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Installer: Add a browse button to change the path of the game
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@IntriguingTiles
IntriguingTiles committed Mar 18, 2023
1 parent 42bceb0 commit f985517
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Showing 3 changed files with 167 additions and 100 deletions.
250 changes: 157 additions & 93 deletions Installer/Installer.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -30,61 +30,64 @@ BOOL IsWindowsVersionOrGreater(WORD wMajorVersion, WORD wMinorVersion, WORD wSer
return VerifyVersionInfoW(&osvi, VER_MAJORVERSION | VER_MINORVERSION | VER_SERVICEPACKMAJOR, dwlConditionMask) != FALSE;
}

std::wstring LocateHalfLife(HWND hWindow) {
std::wstring OpenFolderPicker(HWND hWindow) {
wchar_t buffer[MAX_PATH];
memset(buffer, 0, sizeof(buffer));
DWORD size = MAX_PATH;
DWORD type = 0;
HKEY key = NULL;
RegOpenKeyEx(HKEY_CURRENT_USER, L"SOFTWARE\\Valve\\Steam", 0, KEY_READ, &key);
LSTATUS status = RegQueryValueEx(key, L"ModInstallPath", NULL, &type, (LPBYTE)buffer, &size);

if (status != ERROR_SUCCESS || type != REG_SZ) {
// open folder picker

if (SUCCEEDED(CoInitializeEx(NULL, COINIT_APARTMENTTHREADED))) {
if (IsWindowsVersionOrGreater(HIBYTE(_WIN32_WINNT_VISTA), LOBYTE(_WIN32_WINNT_VISTA), 0)) {
// use modern folder picker
IFileOpenDialog* fileDialog;
if (SUCCEEDED(CoCreateInstance(CLSID_FileOpenDialog, NULL, CLSCTX_ALL, IID_IFileOpenDialog, (LPVOID*)&fileDialog))) {
fileDialog->SetTitle(L"Select your Half-Life folder");
fileDialog->SetOptions(FOS_PICKFOLDERS | FOS_PATHMUSTEXIST | FOS_FILEMUSTEXIST);
if (SUCCEEDED(fileDialog->Show(hWindow))) {
IShellItem* item;
if (SUCCEEDED(fileDialog->GetResult(&item))) {
PWSTR pszFilePath = NULL;
// it seems that older versions of IShellItem don't like to use already allocated buffers
item->GetDisplayName(SIGDN_FILESYSPATH, &pszFilePath);
item->Release();
fileDialog->Release();
std::wstring ret(pszFilePath);
CoTaskMemFree(pszFilePath);
CoUninitialize();
RegCloseKey(key);
return ret;
}

if (SUCCEEDED(CoInitializeEx(NULL, COINIT_APARTMENTTHREADED))) {
if (IsWindowsVersionOrGreater(HIBYTE(_WIN32_WINNT_VISTA), LOBYTE(_WIN32_WINNT_VISTA), 0)) {
// use modern folder picker
IFileOpenDialog* fileDialog;
if (SUCCEEDED(CoCreateInstance(CLSID_FileOpenDialog, NULL, CLSCTX_ALL, IID_IFileOpenDialog, (LPVOID*)&fileDialog))) {
fileDialog->SetTitle(L"Select your Half-Life folder");
fileDialog->SetOptions(FOS_PICKFOLDERS | FOS_PATHMUSTEXIST | FOS_FILEMUSTEXIST);
if (SUCCEEDED(fileDialog->Show(hWindow))) {
IShellItem* item;
if (SUCCEEDED(fileDialog->GetResult(&item))) {
PWSTR pszFilePath = NULL;
// it seems that older versions of IShellItem don't like to use already allocated buffers
item->GetDisplayName(SIGDN_FILESYSPATH, &pszFilePath);
item->Release();
fileDialog->Release();
std::wstring ret(pszFilePath);
CoTaskMemFree(pszFilePath);
CoUninitialize();
return ret;
}
fileDialog->Release();
}
fileDialog->Release();
}
else {
// use the crusty old one
OleInitialize(NULL);
BROWSEINFO bi{};
bi.lpszTitle = L"Select your Half-Life folder.";
bi.ulFlags = BIF_USENEWUI;
PIDLIST_ABSOLUTE pid = SHBrowseForFolder(&bi);

if (pid) {
SHGetPathFromIDList(pid, buffer);
CoTaskMemFree(pid);
}
}
else {
// use the crusty old one
OleInitialize(NULL);
BROWSEINFO bi{};
bi.lpszTitle = L"Select your Half-Life folder.";
bi.ulFlags = BIF_USENEWUI;
PIDLIST_ABSOLUTE pid = SHBrowseForFolder(&bi);

if (pid) {
SHGetPathFromIDList(pid, buffer);
CoTaskMemFree(pid);
}
CoUninitialize();
}
CoUninitialize();
}

return std::wstring(buffer);
}

std::wstring LocateHalfLifeFromRegistry() {
wchar_t buffer[MAX_PATH];
memset(buffer, 0, sizeof(buffer));
DWORD size = MAX_PATH;
DWORD type = 0;
HKEY key = NULL;

