fix(headless): Set DX8Wrapper_IsWindowed to false to suppress assertion dialogs during shutdown

[bobtista]

Summary

• Set DX8Wrapper_IsWindowed to false in headless mode so ignoringAsserts() works - particularly during shutdown after TheGlobalData has been destroyed.

Testing

• Run headless replay to completion (-replay test.rep -headless -ignoreAsserts)
• Verify no assertion dialogs appear during shutdown

[greptile-apps]

Greptile Overview

Greptile Summary

Sets DX8Wrapper_IsWindowed to false in headless mode to ensure ignoringAsserts() works correctly throughout the entire process lifetime.

The change addresses a shutdown issue where assertion dialogs could still appear in headless mode after TheGlobalData is destroyed. The ignoringAsserts() function (Debug.cpp:153-165) checks DX8Wrapper_IsWindowed first before checking TheGlobalData, so setting it to false ensures assertions are suppressed even during late-stage shutdown when TheGlobalData may no longer be available.

The implementation uses an extern declaration to access the global DX8Wrapper_IsWindowed variable defined in dx8wrapper.cpp, and properly refactors the window initialization logic into an if-else structure with correct bracing following project style guidelines.

Confidence Score: 5/5

• This PR is safe to merge with minimal risk
• The change is well-targeted and fixes a specific shutdown issue in headless mode. The logic correctly sets DX8Wrapper_IsWindowed to false before any potential window initialization, ensuring ignoringAsserts() works throughout the entire process lifetime. The code follows project style guidelines with proper bracing and clear comments explaining the fix.
• No files require special attention

Important Files Changed

Filename	Overview
GeneralsMD/Code/Main/WinMain.cpp	Sets DX8Wrapper_IsWindowed to false in headless mode to ensure ignoringAsserts() works throughout process lifetime, preventing assertion dialogs during shutdown

[Skyaero42]

03/02/2026