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Font (Windows): reads Control Panel registry directly

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Improves performance
This commit is contained in:
李通洲
2026-03-23 10:50:03 +08:00
parent 76d6e86fe5
commit 92c65aad10
1 changed files with 29 additions and 8 deletions
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src/detection/font/font_windows.c
+29 -8
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@@ -1,5 +1,6 @@
#include "font.h"
#include "common/windows/unicode.h"
#include "common/windows/registry.h"
#include <windows.h>
@@ -23,19 +24,39 @@ static void generateString(FFFontResult* font)
ffStrbufAppendC(&font->display, ']');
}
WINUSERAPI WINBOOL WINAPI ClassicSystemParametersInfoW(UINT uiAction,UINT uiParam,PVOID pvParam,UINT fWinIni);
const char* ffDetectFontImpl(FFFontResult* result)
{
NONCLIENTMETRICSW info = { .cbSize = sizeof(info) };
if(!SystemParametersInfoW(SPI_GETNONCLIENTMETRICS, sizeof(info), &info, 0))
return "SystemParametersInfoW(SPI_GETNONCLIENTMETRICS) failed";
FF_AUTO_CLOSE_FD HANDLE hKey = NULL;
if (!ffRegOpenKeyForRead(HKEY_CURRENT_USER, L"Control Panel\\Desktop\\WindowMetrics", &hKey, NULL))
return "ffRegOpenKeyForRead(HKEY_CURRENT_USER\\Control Panel\\Desktop\\WindowMetrics) failed";
LOGFONTW* fonts[4] = { &info.lfCaptionFont, &info.lfMenuFont, &info.lfMessageFont, &info.lfStatusFont };
FF_LIST_AUTO_DESTROY CaptionFont = ffListCreate(sizeof(uint8_t));
FF_LIST_AUTO_DESTROY MenuFont = ffListCreate(sizeof(uint8_t));
FF_LIST_AUTO_DESTROY MessageFont = ffListCreate(sizeof(uint8_t));
FF_LIST_AUTO_DESTROY StatusFont = ffListCreate(sizeof(uint8_t));
for(uint32_t i = 0; i < ARRAY_SIZE(fonts); ++i)
if (!ffRegReadValues(hKey, 4, (FFRegValueArg[]) {
FF_ARG(CaptionFont, L"CaptionFont"),
FF_ARG(MenuFont, L"MenuFont"),
FF_ARG(MessageFont, L"MessageFont"),
FF_ARG(StatusFont, L"StatusFont"),
}, NULL))
return "ffRegReadValues(HKEY_CURRENT_USER\\Control Panel\\Desktop\\WindowMetrics) failed";
FFlist* fonts[4] = { &CaptionFont, &MenuFont, &MessageFont, &StatusFont };
for (uint32_t i = 0; i < ARRAY_SIZE(fonts); ++i)
{
ffStrbufSetWS(&result->fonts[i], fonts[i]->lfFaceName);
if(fonts[i]->lfHeight < 0)
ffStrbufAppendF(&result->fonts[i], " (%dpt)", (int)-fonts[i]->lfHeight);
if (fonts[i]->length < sizeof(LOGFONTW))
continue;
LOGFONTW* logFont = (LOGFONTW*) fonts[i]->data;
ffStrbufSetWS(&result->fonts[i], logFont->lfFaceName);
if (logFont->lfHeight < 0)
ffStrbufAppendF(&result->fonts[i], " (%dpt)", (int)-logFont->lfHeight);
}
generateString(result);