Touhou Borderless Patch

Adds borderless fullscreen support to Touhou games with aspect ratio preservation.

Games

Tip

This patch might work with other entires!

• This list shows games that are confirmed to work.
• Feel free to test it with other games & report back!

• Touhou 10
• Touhou 12
• Touhou 15

Tweaks

• The game has Desktop Window Manager opt in for MMCSS scheduling.
• The game will no longer block the Windows key when DirectInput is being used.

Usage

Caution

The patch promotes windowed mode to borderless fullscreen.

• Open a supported game's configuration tool.
• Select windowed mode & the highest available resolution.

Using fullscreen isn't supported & the patch will refuse to work.

• Download the latest release of thbp.
• Locate a supported game on your system.
• Place dinput8.dll in the install directory.

FAQ

Why does the patch require windowed mode?

The patch intentionally avoids intercepting game functionality.

• This removes the need to handle game specific edge cases.
• Additionally makes it compatible with both disk & Steam versions.

The game's fullscreen handling is also "somewhat" fragile on modern systems.

• Forcing windowed mode ensures a game doesn't "deadlock".
• Allows the patch to safely promote a game to use borderless fullscreen.

Why not use vpatch for "borderless fullscreen"?

Though vpatch allows one to run the games at any resolution.

• It requires the user to intervene & configure it,
• Additionally you must somewhat compromise on fullscreen.

Additionally, vpatch only works with the disk version of the games.

• If you want to use it with the Steam version, it must be converted.

This patch solely serves as a plug & play solution for borderless fullscreen.

Build

1. Install MinGW (x86).
2. Run BUILD.cmd to build the project.