On Fri, May 31, 2013 at 9:07 PM, Fabian Müntefering <Cookiezzz97@gmx.de> wrote:

Implemented functions of text format and text layout regarding text
alignment.

Try 3: Used proper enum value to set the enum variables.

+    if(alignment!=DWRITE_TEXT_ALIGNMENT_CENTER && alignment!=DWRITE_TEXT_ALIGNMENT_LEADING &&
+       alignment!=DWRITE_TEXT_ALIGNMENT_JUSTIFIED && alignment!=DWRITE_TEXT_ALIGNMENT_TRAILING)
+        return E_INVALIDARG;
+    This->format.text_align = alignment;

This doesn't look great, you'll need a test that shows it really rejects meaningless values,
and if it does it would be simpler to compare with greatest enum value.