gdiplus: Retrieve LOGFONT from a GpFont using GdipGetLogFontW instead of accessing it directly.

dlls/gdiplus/graphics.c

@@ -2136,15 +2136,13 @@ void get_font_hfont(GpGraphics *graphics, GDIPCONST GpFont *font, HFONT *hfont)
     rel_height = sqrt((pt[2].Y-pt[0].Y)*(pt[2].Y-pt[0].Y)+
                       (pt[2].X-pt[0].X)*(pt[2].X-pt[0].X));
 
-    lfw = font->lfw;
-    lfw.lfHeight = roundr(-font->pixel_size * rel_height);
+    GdipGetLogFontW((GpFont *)font, graphics, &lfw);
+    lfw.lfHeight = roundr(lfw.lfHeight * rel_height);
     unscaled_font = CreateFontIndirectW(&lfw);
 
     SelectObject(hdc, unscaled_font);
     GetTextMetricsW(hdc, &textmet);
 
-    lfw = font->lfw;
-    lfw.lfHeight = roundr(-font->pixel_size * rel_height);
     lfw.lfWidth = roundr(textmet.tmAveCharWidth * rel_width / rel_height);
     lfw.lfEscapement = lfw.lfOrientation = roundr((angle / M_PI) * 1800.0);
 
@@ -4919,6 +4917,7 @@ GpStatus WINGDIPAPI GdipMeasureCharacterRanges(GpGraphics* graphics,
 {
     GpStatus stat;
     int i;
+    LOGFONTW lfw;
     HFONT oldfont;
     struct measure_ranges_args args;
     HDC hdc, temp_hdc=NULL;
@@ -4932,6 +4931,9 @@ GpStatus WINGDIPAPI GdipMeasureCharacterRanges(GpGraphics* graphics,
     if (regionCount < stringFormat->range_count)
         return InvalidParameter;
 
+    stat = GdipGetLogFontW((GpFont *)font, graphics, &lfw);
+    if (stat != Ok) return stat;
+
     if(!graphics->hdc)
     {
         hdc = temp_hdc = CreateCompatibleDC(0);
@@ -4943,7 +4945,7 @@ GpStatus WINGDIPAPI GdipMeasureCharacterRanges(GpGraphics* graphics,
     if (stringFormat->attr)
         TRACE("may be ignoring some format flags: attr %x\n", stringFormat->attr);
 
-    oldfont = SelectObject(hdc, CreateFontIndirectW(&font->lfw));
+    oldfont = SelectObject(hdc, CreateFontIndirectW(&lfw));
 
     for (i=0; i<stringFormat->range_count; i++)
     {

dlls/gdiplus/graphicspath.c

@@ -942,6 +942,7 @@ GpStatus WINGDIPAPI GdipAddPathString(GpPath* path, GDIPCONST WCHAR* string, INT
 {
     GpFont *font;
     GpStatus status;
+    LOGFONTW lfw;
     HANDLE hfont;
     HDC dc;
     GpPath *backup;
@@ -956,7 +957,9 @@ GpStatus WINGDIPAPI GdipAddPathString(GpPath* path, GDIPCONST WCHAR* string, INT
     if (status != Ok)
         return status;
 
-    hfont = CreateFontIndirectW(&font->lfw);
+    status = GdipGetLogFontW((GpFont *)font, NULL, &lfw);
+    if (status != Ok) return status;
+    hfont = CreateFontIndirectW(&lfw);
     if (!hfont)
     {
         WARN("Failed to create font\n");