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Properly scale default skin font according to DPI (#1110)

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Original fix introduced in 528d15 was not correct.
The problem is that `SystemParametersInfo` uses DPI that current session
started with.

We should use `SystemParametersInfoForDpi` (available since Win10 1607)
that returns properly scaled font size.

Fixes #1110
This commit is contained in:
ge0rdi
2023-01-18 09:03:13 +01:00
parent 2d6fb1f3bb
commit 21eea53dfd
1 changed files with 12 additions and 2 deletions
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14
Src/StartMenu/StartMenuDLL/SkinManager.cpp
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@@ -503,6 +503,17 @@ SIZE MenuSkin::ScaleSkinElement( const SIZE &size ) const
return res;
}
_Success_(return != FALSE)
BOOL WINAPI SystemParametersInfoForDpi(_In_ UINT uiAction, _In_ UINT uiParam, _Pre_maybenull_ _Post_valid_ PVOID pvParam, _In_ UINT fWinIni, _In_ UINT dpi)
{
static auto p = static_cast<decltype(&SystemParametersInfoForDpi)>((void*)GetProcAddress(GetModuleHandle(L"user32.dll"), "SystemParametersInfoForDpi"));
if (p)
return p(uiAction, uiParam, pvParam, fWinIni, dpi);
// fall-back for older systems
return SystemParametersInfo(uiAction, uiParam, pvParam, fWinIni);
}
HFONT MenuSkin::LoadSkinFont( const wchar_t *str, const wchar_t *name, int weight, float size, bool bScale ) const
{
DWORD quality=DEFAULT_QUALITY;
@@ -545,9 +556,8 @@ HFONT MenuSkin::LoadSkinFont( const wchar_t *str, const wchar_t *name, int weigh
{
// get the default menu font
NONCLIENTMETRICS metrics={sizeof(metrics)};
SystemParametersInfo(SPI_GETNONCLIENTMETRICS,NULL,&metrics,0);
SystemParametersInfoForDpi(SPI_GETNONCLIENTMETRICS,sizeof(metrics),&metrics,0,Dpi);
metrics.lfMenuFont.lfQuality=(BYTE)quality;
metrics.lfMenuFont.lfHeight=ScaleSkinElement(metrics.lfMenuFont.lfHeight,scale);
return CreateFontIndirect(&metrics.lfMenuFont);
}
size=ScaleSkinElement((int)(size*96),scale)/72.f;