https://learn.microsoft.com/en-us/dotnet/api/system.windows.forms.control.invokepaintbackground?view=netframework-4.8.1&viewFallbackFrom=windowsdesktop-8.0
Control.InvokePaintBackground(Control, PaintEventArgs) Method (System.Windows.Forms) | Microsoft...
Raises the PaintBackground event for the specified control.
windows formscontrolmethodsystemmicrosoft