RotatePageEx Method (GdPicturePDF)
In This Topic
Rotates counterclockwise the whole content of the currently selected page in the loaded PDF document through an angle you have specified.
Syntax
Parameters
- Angle
- The angle of rotation. This parameter is without any restrictions.
Return Value
A member of the GdPictureStatus enumeration. If the method has been successfully followed, then the return value is GdPictureStatus.OK.
We strongly recommend always checking this status first.
Example
How to rotate the content of the first page counterclockwise by 45 degrees.
Dim caption As String = "Example: RotatePageEx"
Dim gdpicturePDF As New GdPicturePDF()
If gdpicturePDF.LoadFromFile("test.pdf", False) = GdPictureStatus.OK Then
Dim status As GdPictureStatus = gdpicturePDF.SelectPage(1)
If status = GdPictureStatus.OK Then
status = gdpicturePDF.RotatePageEx(45)
If status = GdPictureStatus.OK Then
Dim message As String = "The page has been rotated successfully"
If gdpicturePDF.SaveToFile("test_RotatePageEx.pdf") = GdPictureStatus.OK Then
message = message + " and the file has been saved."
Else
message = message + ", but the file can't be saved."
End If
MessageBox.Show(message, caption)
Else
MessageBox.Show("The RotatePageEx() method has failed with the status: " + status.ToString(), caption)
End If
Else
MessageBox.Show("The SelectPage() method has failed with the status: " + status.ToString(), caption)
End If
Else
MessageBox.Show("The file can't be loaded.", caption)
End If
gdpicturePDF.Dispose()
string caption = "Example: RotatePageEx";
GdPicturePDF gdpicturePDF = new GdPicturePDF();
if (gdpicturePDF.LoadFromFile("test.pdf", false) == GdPictureStatus.OK)
{
GdPictureStatus status = gdpicturePDF.SelectPage(1);
if (status == GdPictureStatus.OK)
{
status = gdpicturePDF.RotatePageEx(45);
if (status == GdPictureStatus.OK)
{
string message = "The page has been rotated successfully";
if (gdpicturePDF.SaveToFile("test_RotatePageEx.pdf") == GdPictureStatus.OK)
message = message + " and the file has been saved.";
else
message = message + ", but the file can't be saved.";
MessageBox.Show(message, caption);
}
else
MessageBox.Show("The RotatePageEx() method has failed with the status: " + status.ToString(), caption);
}
else
MessageBox.Show("The SelectPage() method has failed with the status: " + status.ToString(), caption);
}
else
MessageBox.Show("The file can't be loaded.", caption);
gdpicturePDF.Dispose();
Example
How to rotate the content of the first page counterclockwise by 45 degrees.
Dim caption As String = "Example: RotatePageEx"
Dim gdpicturePDF As New GdPicturePDF()
If gdpicturePDF.LoadFromFile("test.pdf", False) = GdPictureStatus.OK Then
Dim status As GdPictureStatus = gdpicturePDF.SelectPage(1)
If status = GdPictureStatus.OK Then
status = gdpicturePDF.RotatePageEx(45)
If status = GdPictureStatus.OK Then
Dim message As String = "The page has been rotated successfully"
If gdpicturePDF.SaveToFile("test_RotatePageEx.pdf") = GdPictureStatus.OK Then
message = message + " and the file has been saved."
Else
message = message + ", but the file can't be saved."
End If
MessageBox.Show(message, caption)
Else
MessageBox.Show("The RotatePageEx() method has failed with the status: " + status.ToString(), caption)
End If
Else
MessageBox.Show("The SelectPage() method has failed with the status: " + status.ToString(), caption)
End If
Else
MessageBox.Show("The file can't be loaded.", caption)
End If
gdpicturePDF.Dispose()
string caption = "Example: RotatePageEx";
GdPicturePDF gdpicturePDF = new GdPicturePDF();
if (gdpicturePDF.LoadFromFile("test.pdf", false) == GdPictureStatus.OK)
{
GdPictureStatus status = gdpicturePDF.SelectPage(1);
if (status == GdPictureStatus.OK)
{
status = gdpicturePDF.RotatePageEx(45);
if (status == GdPictureStatus.OK)
{
string message = "The page has been rotated successfully";
if (gdpicturePDF.SaveToFile("test_RotatePageEx.pdf") == GdPictureStatus.OK)
message = message + " and the file has been saved.";
else
message = message + ", but the file can't be saved.";
MessageBox.Show(message, caption);
}
else
MessageBox.Show("The RotatePageEx() method has failed with the status: " + status.ToString(), caption);
}
else
MessageBox.Show("The SelectPage() method has failed with the status: " + status.ToString(), caption);
}
else
MessageBox.Show("The file can't be loaded.", caption);
gdpicturePDF.Dispose();
See Also