implement file browser dialog

engine/wacom.cpp

@@ -118,8 +118,14 @@ bool WacomTablet::init(HWND hWnd)
     if (LoadWintab())
     {
         /* check if WinTab available. */
-        if (gpWTInfoA(0, 0, NULL))
+        gpWTInfoA(0, 0, 0);
+        if (UINT ret = gpWTInfoA(WTI_DEFSYSCTX, 0, &glogContext))
         {
+#ifdef _DEBUG
+            // this should just avoid errors in debug mode
+            if (ret != sizeof(LOGCONTEXTA))
+                return false;
+#endif // _DEBUG
             g_hCtx = TabletInit(hWnd);
             if (!g_hCtx)
             {
@@ -147,6 +153,7 @@ bool WacomTablet::init(HWND hWnd)
 
 void WacomTablet::terminate()
 {
+    gpWTClose(g_hCtx);
     UnloadWintab();
 }