user[2/5]: implement A version of SPI_GETDESKWALLPAPER (try again)

[Andrew Ziem]

Previously, SPI_GETDESKWALLPAPER was handled by default: in the switch,
so the function (an A- function) would return a W string.

This patch replaces a patch sent yesterday.  Thanks to Dmitry Timoshkov 
for catching an unhandled return code.

---
 dlls/user/sysparams.c |   11 +++++++++++
 1 files changed, 11 insertions(+), 0 deletions(-)

diff --git a/dlls/user/sysparams.c b/dlls/user/sysparams.c
index 5fed316..ce9bac9 100644
--- a/dlls/user/sysparams.c
+++ b/dlls/user/sysparams.c
@@ -2496,6 +2496,17 @@ BOOL WINAPI SystemParametersInfoA( UINT 
 	break;
     }
 
+    case SPI_GETDESKWALLPAPER:                  /*     115 */
+    {
+        WCHAR buffer[MAX_PATH];
+        ret = SystemParametersInfoW( SPI_GETDESKWALLPAPER, uiParam, buffer, fuWinIni );
+        if (!ret)
+           ret = FALSE;
+        else if (!WideCharToMultiByte(CP_ACP, 0, buffer, -1, pvParam, uiParam, NULL, NULL))
+           ret = FALSE;
+        break;
+    }
+
     default:
         ret = SystemParametersInfoW( uiAction, uiParam, pvParam, fuWinIni );
         break;
-- 
1.4.0