Fixed launching URLs in About dialog under Windows.

gsmartcontrol/src/hz/launch_url.h

@@ -17,7 +17,14 @@
 #include <string>
 #include <gtk/gtk.h>
 
-#include "scoped_ptr.h"
+#ifdef _WIN32
+	#include <windows.h>  // seems to be needed by shellapi.h
+	#include <shellapi.h>  // ShellExecuteW()
+	#include "scoped_array.h"
+	#include "win32_tools.h"  // hz::win32_utf8_to_utf16
+#else
+	#include "scoped_ptr.h"
+#endif
 
 
 
@@ -31,6 +38,19 @@ namespace hz {
 /// The link is in utf-8 in windows.
 inline std::string launch_url(GtkWindow* window, const std::string& link)
 {
+	// For some reason, gtk_show_uri() crashes on windows, so use our manual implementation.
+#ifdef _WIN32
+	hz::scoped_array<wchar_t> wlink(hz::win32_utf8_to_utf16(link.c_str()));
+	if (!wlink)
+		return "Error while executing a command: The specified URI contains non-UTF-8 characters.";
+
+	HINSTANCE inst = ShellExecuteW(0, L"open", wlink.get(), NULL, NULL, SW_SHOWNORMAL);
+	if (inst > reinterpret_cast<HINSTANCE>(32)) {
+		return std::string();
+	}
+	return "Error while executing a command: Internal error.";
+
+#else
 	hz::scoped_ptr<GError> error(0, g_error_free);
 #if GTK_CHECK_VERSION(3, 22, 0)
 	bool status = gtk_show_uri_on_window(window, link.c_str(), GDK_CURRENT_TIME, &error.get_ref());
@@ -43,6 +63,7 @@ inline std::string launch_url(GtkWindow* window, const std::string& link)
 				+ ((error && error->message) ? (std::string(": ") + error->message) : ".");
 	}
 	return std::string();
+#endif
 }