Screenshot with BitBlt results in black image on Windows 10

Question

I am using the code below to capture a screenshot of the currently active window. This code comes from Capture screenshot Including Semitransparent windows in .NET, with a f

Answer 1

Likely it doesn't work for these 2 browsers because they use a hardware-accelerated graphics context (OpenGL- or DirectX-based) to render their content, and this is incompatible with GDI-based calls.