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uxtheme: Use OpenThemeDataForDpi() to create a theme handle not associated to a window.
If a window is not passed to OpenThemeData(), OpenThemeData() assumes the DPI is 96 according to tests. And GetThemePartSize() should select theme parts according to the DPI stored in theme handles rather than using GDI device contexts. Thus, OpenThemeDataForDpi() should be used in place of OpenThemeData() when DPI is not 96 and theme handles shouldn't be associated with a window. Signed-off-by: Zhiyi Zhang <zzhang@codeweavers.com> Signed-off-by: Alexandre Julliard <julliard@winehq.org>
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@ -41,7 +41,11 @@ void WINAPI UXTHEME_ScrollBarDraw(HWND hwnd, HDC dc, INT bar, enum SCROLL_HITTES
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HTHEME theme;
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DWORD style;
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theme = bar == SB_CTL ? GetWindowTheme(hwnd) : OpenThemeData(NULL, WC_SCROLLBARW);
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if (bar == SB_CTL)
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theme = GetWindowTheme(hwnd);
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else
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theme = OpenThemeDataForDpi(NULL, WC_SCROLLBARW, GetDpiForWindow(hwnd));
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if (!theme)
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{
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user_api.pScrollBarDraw(hwnd, dc, bar, hit_test, tracking_info, draw_arrows, draw_interior,
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