageHeight = gdpicturePDF.GetPageHeight(); if (gdpicturePDF.GetStat() == GdPictureStatus.OK) { float pageWidth = gdpicturePDF.GetPageWidth(); if (gdpicturePDF.GetStat() == GdPictureStatus.OK) { float currentPageHeight = pageHeight * userUnits * 1 / 72; float currentPageWidth = pageWidth * userUnits * 1 / 72; message += "\nCurrent page dimensions in inches:\npage height = " + currentPageHeight + "\npage width = " + currentPageWidth; } else message += "\nThe GetPageWidth() method has failed with the status: " + gdpicturePDF.GetStat().ToString(); } else message += "\nThe GetPageHeight() method has failed with the status: " + gdpicturePDF.GetStat().ToString(); } else message += "The GetPageUserUnit() method has failed with the status: " + gdpicturePDF.GetStat().ToString(); MessageBox.Show(message, caption); } else MessageBox.Show("The file can't be loaded.", caption); gdpicturePDF.Dispose();