RegOpenKeyEx(HKEY_CURRENT_USER, L"SOFTWARE\\Valve\\Steam", 0, KEY_READ, &key);
RegQueryValueEx(key, L"ModInstallPath", NULL, &type, (LPBYTE)buffer, &size);
RegCloseKey(key);

return std::wstring(buffer);
}

Expand Down Expand Up @@ -124,8 +127,9 @@ BOOL IsLauncherPatched(std::wstring path) {
rewind(file);
BYTE* data = (BYTE*)malloc(size);
fread(data, 1, size, file);
fclose(file);

if (FindInArray(data, size, "hl.fix", 6) || FindInArray(data, size, "sw.fix", 6)) {
if (FindInArray(data, size, "hl.fix", 6) != -1 || FindInArray(data, size, "sw.fix", 6) != -1) {
free(data);
return TRUE;
}
Expand All @@ -138,26 +142,17 @@ BOOL IsLauncherPatched(std::wstring path) {
return FALSE;
}

void UpdateButtonsAndText(HWND hWindow, std::wstring path, BOOL patched, BOOL firstUpdate) {
EnableWindow(GetDlgItem(hWindow, IDUNINSTALL), patched);
SendMessage(GetDlgItem(hWindow, IDINSTALL), WM_SETTEXT, NULL, (LPARAM)(patched ? L"Reinstall" : L"Install"));

wchar_t statusStr[MAX_PATH * 2];
swprintf_s(statusStr, MAX_PATH * 2, L"Half-Life installation found at: %s\n\nHLFixes is currently %s.", path.c_str(), patched ? L"installed" : L"not installed");

void SetPathText(HWND hWindow, std::wstring path, BOOL resize) {
RECT rect{ 0, 0, 0, 0 };
int err = 0;
DrawText(GetDC(hWindow), statusStr, -1, &rect, DT_CALCRECT);
SetWindowPos(GetDlgItem(hWindow, IDC_HLSTATUS), NULL, 0, 0, rect.right, rect.bottom, SWP_NOMOVE);
SetWindowText(GetDlgItem(hWindow, IDC_HLSTATUS), statusStr);
DrawText(GetDC(hWindow), path.c_str(), -1, &rect, DT_CALCRECT);

if (firstUpdate) {
if (resize) {
// resize window to fit the status text and center it while we're at it
RECT wRect{ 0, 0, 0, 0 };
RECT dRect{ 0, 0, 0, 0 };
RECT dRect2{ 0, 0, 0, 0 };
GetWindowRect(hWindow, &wRect);
SetWindowPos(hWindow, NULL, 0, 0, max(wRect.right - wRect.left, rect.right - 200), wRect.bottom, SWP_NOMOVE);
SetWindowPos(hWindow, NULL, 0, 0, max(wRect.right - wRect.left, rect.right + 80), wRect.bottom, SWP_NOMOVE);
GetWindowRect(hWindow, &wRect);
GetWindowRect(GetDesktopWindow(), &dRect);
CopyRect(&dRect2, &dRect);
Expand All @@ -166,12 +161,58 @@ void UpdateButtonsAndText(HWND hWindow, std::wstring path, BOOL patched, BOOL fi
OffsetRect(&dRect2, -wRect.right, -wRect.bottom);
SetWindowPos(hWindow, NULL, dRect.left + (dRect2.right / 2), dRect.top + (dRect2.bottom / 2), 0, 0, SWP_NOSIZE);
}

SetWindowText(GetDlgItem(hWindow, IDC_HLDIR), path.c_str());
}

void SetStatusText(HWND hWindow, std::wstring statusText) {
RECT rect{ 0, 0, 0, 0 };
DrawText(GetDC(hWindow), statusText.c_str(), -1, &rect, DT_CALCRECT);
SetWindowPos(GetDlgItem(hWindow, IDC_HLSTATUS), NULL, 0, 0, rect.right, rect.bottom, SWP_NOMOVE);
SetWindowText(GetDlgItem(hWindow, IDC_HLSTATUS), statusText.c_str());
}

