uninstaller: Add help switch and usage information (v2)

[Hugh McMaster]

---
 programs/uninstaller/main.c         | 10 ++++++++--
 programs/uninstaller/resource.h     |  2 ++
 programs/uninstaller/uninstaller.rc | 10 ++++++++++
 3 files changed, 20 insertions(+), 2 deletions(-)

diff --git a/programs/uninstaller/main.c b/programs/uninstaller/main.c
index a9aae73..6909e0f 100644
--- a/programs/uninstaller/main.c
+++ b/programs/uninstaller/main.c
@@ -161,6 +161,7 @@ static void RemoveSpecificProgram(WCHAR *nameW)
 int wmain(int argc, WCHAR *argv[])
 {
     LPCWSTR token = NULL;
+    static const WCHAR helpW[] = { '-','-','h','e','l','p',0 };
     static const WCHAR listW[] = { '-','-','l','i','s','t',0 };
     static const WCHAR removeW[] = { '-','-','r','e','m','o','v','e',0 };
     int i = 1;
@@ -169,8 +170,13 @@ int wmain(int argc, WCHAR *argv[])
     {
         token = argv[i++];
         
-        /* Handle requests just to list the applications */
-        if( !lstrcmpW( token, listW ) )
+        if( !lstrcmpW( token, helpW ) )
+        {
+            output_message(STRING_HEADER);
+            output_message(STRING_USAGE);
+            return 0;
+        }
+        else if( !lstrcmpW( token, listW ) )
         {
             ListUninstallPrograms();
             return 0;
diff --git a/programs/uninstaller/resource.h b/programs/uninstaller/resource.h
index f617b2a..72ba160 100644
--- a/programs/uninstaller/resource.h
+++ b/programs/uninstaller/resource.h
@@ -26,5 +26,7 @@
 #define STRING_NO_APP_MATCH             2000
 #define STRING_PARAMETER_REQUIRED       2001
 #define STRING_INVALID_OPTION           2002
+#define STRING_HEADER                   2003
+#define STRING_USAGE                    2004
 
 #define MAX_STRING_LEN                  255
diff --git a/programs/uninstaller/uninstaller.rc b/programs/uninstaller/uninstaller.rc
index e408b91..f742996 100644
--- a/programs/uninstaller/uninstaller.rc
+++ b/programs/uninstaller/uninstaller.rc
@@ -30,4 +30,14 @@ STRINGTABLE {
      STRING_NO_APP_MATCH, "uninstaller: The application with GUID '%1' was not found\n"
      STRING_PARAMETER_REQUIRED, "uninstaller: The option '--remove' must be followed by an application GUID\n"
      STRING_INVALID_OPTION, "uninstaller: Invalid option [%1]\n"
+     STRING_HEADER, "Wine Application Uninstaller\n\n\
+\Uninstalls applications from the current Wine prefix.\n\n"
+     STRING_USAGE, "Usage:\n\
+\  uninstaller [options]\n\n\
+\Options:\n\
+\  --help\t    Display this information.\n\
+\  --list\t    List all applications installed in this Wine prefix.\n\
+\  --remove {GUID}   Uninstall the specified application.\n\
+\t\t    Use '--list' to determine the application GUID.\n\
+\  [no option]       Launch the graphical version of this program.\n\n"
 }
-- 
1.9.1