Dim caption As String = "Example: GetPageImageResolution"
Dim gdpicturePDF As New GdPicturePDF()
If gdpicturePDF.LoadFromFile("test.pdf", False) = GdPictureStatus.OK Then
Dim message As String = ""
Dim pageCount As Integer = gdpicturePDF.GetPageCount()
Dim status As GdPictureStatus = gdpicturePDF.GetStat()
If (status = GdPictureStatus.OK) AndAlso (pageCount > 0) Then
For i As Integer = 1 To pageCount
If gdpicturePDF.SelectPage(i) = GdPictureStatus.OK Then
message = message + "Page nr." + i.ToString() + ":" + vbCrLf
Dim imageCount As Integer = gdpicturePDF.GetPageImageCount()
status = gdpicturePDF.GetStat()
If (status = GdPictureStatus.OK) AndAlso (imageCount > 0) Then
Dim hRes As Single = 0, vRes As Single = 0
For j As Integer = 0 To imageCount - 1
status = gdpicturePDF.GetPageImageResolution(j, hRes, vRes)
If status = GdPictureStatus.OK Then
message = message + "The image indexed as " + j.ToString() + " has the following resolution: horizontal = " + hRes.ToString() + ", vertical = " + vRes.ToString() + "." + vbCrLf
Else
message = message + "The GetPageImageResolution() method has failed for the image nr. " + j.ToString() + " with the status: " + status.ToString() + vbCrLf
End If
Next
Else
If status = GdPictureStatus.OK Then
message = message + "This page doesn't contain any image." + vbCrLf
Else
message = message + "The GetPageImageCount() method has failed with the status: " + status.ToString() + vbCrLf
End If
End If
Else
message = message + "The SelectPage() method has failed for the page nr. " + i.ToString() + " with the status: " + gdpicturePDF.GetStat().ToString() + vbCrLf
End If
Next
MessageBox.Show(message, caption)
Else
If status = GdPictureStatus.OK Then
MessageBox.Show("This file doesn't contain any page.", caption)
Else
MessageBox.Show("The GetPageCount() method has failed with the status: " + status.ToString(), caption)
End If
End If
Else
MessageBox.Show("The file can't be loaded.", caption)
End If
gdpicturePDF.Dispose()
string caption = "Example: GetPageImageResolution";
GdPicturePDF gdpicturePDF = new GdPicturePDF();
if (gdpicturePDF.LoadFromFile("test.pdf", false) == GdPictureStatus.OK)
{
string message = "";
int pageCount = gdpicturePDF.GetPageCount();
GdPictureStatus status = gdpicturePDF.GetStat();
if ((status == GdPictureStatus.OK) && (pageCount > 0))
{
for (int i = 1; i <= pageCount; i++)
{
if (gdpicturePDF.SelectPage(i) == GdPictureStatus.OK)
{
message = message + "Page nr." + i.ToString() + ":\n";
int imageCount = gdpicturePDF.GetPageImageCount();
status = gdpicturePDF.GetStat();
if ((status == GdPictureStatus.OK) && (imageCount > 0))
{
float hRes = 0, vRes = 0;
for (int j = 0; j < imageCount; j++)
{
status = gdpicturePDF.GetPageImageResolution(j, ref hRes, ref vRes);
if (status == GdPictureStatus.OK)
message = message + "The image indexed as " + j.ToString() + " has the following resolution: horizontal = " + hRes.ToString() + ", vertical = " + vRes.ToString() + ".\n";
else
message = message + "The GetPageImageResolution() method has failed for the image nr. " + j.ToString() + " with the status: " + status.ToString() + "\n";
}
}
else
{
if (status == GdPictureStatus.OK)
message = message + "This page doesn't contain any image.\n";
else
message = message + "The GetPageImageCount() method has failed with the status: " + status.ToString() + "\n";
}
}
else
{
message = message + "The SelectPage() method has failed for the page nr. " + i.ToString() + " with the status: " + gdpicturePDF.GetStat().ToString() + "\n";
}
}
MessageBox.Show(message, caption);
}
else
{
if (status == GdPictureStatus.OK)
MessageBox.Show("This file doesn't contain any page.", caption);
else
MessageBox.Show("The GetPageCount() method has failed with the status: " + status.ToString(), caption);
}
}
else
MessageBox.Show("The file can't be loaded.", caption);
gdpicturePDF.Dispose();
