user: fix DrawTextExA/W on empty strings.

[Rein Klazes]

On Wed, 25 Jan 2006 07:49:57 -0800 (PST), you wrote:

>Hi Rein,
>
>-    if (!str) return 0;
>+    if (!str || count == 0) return 0;
>     if (count == -1) count = strlenW(str);
>-    if (count == 0) return 0;
>+    if (count == 0) {
>+        if( flags & DT_CALCRECT) {
>+            rect->right = rect->left;
>+            rect->bottom = rect->top;
>+        }
>+        return 0;
>+    }
>
>This block will never be reached because of the if (!str || count == 0)
>test above.

Wrong, look again.

It can be coded a little bit more efficiently though. I will make a
different patch.

Rein.


Rein.