Fix for DPI of win32 fonts sizes when specified in points.

modules/juce_graphics/native/juce_win32_DirectWriteTypeface.cpp

@@ -178,7 +178,8 @@ public:
         unitsToHeightScaleFactor = designUnitsPerEm / totalSize;
 
         HDC tempDC = GetDC (0);
-        heightToPointsFactor = (72.0f / GetDeviceCaps (tempDC, LOGPIXELSY)) * unitsToHeightScaleFactor;
+        float dpi = (GetDeviceCaps (tempDC, LOGPIXELSX) + GetDeviceCaps (tempDC, LOGPIXELSY)) / 2.0f;
+        heightToPointsFactor = (dpi / GetDeviceCaps (tempDC, LOGPIXELSY)) * unitsToHeightScaleFactor;
         ReleaseDC (0, tempDC);
 
         const float pathAscent  = (1024.0f * dwFontMetrics.ascent)  / designUnitsPerEm;

modules/juce_graphics/native/juce_win32_Fonts.cpp

@@ -533,7 +533,8 @@ private:
 
         if (GetTextMetrics (dc, &tm))
         {
-            heightToPointsFactor = (72.0f / GetDeviceCaps (dc, LOGPIXELSY)) * heightInPoints / (float) tm.tmHeight;
+            float dpi = (GetDeviceCaps (dc, LOGPIXELSX) + GetDeviceCaps (dc, LOGPIXELSY)) / 2.0f;
+            heightToPointsFactor = (dpi / GetDeviceCaps (dc, LOGPIXELSY)) * heightInPoints / (float) tm.tmHeight;
             ascent = tm.tmAscent / (float) tm.tmHeight;
             defaultGlyph = getGlyphForChar (dc, tm.tmDefaultChar);
             createKerningPairs (dc, (float) tm.tmHeight);