# cnc-ddraw cnc-ddraw can fix compatibility issues in older games, such as black screen, bad performance, crashes or defective Alt+Tab. ### Features - Supports Windows XP, Vista, 7, 8, 10, 11 and Wine - GDI / OpenGL / Direct3D 9 renderer (With automatic renderer selection) - Upscaling via glsl shaders - https://imgur.com/a/kxsM1oY | https://imgur.com/a/wjrhpFV - Windowed Mode / Fullscreen Exclusive Mode / Borderless Mode - Alt+Enter support to switch quickly between Fullscreen and Windowed mode - Automatically saves and restores window position/size/state - FPS Limiter - VSync - Optional mouse sensitivity scaling - Preliminary libretro shader support - https://github.com/libretro/glsl-shaders - ... ### Instructions 1. Download [cnc-ddraw.zip](https://github.com/CnCNet/cnc-ddraw/releases/latest/download/cnc-ddraw.zip) and extract it into your game folder 2. Start the game Wine (Linux/macOS) only: override `ddraw` in [winecfg](https://wiki.winehq.org/Winecfg#Libraries) If you use cnc-ddraw with a game that got its own windowed mode built in then **make sure you disable the games own windowed mode** first. If you want to play in windowed mode then start the game once in fullscreen and then press Alt+Enter to enable the cnc-ddraw windowed mode (Or enable windowed mode in the config program without using Alt+Enter). **If the game starts but it doesn't work perfectly** then open the config program and check the **Compatibility settings**. Alternatively you can also open ddraw.ini with notepad and modify the **Compatibility settings** in there. **cnc-ddraw does not support Direct3D/Glide**, it will only work with games that use a **DirectDraw (Software)** renderer. Usually you can tell by the look of the game if it's a 3D game or not, but you can also let cnc-ddraw generate a debug log and search for "IDirect3D" - Link: https://github.com/CnCNet/cnc-ddraw/issues/44 Some games may require additional steps before they can be used with cnc-ddraw, please check the [wiki](https://github.com/CnCNet/cnc-ddraw/wiki) for more details. **Compatibility settings in ddraw.ini** - If there are **problems on Alt+Tab** then try to set `noactivateapp=true` - If it still doesn't work also try `renderer=opengl` or `renderer=gdi`. - If the **game is running too fast** then try to set `maxgameticks=60` - If it's still too fast, try a lower value. - If **windowed mode or upscaling are not working properly** then try to set `hook=2` and `renderer=gdi`. - If **videos or other UI elements are invisible** then try to set `nonexclusive=true`. - If the game is **stuttering on a Freesync/G-Sync monitor** then try to set `minfps=-1`. **If the game doesn't start at all or it's crashing**, [then please generate a debug log file and upload it.](https://github.com/CnCNet/cnc-ddraw/issues/44) ### Hotkeys * [Alt] + [Enter] = Switch between windowed and fullscreen mode * [Ctrl] + [Tab] = Unlock cursor * [Right Alt] + [Right Ctrl] = Unlock cursor * [Alt] + [Page Down] = Maximize window (Window borders must be disabled in config) ### Supported Games - Command & Conquer Gold - Command & Conquer: Red Alert - Command & Conquer: Tiberian Sun - Command & Conquer: Red Alert 2 - Carmageddon - Carmageddon 2 - Warcraft 2 - StarCraft - Diablo - Diablo 2 - Age of Empires - Age of Empires II - Theme Hospital - Populous: The Beginning - Outlaws - Dungeon Keeper - Dark Reign: The Future of War - Star Wars: Galactic Battlegrounds - Atomic Bomberman - Dune 2000 - Oddworld: Abe's Oddysee - Commandos - Red Baron 3D - F-16 Multirole Fighter - F-22 Raptor - Nox - ... There are a lot more games supported but I don't usually update the list, just give it a try and if it doesn't work then check the instructions above. [](https://github.com/CnCNet/cnc-ddraw/releases)