how to capture screen and convert to gif?

Question

I know how to capture view in self thread.

but do not know how to capture screen and convert to gif.

Answer 1

In C#/WinUI, it works with IDXGIOutputDuplication::AcquireNextFrame then by converting the texture bits into WriteableBitmap
then BitmapEncoder to save as GIF or any other supported format
(tested on Windows 10 21H1)

Answer 2

well on your keyboard has a key name ( PrtSc ) this is for print screen

and save as png gif whatever

if you want the code in VB net i can provide to you

Answer 3

There are many screen capture examples, Capturing an Image(GDI), Screen capture for HWND(Windows.Graphics.Capture API), DXGI desktop duplication sample(IDXGIOutputDuplication).
Then you encode the frame data to gif using Windows Imaging Component .