c# wpf assign bitmap

Question

I used to work with WFA but no I want to try the WPF platform, too.

I need to assign an existing bitmap to the image control.

private void Window_Loaded(object sender, RoutedEventArgs e)
{
    Bitmap sc = screenshot();
    ima.Source = new Bitmap(sc);
 }

this line just not working: ima.Source = new Bitmap(sc);

in picturebox it i can only use this

ima.Image = new Bitmap(sc);

but now its throwing an error:

Cannot implicitly convert type 'System.Drawing.Bitmap' to 'System.Windows.Media.ImageSource'.

@AbinMathew no... i really need to.. – Jul 16 '15 at 20:19 — , Jul 16 '15 at 20:19
i just added another method to convert please have a look. – Abin Jul 16 '15 at 20:30 — Abin, Jul 16 '15 at 20:30

score 1 · Answer 1 · edited May 23 '17 at 11:44

You could also use the Search function: Convert System.Drawing.Bitmap to BitmapImage

private BitmapImage BitmapToImageSource(System.Drawing.Bitmap bitmap)
    {
        Image i = new Image();

        using (MemoryStream memory = new MemoryStream())
        {
            bitmap.Save(memory, System.Drawing.Imaging.ImageFormat.Bmp);
            memory.Position = 0;
            BitmapImage bitmapimage = new BitmapImage();
            bitmapimage.BeginInit();
            bitmapimage.StreamSource = memory;
            bitmapimage.CacheOption = BitmapCacheOption.OnLoad;
            bitmapimage.EndInit();

            i.Source = bitmapimage;

            return bitmapimage;
        }
    }

Abin · Accepted Answer · 2015-07-16T20:29:24.867

0

This will convert the path to ImageSource.

<Image>
    <Image.Source>
         <BitmapImage UriSource="{Binding ImagePath}" />
    </Image.Source>
</Image>

try in this way.

public ImageSource imageSourceForImageControl
{
  get
   {
     ImageSourceConverter c = new ImageSourceConverter();
     return (ImageSource)c.ConvertFrom(yourBitmap);
   }
}

https://msdn.microsoft.com/en-us/library/system.windows.media.imagesourceconverter(v=vs.110).aspx

edited Jul 16 '15 at 20:29

answered Jul 16 '15 at 17:43

Abin

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allright what i do need to do now in order to assign the Imagepath in the c#? – Jul 16 '15 at 17:44
Create a property in C#/VB called ImagePath, then assign the path to that property. eg: VB Public Property ImagePath() As String Get Return _ImagePath End Get Set(value As String) _ImagePath = value NotifyPropertyChanged("ImagePath") End Set End Property – Abin Jul 16 '15 at 17:48
but i dont have here the source.. im just generation an new bitmap using `screenshot` method. it returns a screen shot. its not an local image on the computer or somthing, – Jul 16 '15 at 17:50
if that is the case you can take the answer given by "Schwarzbrot" and set the bitmapImage to the xaml. – Abin Jul 16 '15 at 17:52
its slow as hell bro... – Jul 16 '15 at 17:53
how about saving screen shot and take the path ? – Abin Jul 16 '15 at 17:55
no no no i use it for screen sharing program – Jul 16 '15 at 17:57
Am happy that it worked for you. – Abin Jul 17 '15 at 13:22
it didnt but thanks. i just using `windowsformshost` and added a picturebox to my wpf project... best solution trust me :P – Jul 17 '15 at 13:23
.Net framework 4.5 and above, if you are using then it works for ImageSourceConverter – Abin Jul 17 '15 at 13:25

c# wpf assign bitmap

2 Answers2