From 51236f90fa79a1ef810bdea4574f86ffda5cbc0a Mon Sep 17 00:00:00 2001
From: Kelly Kinkade <kelly.lynn.martin@gmail.com>
Date: Fri, 31 Mar 2023 21:05:19 -0500
Subject: [PATCH] update steam launcher

this version launches dwarf fortress via the steam client

the existing one doesn't set up the steam app context which means access  to DF's steam workshop is broken. launching through the steam client avoids this issue.
---
 docs/changelog.txt         |  1 +
 package/windows/launchdf.c | 21 +++++++++++++++++----
 2 files changed, 18 insertions(+), 4 deletions(-)

diff --git a/docs/changelog.txt b/docs/changelog.txt
index 3fe5fdbbb..279acdef7 100644
--- a/docs/changelog.txt
+++ b/docs/changelog.txt
@@ -36,6 +36,7 @@ changelog.txt uses a syntax similar to RST, with a few special sequences:
 ## New Plugins
 
 ## Fixes
+- Steam launcher now launches Dwarf Fortress via the Steam client
 
 ## Misc Improvements
 
diff --git a/package/windows/launchdf.c b/package/windows/launchdf.c
index 9f4b01fcb..588624511 100644
--- a/package/windows/launchdf.c
+++ b/package/windows/launchdf.c
@@ -2,15 +2,28 @@
 
 int WINAPI wWinMain(HINSTANCE hi, HINSTANCE hpi, PWSTR cmd, int ns)
 {
-    STARTUPINFOA si;
+    STARTUPINFOW si;
     PROCESS_INFORMATION pi;
 
     ZeroMemory(&si, sizeof(si));
     si.cb = sizeof(si);
     ZeroMemory(&pi, sizeof(pi));
 
-    if (CreateProcessA("Dwarf Fortress.exe",
-        NULL,
+    WCHAR steamPath[1024];
+    DWORD datasize = 1024;
+
+    LONG retCode = RegGetValueW(HKEY_CURRENT_USER, L"SOFTWARE\\Valve\\Steam", L"SteamExe", RRF_RT_REG_SZ, NULL, &steamPath, &datasize);
+
+    if (retCode != ERROR_SUCCESS)
+    {
+        MessageBoxW(NULL, L"Could not find Steam client executable", NULL, 0);
+        exit(1);
+    }
+
+    WCHAR commandLine[1024] = L"steam.exe -applaunch 975370";
+
+    if (CreateProcessW(steamPath,
+        commandLine,
         NULL,
         NULL,
         FALSE,
@@ -20,7 +33,7 @@ int WINAPI wWinMain(HINSTANCE hi, HINSTANCE hpi, PWSTR cmd, int ns)
         &si,
         &pi) == 0)
     {
-        MessageBoxA(NULL, "could not launch 'Dwarf Fortress.exe'", NULL, 0);
+        MessageBoxW(NULL, L"could not launch Dwarf Fortress", NULL, 0);
         exit(1);
     }