Don't check dll-s if "SetDefaultDllDirectories" is available.

Telegram/SourceFiles/_other/updater_win.cpp

@@ -7,69 +7,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 */
 #include "updater.h"
 
-using Handle = HINSTANCE;
-
-Handle SafeLoadLibrary(const wchar_t *name, bool required = false) {
-	static const auto SystemPath = [] {
-		WCHAR buffer[MAX_PATH + 1] = { 0 };
-		return GetSystemDirectory(buffer, MAX_PATH)
-			? std::wstring(buffer)
-			: std::wstring();
-	}();
-	static const auto WindowsPath = [] {
-		WCHAR buffer[MAX_PATH + 1] = { 0 };
-		return GetWindowsDirectory(buffer, MAX_PATH)
-			? std::wstring(buffer)
-			: std::wstring();
-	}();
-	const auto tryPath = [&](const std::wstring &path) {
-		if (!path.empty()) {
-			const auto full = path + L'\\' + name;
-			if (const auto result = Handle(LoadLibrary(full.c_str()))) {
-				return result;
-			}
-		}
-		return Handle();
-	};
-	if (const auto result1 = tryPath(SystemPath)) {
-		return result1;
-	} else if (const auto result2 = tryPath(WindowsPath)) {
-		return result2;
-	} else if (required) {
-		const auto text = L"Could not load required DLL '"
-			+ std::wstring(name)
-			+ L"'!";
-		MessageBox(nullptr, text.c_str(), L"Fatal Error", MB_ICONERROR);
-	}
-	return nullptr;
-}
-
-[[nodiscard]] bool Init() {
-	// Remove the current directory from the DLL search order.
-	SetDllDirectory(L"");
-
-	const auto required = {
-		L"user32.dll",
-		L"advapi32.dll",
-		L"shell32.dll",
-		L"ole32.dll",
-		L"shlwapi.dll",
-		L"propsys.dll",
-	};
-	const auto optional = {
-		L"profapi.dll",
-		L"cryptbase.dll",
-	};
-	for (const auto lib : required) {
-		if (!SafeLoadLibrary(lib, true)) {
-			return false;
-		}
-	}
-	for (const auto lib : optional) {
-		SafeLoadLibrary(lib);
-	}
-	return true;
-}
+#include "base/platform/win/base_windows_safe_library.h"
 
 bool _debug = false;
 
@@ -393,9 +331,7 @@ void updateRegistry() {
 }
 
 int APIENTRY wWinMain(HINSTANCE instance, HINSTANCE prevInstance, LPWSTR cmdParamarg, int cmdShow) {
-	if (!Init()) {
-		return -1;
-	}
+	base::Platform::InitDynamicLibraries();
 
 	openLog();