FileStream fs = new System.IO.FileStream(img_path, FileMode.Open, FileAccess.Read);
img = Image.FromStream(fs);

Image imgThumb = img.GetThumbnailImage(thumbnailSize.Width, thumbnailSize.Height, null, IntPtr.Zero);
//imgThumb use it for thumbnail

fs.Close();
fs.Dispose();

img.Dispose();

i use this for getting thumbnail, but it takes time if file is large,or i take tumbnail of multiple big size images.... that's why i ask its possible to get image thumbnail without using the image file. is this possible with the use of "IExtractImage"

hi all, is there any option to get image file thumbnail ,but without open the image file. please guide me for this. thanks in advance.

i am create a PDF file using Microsoft Print to PDF,

PaperSize paperSize = new PaperSize("Custom", 400, 200);

PrintDocument pd = new PrintDocument();

            pd.PrinterSettings.PrinterName = "Microsoft Print to PDF";
            pd.PrinterSettings.PrintToFile = true;
            pd.PrinterSettings.PrintFileName = PDF\_File\_name;

            pd.DefaultPageSettings = Default\_PrintProfile\_PDF;
            pd.PrinterSettings.DefaultPageSettings.PaperSize = paperSize;

            pd.DefaultPageSettings.PaperSize = paperSize;

            pd.PrintController = new StandardPrintController();

            pd.PrintPage += PrintPage\_As\_PDF;

            pd.Print();

but custom size not set, printable area is eqal to letter paper size. please help me for this.

hi all, i am change my exe icon its working fine with icon which have single stage icon. but if i select a icon file that have multiple size stages in icon file, icon not reflect on exe.

HANDLE handle = BeginUpdateResource(exe_file, FALSE);

char *buffer; // buffer to store raw icon data
long buffersize; // length of buffer
int hFile; // file handle

hFile = open(ico_file, O_RDONLY | O_BINARY);
if (hFile == -1)
return; // if file doesn't exist, can't be opened etc.

// calculate buffer length and load file into buffer
buffersize = filelength(hFile);
buffer = (char *)malloc(buffersize);
read(hFile, buffer, buffersize);
close(hFile);

int icon_id=1;

 UpdateResource(
  handle,  // Handle to executable
  RT\_ICON, // Resource type - icon
  MAKEINTRESOURCE(icon\_id), // Make the id 1
  
  MAKELANGID(LANG\_NEUTRAL, SUBLANG\_NEUTRAL),

  (buffer+22), 
  // skip the first 22 bytes because this is the 
  // icon header&directory entry (if the file 
  // contains multiple images the directory entries
  // will be larger than 22 bytes
  buffersize-22  // length of buffer
 );



/////////////////////

// Again, we use this structure for educational purposes.
// The icon header and directory entries can be read from
// the file.
GROUPICON grData;

icon_id=1;

// This is the header
grData.Reserved1 = 0; // reserved, must be 0
grData.ResourceType = 1; // type is 1 for icons
grData.ImageCount = 1; // number of icons in structure (1)

// This is the directory entry
grData.Width = 32; // icon width (32)
grData.Height = 32; // icon height (32)

grData.Colors = 0; // colors (256)
grData.Reserved2 = 0; // reserved, must be 0
grData.Planes = 2; // color planes
grData.BitsPerPixel = 32; // bit depth

grData.ImageSize = buffersize - 22; // size of image

grData.ResourceID = icon_id; // resource ID is 1

UpdateResource(
handle,
RT_GROUP_ICON,

  MAKEINTRESOURCE(icon\_id),
  // MAINICON contains information about the
  // application's displayed icon
  
  MAKELANGID(LANG\_NEUTRAL, SUBLANG\_NEUTRAL),

  &grData,
  // Pointer to this structure
  sizeof(GROUPICON)
 );

delete buffer; // free memory

// Perform the update, don't discard changes
// Write changes then close it.
if (!EndUpdateReso

ok thank you to guide me in right direction

please can anybody explain me how i convert my x86 project in x64 when i change it in configuration manager and set to x64 it gives error like Error 1 error C2371: 'ULONG' : redefinition; different basic types C:\Program Files (x86)\Microsoft SDKs\Windows\v7.0A\include\intsafe.h 65 1 Rec_Pen_drive plz help for this

i am using OleDbConnection to read excel files. excel file is read properly. but my form is resize and all text looks bigger and buggy when i open the connection. i really dont understand whats happend. please help me for this. thanks in advance.