BOOL UpdateWindowFromPath(HWND hWindow, std::wstring path, BOOL firstUpdate) {
SetPathText(hWindow, path, firstUpdate);
// reset install button text
SendMessage(GetDlgItem(hWindow, IDINSTALL), WM_SETTEXT, NULL, (LPARAM)L"Install");

if (!DirExists(path.c_str())) {
// no path, disable buttons and set status text
EnableWindow(GetDlgItem(hWindow, IDUNINSTALL), FALSE);
EnableWindow(GetDlgItem(hWindow, IDINSTALL), FALSE);
SetStatusText(hWindow, L"Select your Half-Life folder.");
return FALSE;
}

if (!FileExists((path + L"\\hl.exe").c_str())) {
// no hl.exe, disable buttons and set status text
EnableWindow(GetDlgItem(hWindow, IDUNINSTALL), FALSE);
EnableWindow(GetDlgItem(hWindow, IDINSTALL), FALSE);
SetStatusText(hWindow, L"The Half-Life launcher is not in the specified path.");
return FALSE;
}

if (IsLauncherPatched(path + L"\\hl.exe")) {
// hl.exe is present and patched
EnableWindow(GetDlgItem(hWindow, IDUNINSTALL), TRUE);
EnableWindow(GetDlgItem(hWindow, IDINSTALL), TRUE);
SendMessage(GetDlgItem(hWindow, IDINSTALL), WM_SETTEXT, NULL, (LPARAM)L"Reinstall");
SetStatusText(hWindow, L"HLFixes is currently installed.");
return TRUE;
}

// hl.exe is present and unpatched
EnableWindow(GetDlgItem(hWindow, IDUNINSTALL), FALSE);
EnableWindow(GetDlgItem(hWindow, IDINSTALL), TRUE);
SetStatusText(hWindow, L"HLFixes is currently not installed.");
return TRUE;
}

INT_PTR CALLBACK DialogProc(HWND hWindow, UINT uMsg, WPARAM wParam, LPARAM lParam) {
static std::wstring path;
static BYTE* data;
static long size;
static BYTE* data = NULL;
static long size = 0;

switch (uMsg) {
case WM_CLOSE:
Expand All @@ -185,6 +226,8 @@ INT_PTR CALLBACK DialogProc(HWND hWindow, UINT uMsg, WPARAM wParam, LPARAM lPara
GetWindowRect(hWindow, &rect);
SetWindowPos(GetDlgItem(hWindow, IDINSTALL), NULL, 11, rect.bottom - rect.top - 91, 0, 0, SWP_NOSIZE);
SetWindowPos(GetDlgItem(hWindow, IDUNINSTALL), NULL, rect.right - rect.left - 162, rect.bottom - rect.top - 91, 0, 0, SWP_NOSIZE);
SetWindowPos(GetDlgItem(hWindow, IDC_HLDIR), NULL, 0, 0, rect.right - rect.left - 207, 21, SWP_NOMOVE);
SetWindowPos(GetDlgItem(hWindow, IDC_BROWSE), NULL, rect.right - rect.left - 102, 11, 0, 0, SWP_NOSIZE);
return TRUE;
}
case WM_GETMINMAXINFO: {
Expand All @@ -194,49 +237,38 @@ INT_PTR CALLBACK DialogProc(HWND hWindow, UINT uMsg, WPARAM wParam, LPARAM lPara
break;
}
case WM_INITDIALOG: {
// i can't quite get the positioning right in the dialog editor so i'm doing this instead :sob:
SetWindowPos(GetDlgItem(hWindow, IDC_HLDIR), NULL, 100, 12, 0, 0, SWP_NOSIZE);
// check if HLFixes.dll exists
if (!FileExists(L"HLFixes.dll")) {
MessageBox(hWindow, L"The installer was unable to locate HLFixes.dll.", HLTITLE, MB_OK | MB_ICONERROR);
_exit(-1);
return FALSE;
}

// get HL path
path = LocateHalfLife(hWindow);
PostMessage(hWindow, WM_NEXTDLGCTL, 0, FALSE);

// check if the path actually exists
if (!DirExists(path.c_str())) {
// just exit since the user probably clicked "Cancel" in the dialog
_exit(-1);
return FALSE;
}
// get HL path from registry
path = LocateHalfLifeFromRegistry();

// check if hl.exe exists
if (!FileExists((path + L"\\hl.exe").c_str())) {
MessageBox(hWindow, L"The installer was unable to locate the Half-Life launcher.", HLTITLE, MB_OK | MB_ICONERROR);
_exit(-1);
return FALSE;
}
if (UpdateWindowFromPath(hWindow, path, TRUE)) {
// load hl.exe into memory
FILE* file;
_wfopen_s(&file, (path + L"\\hl.exe").c_str(), L"rb");

