Dim caption As String = "Example: DeleteImage"
Dim gdpicturePDF As New GdPicturePDF()
If gdpicturePDF.LoadFromFile("deleteimage.pdf", False) = GdPictureStatus.OK Then
Dim pageCount As Integer = gdpicturePDF.GetPageCount()
Dim status As GdPictureStatus = gdpicturePDF.GetStat()
If (status = GdPictureStatus.OK) AndAlso (pageCount > 0) Then
'The first page is automatically selected as the current page.
Dim imageCount As Integer = gdpicturePDF.GetPageImageCount()
status = gdpicturePDF.GetStat()
If (status = GdPictureStatus.OK) AndAlso (imageCount > 0) Then
Dim message As String = "", imageResName As String = ""
For i As Integer = imageCount - 1 To 0 Step -1
'The inverse loop will not work correctly from logical point of view (the number of images decreases).
imageResName = gdpicturePDF.GetPageImageResName(i)
status = gdpicturePDF.GetStat()
If status = GdPictureStatus.OK Then
status = gdpicturePDF.DeleteImage(imageResName)
If status = GdPictureStatus.OK Then
message = message + "The image resource named " + imageResName + " has been successfully deleted." + vbCrLf
Else
message = message + "The DeleteImage() method has failed for the image resource named " + imageResName + " with the status: " + status.ToString() + vbCrLf
End If
Else
message = message + "The GetPageImageResName() method has failed for the image indexed as " + i.ToString() + " with the status: " + status.ToString() + vbCrLf
End If
Next
If gdpicturePDF.SaveToFile("test_deleteimage.pdf") = GdPictureStatus.OK Then
message = message + "The file has been saved successfully."
Else
message = message + "The file can't be saved. Status: " + gdpicturePDF.GetStat().ToString()
End If
MessageBox.Show(message, caption)
Else
If status = GdPictureStatus.OK Then
MessageBox.Show("The first page doesn't contain any image.", caption)
Else
MessageBox.Show("The GetPageImageCount() method has failed with the status: " + status.ToString(), caption)
End If
End If
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: DeleteImage";
GdPicturePDF gdpicturePDF = new GdPicturePDF();
if (gdpicturePDF.LoadFromFile("test.pdf", false) == GdPictureStatus.OK)
{
int pageCount = gdpicturePDF.GetPageCount();
GdPictureStatus status = gdpicturePDF.GetStat();
if ((status == GdPictureStatus.OK) && (pageCount > 0))
{
//The first page is automatically selected as the current page.
int imageCount = gdpicturePDF.GetPageImageCount();
status = gdpicturePDF.GetStat();
if ((status == GdPictureStatus.OK) && (imageCount > 0))
{
string message = "", imageResName = "";
for (int i = imageCount - 1; i >= 0; i--)
//The inverse loop will not work correctly from logical point of view (the number of images decreases).
{
imageResName = gdpicturePDF.GetPageImageResName(i);
status = gdpicturePDF.GetStat();
if (status == GdPictureStatus.OK)
{
status = gdpicturePDF.DeleteImage(imageResName);
if (status == GdPictureStatus.OK)
message = message + "The image resource named " + imageResName + " has been successfully deleted.\n";
else
message = message + "The DeleteImage() method has failed for the image resource named " + imageResName + " with the status: " + status.ToString() + "\n";
}
else
message = message + "The GetPageImageResName() method has failed for the image indexed as " + i.ToString() + " with the status: " + status.ToString() + "\n";
}
if (gdpicturePDF.SaveToFile("test_DeleteImage.pdf") == GdPictureStatus.OK)
message = message + "The file has been saved successfully.";
else
message = message + "The file can't be saved. Status: " + gdpicturePDF.GetStat().ToString();
MessageBox.Show(message, caption);
}
else
{
if (status == GdPictureStatus.OK)
MessageBox.Show("The first page doesn't contain any image.", caption);
else
MessageBox.Show("The GetPageImageCount() method has failed with the status: " + status.ToString(), 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();