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LarryBoyColorado asked on

How to get hDIB from .NET/C# Bitmap control

I am using a third-party image analysis toolkit that wants me to pass in a Windows hDIB. I can't determine how to get a DIB (even a copy) from the standard .net Bitmap control.

The third-party toolkit sees and "hDIB" as an Int.
File Sharing SoftwareC#

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LarryBoyColorado

8/22/2022 - Mon
ASKER CERTIFIED SOLUTION
Carl Tawn

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ASKER
LarryBoyColorado

Found out you need to free the object as well (example from MSDN)...

using System.Runtime.InteropServices;
...
[DllImport("gdi32.dll")]
public static extern bool DeleteObject(IntPtr hObject);
...
Bitmap bm = new Bitmap("Picture.jpg");
IntPtr hBitmap = bm.GetHbitmap();
// Do something with hBitmap.
DeleteObject(hBitmap);
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