Syntax
[WebGetAttribute()]
[OperationContractAttribute(Name="ConvertImage",
Action="ConvertImage",
AsyncPattern=false,
IsOneWay=false,
IsInitiating=true,
IsTerminating=false)]
[FaultContractAttribute(System.Type)]
public Stream Convert(
string uri,
string username,
string password,
RasterImageFormat format,
int bitsPerPixel,
int width,
int height,
string backColor,
int qualityFactor
)
<WebGetAttribute()>
<OperationContractAttribute(Name="ConvertImage", Action="ConvertImage")>
<FaultContractAttribute(DetailType=Leadtools.Services.Raster.FaultContracts.RasterFault,
Action="",
Name="",
Namespace="",
ProtectionLevel=ProtectionLevel.None,
HasProtectionLevel=False)>
Overloads Function Convert( _
ByVal uri As String, _
ByVal username As String, _
ByVal password As String, _
ByVal format As Leadtools.RasterImageFormat, _
ByVal bitsPerPixel As Integer, _
ByVal width As Integer, _
ByVal height As Integer, _
ByVal backColor As String, _
ByVal qualityFactor As Integer _
) As Stream
[WebGetAttribute()]
[OperationContractAttribute(Name="ConvertImage", Action="ConvertImage")]
[FaultContractAttribute(DetailType=Leadtools.Services.Raster.FaultContracts.RasterFault,
Action="",
Name="",
Namespace="",
ProtectionLevel=ProtectionLevel.None,
HasProtectionLevel=false)]
Stream^ Convert(
String^ uri,
String^ username,
String^ password,
Leadtools.RasterImageFormat format,
int bitsPerPixel,
int width,
int height,
String^ backColor,
int qualityFactor
)
Parameters
username
The username who has privileges on the specified URI. Must be passes as (domain/username).
password
The password for the specified user.
bitsPerPixel
Value that indicates the number of bits for the destination image.
width
The new image width in pixels.
height
The new image height in pixels.
backColor
A color value to determine how to fill the background color if the image dimensions are smaller than width and height. Can be HTML named colors or hexadecimal color values.
qualityFactor
The QualityFactor to be used when converting the image, refer to Save.
Return Value
A Stream that contains the document data.
Example
This example will convert TIF file on Sharepoint to BMP and save it on disk.
using Leadtools.Services;
public void ConvertImageExample()
{
byte[] buffer = new byte[1024 * 64];
int totalBytesRead = 0;
MemoryStream memoryStream = new MemoryStream();
RasterServiceClient client = new RasterServiceClient();
Stream stream = client.ConvertImage(@"http://sp2007ep/Ocr/Shared%20Documents/OCR.TIF", "username", "password", RasterImageFormat.Bmp, 24, 200, 200, "White", 0);
int bytesRead;
while ((bytesRead = stream.Read(buffer, 0, buffer.Length)) > 0)
{
totalBytesRead += bytesRead;
memoryStream.Write(buffer, 0, bytesRead);
}
File.WriteAllBytes(Path.Combine(LEAD_VARS.ImagesDir, "convertimage.bmp"), memoryStream.ToArray());
client.Close();
}
static class LEAD_VARS
{
public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images";
}
Imports Leadtools.Services
Public Sub ConvertImageExample()
Dim buffer As Byte() = New Byte(1024 * 64 - 1) {}
Dim totalBytesRead As Integer = 0
Dim memoryStream As MemoryStream = New MemoryStream()
Dim client As RasterServiceClient = New RasterServiceClient()
Dim stream As Stream = client.ConvertImage("http://sp2007ep/Ocr/Shared%20Documents/OCR.TIF", "username", "password", RasterImageFormat.Bmp, 24, 200, 200, "White", 0)
Dim bytesRead As Integer
'TODO: INSTANT VB TODO TASK: Assignments within expressions are not supported in VB.NET
'ORIGINAL LINE: while ((bytesRead = stream.Read(buffer, 0, buffer.Length)) > 0)
Do While (bytesRead = stream.Read(buffer, 0, buffer.Length)) > 0
totalBytesRead += bytesRead
memoryStream.Write(buffer, 0, bytesRead)
Loop
File.WriteAllBytes(Path.Combine(LEAD_VARS.ImagesDir, "convertimage.bmp"), memoryStream.ToArray())
client.Close()
End Sub
Public NotInheritable Class LEAD_VARS
Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images"
End Class
