Thumbnail Image
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using System;
using System.Drawing;
using System.Windows.Forms;
class Thumbnail: Form
{
const int iSquare = 64;
Image imageThumbnail;
public static void Main()
{
Application.Run(new Thumbnail());
}
public Thumbnail()
{
Text = "Thumbnail";
ResizeRedraw = true;
Image image = Image.FromFile("Color.jpg");
int cxThumbnail, cyThumbnail;
if (image.Width > image.Height)
{
cxThumbnail = iSquare;
cyThumbnail = iSquare * image.Height / image.Width;
}
else
{
cyThumbnail = iSquare;
cxThumbnail = iSquare * image.Width / image.Height;
}
imageThumbnail = image.GetThumbnailImage(cxThumbnail, cyThumbnail,
null, (IntPtr) 0);
}
protected override void OnPaint(PaintEventArgs pea)
{
DoPage(pea.Graphics, ForeColor,ClientSize.Width, ClientSize.Height);
}
protected void DoPage(Graphics grfx, Color clr, int cx, int cy)
{
for (int y = 0; y < cy; y += iSquare){
for (int x = 0; x < cx; x += iSquare)
grfx.DrawImage(imageThumbnail,
x + (iSquare - imageThumbnail.Width) / 2,
y + (iSquare - imageThumbnail.Height) / 2,
imageThumbnail.Width, imageThumbnail.Height);
}
}
}
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