• Driver solution is ready in https://github.com/TopSoftdeveloper/Bypass-SetWindowDisplayAffinity

On Microsoft Windows, applications can restrict screen capturing by using the SetWindowDisplayAffinity API with the following flags:

• WDA_MONITOR
• WDA_EXCLUDEFROMCAPTURE

These flags are commonly used to prevent screenshots and screen recording by most capture tools (e.g. Print Screen, Snipping Tool, OBS, etc.).

This repository demonstrates a non-invasive technique to capture screenshots of such protected windows without using DLL injection or API hooking.

Historically, developers attempting to bypass this protection have relied on:

• DLL injection into the target process
• Hooking SetWindowDisplayAffinity to modify or override its parameters

While effective, those approaches:

• Modify the target process
• Are intrusive and easier to detect
• Can introduce instability or security risks

This project explores an alternative approach that avoids injecting code into the protected application.

The concept is inspired by and related to the following reference project:

🔗 Reference: https://github.com/wongfei/wda_monitor_trick

This repository builds upon the idea to show how screenshots can still be obtained under specific conditions, even when WDA_MONITOR or WDA_EXCLUDEFROMCAPTURE is enabled.

• ✅ No DLL injection
• ✅ No API hooking inside the target process
• ✅ Works on windows protected by SetWindowDisplayAffinity
• ❌ Not guaranteed to work on all Windows versions or GPU drivers
• ❌ Not intended for production or malicious usage

Check video.mp4 file to understand how it works.

If you’d like to discuss the project or support future research:

• Telegram: @liweiworker