No flashing windows paint double buffering

 https://answers.microsoft.com/en-us/windows/forum/all/microsoft-paint-flickers-when-using-it-in-teams/7414ab65-2f22-4a04-8e50-4d18a7878a0a

https://learn.microsoft.com/en-us/dotnet/desktop/winforms/advanced/how-to-reduce-graphics-flicker-with-double-buffering-for-forms-and-controls?view=netframeworkdesktop-4.8&redirectedfrom=MSDN
How to: Reduce Graphics Flicker with Double Buffering for Forms and Controls

https://www.codeproject.com/Articles/12870/Don-t-Flicker-Double-Buffer
Part 17 | How to remove Flickering of graphics | Double Buffering | Graphics in C++
https://stackoverflow.com/questions/1954491/stop-flickering

https://stackoverflow.com/questions/24910574/how-to-prevent-flickering-when-using-paint-method-in-c-sharp-winforms

MS Teams - FIX Screen FLICKERING When Screen Sharing
Screen sharing low resolution & flickering colors

Microsoft Teams flashes when the GPU acceleration is disabled
https://appuals.com/fix-screen-flickering-while-sharing-individual-screens-on-microsoft-teams-on-windows-10/
https://www.barco.com/en/support/knowledge-base/4840-microsoft-teams-flashes-when-the-gpu-acceleration-is-disabled
https://www.reddit.com/r/MicrosoftTeams/comments/rbsjjt/screen_flickers_in_teams_meeting/

flicker - Double buffering in delphi not enough - Stack Overflow
https://stackoverflow.com/questions/61122979/double-buffering-in-delphi-not-enough

https://learn.microsoft.com/en-us/dotnet/desktop/winforms/advanced/how-to-reduce-graphics-flicker-with-double-buffering-for-forms-and-controls?view=netframeworkdesktop-4.8
How to: Reduce Graphics Flicker with Double Buffering for Forms and Controls

https://github.com/errorcalc/FreeEsVclComponents

delphi begin update No flashing windows paint double buffering
No flashing windows paint double buffering
delphi TPaintBox control BeginUpdate

delphi begin update No flashing windows paint double bufferingNo flashing windows paint double bufferingdelphi TPaintBox control BeginUpdate TPaintBox  BeginUpdate

hdc dc device context  DC Device Context CDC HDC handle Memory DC GetDC  winuser.h
flashing delphi  device context  device context  handle memory
https://docwiki.embarcadero.com/Libraries/Sydney/en/Vcl.Graphics.TCanvas.Handle
https://learn.microsoft.com/en-us/windows/win32/controls/image-lists
https://stackoverflow.com/questions/19794785/how-to-handle-wm-erasebkgnd-to-avoid-flickering
Replacing dc getdc  GetDC    ReleaseDC

GetDC    ReleaseDC GetWindowDC
getWindowDC BeginPaint  GetDC    ReleaseDC flashing delphi  device context  device context  handle memory
https://github.com/MicrosoftDocs/win32/blob/docs/desktop-src/gdi/display-device-contexts.md
Vcl.Controls device context Replacing  Merging  Drawing
https://stackoverflow.com/questions/31196565/beginner-in-mfc-c-why-does-the-device-context-need-to-create-an-old-font-bitm
winapi - DirectX Resize shows win32 background at Edges - Stack Overflow
https://stackoverflow.com/questions/63096226/directx-resize-shows-win32-background-at-edges
https://learn.microsoft.com/zh-tw/windows/win32/api/winuser/nf-winuser-getdc
GetDC    ReleaseDC GetWindowDC
https://learn.microsoft.com/en-us/windows/win32/gdi/private-display-device-contexts

http://www.delphigroups.info/2/a9/209052.html
TCanvas BeginUpdate and EndUpdate - delphi

delphi TPaintBox control BeginUpdate
https://docwiki.embarcadero.com/CodeExamples/Sydney/en/OnPaint_(Delphi)
https://docwiki.embarcadero.com/Libraries/Alexandria/en/Vcl.Controls.TCustomControl.Paint
https://docwiki.embarcadero.com/CodeExamples/Sydney/en/BeginUpdate_(Delphi)
TImage32.BeginUpdate