// load hl.exe into memory
FILE* file;
_wfopen_s(&file, (path + L"\\hl.exe").c_str(), L"rb");
if (!file) {
MessageBox(hWindow, L"The installer was unable to read the Half-Life launcher.\nTry restarting the installer as an Administrator.", HLTITLE, MB_OK | MB_ICONERROR);
return TRUE;
}

if (!file) {
MessageBox(hWindow, L"The installer was unable to read the Half-Life launcher.\nTry restarting the installer as an Administrator.", HLTITLE, MB_OK | MB_ICONERROR);
_exit(-1);
return FALSE;
fseek(file, 0, SEEK_END);
size = ftell(file);
rewind(file);
data = (BYTE*)malloc(size);
fread(data, 1, size, file);
fclose(file);
}

fseek(file, 0, SEEK_END);
size = ftell(file);
rewind(file);
data = (BYTE*)malloc(size);
fread(data, 1, size, file);
fclose(file);

// update buttons
UpdateButtonsAndText(hWindow, path, FindInArray(data, size, "hl.fix", 6) != -1 || FindInArray(data, size, "sw.fix", 6) != -1, TRUE);
return TRUE;
}
case WM_COMMAND:
Expand Down Expand Up @@ -292,7 +324,7 @@ INT_PTR CALLBACK DialogProc(HWND hWindow, UINT uMsg, WPARAM wParam, LPARAM lPara
fclose(file);

// update buttons
UpdateButtonsAndText(hWindow, path, TRUE, FALSE);
UpdateWindowFromPath(hWindow, path, FALSE);

MessageBox(hWindow, L"Successfully installed.", HLTITLE, MB_OK | MB_ICONINFORMATION);
return TRUE;
Expand All @@ -317,11 +349,43 @@ INT_PTR CALLBACK DialogProc(HWND hWindow, UINT uMsg, WPARAM wParam, LPARAM lPara
DeleteFile((path + L"\\sw.fix").c_str());

// update buttons
UpdateButtonsAndText(hWindow, path, FALSE, FALSE);
UpdateWindowFromPath(hWindow, path, FALSE);

MessageBox(hWindow, L"Successfully uninstalled.", HLTITLE, MB_OK | MB_ICONINFORMATION);
return TRUE;
}
case IDC_BROWSE: {
std::wstring newPath = OpenFolderPicker(hWindow);

if (newPath.empty()) return TRUE;
else path = newPath;

if (UpdateWindowFromPath(hWindow, path, FALSE)) {
// load hl.exe into memory
FILE* file;
_wfopen_s(&file, (path + L"\\hl.exe").c_str(), L"rb");

if (!file) {
MessageBox(hWindow, L"The installer was unable to read the Half-Life launcher.\nTry restarting the installer as an Administrator.", HLTITLE, MB_OK | MB_ICONERROR);
return TRUE;
}

fseek(file, 0, SEEK_END);
long newSize = ftell(file);
rewind(file);
if (size == 0) {
data = (BYTE*)malloc(newSize);
}
else {
data = (BYTE*)realloc(data, newSize);
}
size = newSize;
fread(data, 1, size, file);
fclose(file);
}

return TRUE;
}
}
}
return FALSE;
Expand Down
Binary file modified Installer/Installer.rc
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17 changes: 10 additions & 7 deletions Installer/Resource.h
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Original file line number Diff line number Diff line change
@@ -1,20 +1,23 @@
//{{NO_DEPENDENCIES}}
// Microsoft Visual C++ generated include file.
// Used by Installer.rc
//
#define IDD_DIALOG1 101
#define IDC_DIRTEXT 1000
#define IDC_HLDIR 1000
#define IDINSTALL 1001
#define IDUNINSTALL 1002
#define IDC_BROWSE 1003
#define IDC_HLSTATUS 1004

// Next default values for new objects
//
//
#ifdef APSTUDIO_INVOKED
#ifndef APSTUDIO_READONLY_SYMBOLS

#define _APS_NO_MFC 130
#define _APS_NEXT_RESOURCE_VALUE 129
#define _APS_NEXT_COMMAND_VALUE 32771
#define _APS_NEXT_CONTROL_VALUE 1000
#define _APS_NEXT_SYMED_VALUE 110
#define _APS_NO_MFC 1
#define _APS_NEXT_RESOURCE_VALUE 129
#define _APS_NEXT_COMMAND_VALUE 32771
#define _APS_NEXT_CONTROL_VALUE 1004
#define _APS_NEXT_SYMED_VALUE 110
#endif
#endif

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