DataTable sheet1 = new DataTable("Excel Sheet");
OleDbConnectionStringBuilder csbuilder = new OleDbConnectionStringBuilder();
csbuilder.Provider = "Microsoft.ACE.OLEDB.12.0";
csbuilder.DataSource = filename;
csbuilder.Add("Extended Properties", "Excel 12.0 Xml;HDR=YES");
string selectSql = @"SELECT * FROM [Sheet1$]";

            using (OleDbConnection connection = new OleDbConnection(csbuilder.ConnectionString))


            using (OleDbDataAdapter adapter = new OleDbDataAdapter(selectSql, connection))
            {
                
                connection.Open();
                adapter.Fill(sheet1);

                connection.Close();

                
            }

Bitmap bmp = new Bitmap(@"C:\Users\Ali\Desktop\1.png");
int w = bmp.Width;
int h = bmp.Height;
Lst_Data lastpointcolor = new Lst_Data() ;
for (int y = 0; y < h; y++)
{
for (int x = 0; x < w; x++)
{
Color c = bmp.GetPixel(x, y);
if (c.A != Color.Transparent.A)
{
if (lastpointcolor.color.A == Color.Transparent.A)
{
bmp.SetPixel(lastpointcolor.point.X, lastpointcolor.point.Y, Color.Red);
}
}
lastpointcolor = new Lst_Data() { point = new Point(x, y), color = bmp.GetPixel(x, y) };
}
}

        for (int y = h-1; y > 0; y--)
        {
            for (int x = w-1; x > 0; x--)
            {
                Color c = bmp.GetPixel(x, y);
                if (c.A != Color.Transparent.A)
                {
                    if (lastpointcolor.color.A == Color.Transparent.A)
                    {
                        bmp.SetPixel(lastpointcolor.point.X, lastpointcolor.point.Y, Color.Red);
                    }
                }
                lastpointcolor = new Lst\_Data() { point = new Point(x, y), color = bmp.GetPixel(x, y) };
            }
        }
        pictureBox1.Image = bmp;
    }

public struct Lst_Data
{
public Point point;
public Color color;
}

can anybody help to draw more thick border around the image

winform i m taking help from this article https://stackoverflow.com/questions/15858002/drawing-a-border-on-an-image[^] i also want to set different width of border.

hi all, can anybody help me to draw a thick border around round png.

Bitmap bmp = new Bitmap(@"C:\Users\Ali\Desktop\1.png");
int w = bmp.Width;
int h = bmp.Height;
Lst_Data lastpointcolor = new Lst_Data() ;
for (int y = 0; y < h; y++)
{
for (int x = 0; x < w; x++)
{
Color c = bmp.GetPixel(x, y);
if (c.A != Color.Transparent.A)
{
if (lastpointcolor.color.A == Color.Transparent.A)
{
bmp.SetPixel(lastpointcolor.point.X, lastpointcolor.point.Y, Color.Red);
}
}
lastpointcolor = new Lst_Data() { point = new Point(x, y), color = bmp.GetPixel(x, y) };
}
}

        for (int y = h-1; y > 0; y--)
        {
            for (int x = w-1; x > 0; x--)
            {
                Color c = bmp.GetPixel(x, y);
                if (c.A != Color.Transparent.A)
                {
                    if (lastpointcolor.color.A == Color.Transparent.A)
                    {
                        bmp.SetPixel(lastpointcolor.point.X, lastpointcolor.point.Y, Color.Red);
                    }
                }
                lastpointcolor = new Lst\_Data() { point = new Point(x, y), color = bmp.GetPixel(x, y) };
            }
        }
        pictureBox1.Image = bmp;
    }

public struct Lst_Data
{
public Point point;
public Color color;
}

thanks in advance.

can anybody guide me

how to save Image or Bitmap to svg file

thanks

hi all i am using directshow lib to capture web cam in my application all is gud capture image is ok but the webcam video screen not display properly i pass icture control handle of form to diaply webcam on my form

Rectangle rc = hControl.ClientRectangle;

ivw.SetWindowPosition(rc.X, rc.Y, rc.Width , rc.Height);

please help me for this. thank

yes thanks for all help

i already use it, and mentioned it above

hi all, i got this error Mixed mode assembly is built against version 'v2.0.50727' of runtime and cannot be loaded in the 4.0 runtime without additional configuration. i changed my app.config file but still this occur.

please help for this.

for string its working fine, now what about date time, how i compare here date time of file, to sort according this

yes i want this scaling factor in c#

ok sorry

i have 4k laptop its by default resolution is 200%

var graphics = control.CreateGraphics()) int dpi_scale_val= graphics.DpiX; but it always return 96