How to overwrite an existing Bitmap file

using (Bitmap bitmap = new Bitmap((int)(scale * page.Width), (int)(scale * page.Height)))

{

Graphics graphics = Graphics.FromImage(bitmap);

graphics.SmoothingMode = SmoothingMode.AntiAlias;

graphics.ScaleTransform(scale, scale);

graphics.Clear(Color.White);

page.Draw(graphics);

bitmap.Save("C:\\Image.tiff", ImageFormat.Tiff);

}

As you can see in the code above, I am generating a Bitmap and saving it as image.tiff. I want to beable to re-run this piece of code over and over, but the bitmap.save does not allow you to re-write over the same file, how to I achieve this

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How to overwrite an existing Bitmap file

J Kramer

Hey PJ,

Unfortunately that doesn't work because I still can't save over the save tiff file over and over!

Kevin Linder

Why don't you create a BitmapSaver class or something. Your own helper class that can be used to save the bitmap's with some extra logic you added

public class BitmapSaver
{
private BitmapSaver()
{
// Hide ctor.
}

public void Save( Bitmap bitmap )
{
Graphics graphics = Graphics.FromImage(bitmap);
graphics.SmoothingMode = SmoothingMode.AntiAlias;
graphics.ScaleTransform(scale, scale);
graphics.Clear(Color.White);
page.Draw(graphics);

bitmap.Save("C:\\Image.tiff", ImageFormat.Tiff);
}
}

sticky

Then just create a overload that excepts a string argument that represents the path to the file.

public class BitmapSaver
{
private BitmapSaver()
{
// Hide ctor.
}

public void Save( Bitmap bitmap, string filename )
{
Graphics graphics = Graphics.FromImage(bitmap);
graphics.SmoothingMode = SmoothingMode.AntiAlias;
graphics.ScaleTransform(scale, scale);
graphics.Clear(Color.White);
page.Draw(graphics);

bitmap.Save("filename", ImageFormat.Tiff);
}
}

How to overwrite an existing Bitmap file

Answer this question

How to overwrite an existing Bitmap file

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Visual C#

How to overwrite an existing Bitmap file

How to overwrite an existing Bitmap file

J Kramer

Kevin Linder

sticky