How to save a part of canvas as image file?

[ozgureffe]

Is it possible to save some part of canvas as new image file.

Or do I have to save whole image first than crop that part with Drawbitmap method?

 

[Erel]

You will need to draw the part you want to a new bitmap and then save the bitmap.

 

[ozgureffe]

So where am I wrong?

Sub nextPanel_Click
    Dim Out As OutputStream

[COLOR=DarkRed]    [B]bmp_note[/B].Initialize3(cnvs_note.Bitmap)[/COLOR]
    
    fileNameFull = panelNum & ".PNG"
    Out = File.OpenOutput(File.DirRootExternal & "/temp",[B]fileNameFull[/B], False)
    [B]bmp_note[/B].WriteToStream(out, 100, "PNG")
    Out.Close

[COLOR=DarkRed]   [B] bmp_NotePart[/B].InitializeMutable(300,300)
    cnvs_note.Initialize2(bmp_NotePart)[/COLOR]
    
    FileNamePart = panelNum & "_p.PNG"    
    Out = File.OpenOutput(File.DirRootExternal & "/temp",[B]fileNamePart[/B], False)
    [B]bmp_NotePart[/B].WriteToStream(out, 100, "PNG")
    Out.Close
    
    cnvs_note.Initialize(pnl_notePanel)
End Sub

I am getting only a blank image as "fileNamePart" file instead of cropped part of my image despite my canvas is not.

Thank you.

 

[Erel]

The image is not copied to the bitmap when you call Initialize2. The previous canvas is just ignored.
You are missing:

cnvs_note.DrawBitmap(bmp_note, ...

 

[ozgureffe]

Thank you so much Erel, once again.
It works now...