獲取系統字體

Question

我想知道是否有方法獲取紅色框內的下列窗口字體的字體。

有沒有辦法通過一個Win32 API函數來獲得這個字體作爲HFONT？

由於提前，

Philinator

Answer 1

這是用的uxtheme.dll，AeroWizard類，部分HeaderArea完成。狀態0或狀態1（NoMargins）都可以工作。這裏有一個示例，都使用DrawThemeText()並手動。 （請注意，是一個演示程序，它沒有錯誤檢查。）

// 20 june 2016 
#define UNICODE 
#define _UNICODE 
#define STRICT 
#define STRICT_TYPED_ITEMIDS 
#define WINVER   0x0600 
#define _WIN32_WINNT  0x0600 
#define _WIN32_WINDOWS 0x0600 
#define _WIN32_IE   0x0700 
#define NTDDI_VERSION  0x06000000 
#include <windows.h> 
#include <uxtheme.h> 
#include <vsstyle.h> 
#include <vssym32.h> 

HWND mainwin; 
HWND edit; 

void redraw(void) 
{ 
    HDC dc; 
    PAINTSTRUCT ps; 
    WCHAR text[1024]; 
    HTHEME theme; 
    LOGFONTW lf; 
    HFONT font, oldfont; 
    COLORREF color; 
    SIZE extent; 
    RECT r; 

    dc = BeginPaint(mainwin, &ps); 

    theme = OpenThemeData(mainwin, VSCLASS_AEROWIZARD); 
    GetThemeFont(theme, dc, AW_HEADERAREA, 0, TMT_FONT, &lf); 
    font = CreateFontIndirectW(&lf); 
    GetThemeColor(theme, AW_HEADERAREA, 0, TMT_TEXTCOLOR, &color); 

    GetWindowTextW(edit, text, 1024); 
    GetThemeTextExtent(theme, dc, AW_HEADERAREA, 0, 
     text, -1, 0, NULL, &r); 
    extent.cx = r.right - r.left; 
    extent.cy = r.bottom - r.top; 

    SetWindowPos(edit, NULL, 
     10, 10, 500, 20, 
     SWP_NOOWNERZORDER | SWP_NOZORDER); 

    r.left = 10; 
    r.top = 40; 
    r.right = 10 + extent.cx; 
    r.bottom = r.top + extent.cy; 
    DrawThemeText(theme, dc, AW_HEADERAREA, 0, 
     text, -1, 0, 0, &r); 

    oldfont = (HFONT) SelectObject(dc, font); 
    color = SetTextColor(dc, color); 
    r.top = r.bottom + 10; 
    r.bottom = r.top + extent.cy; 
    DrawTextW(dc, text, -1, &r, 0); 
    SetTextColor(dc, color); 
    SelectObject(dc, oldfont); 
    DeleteObject(font); 

    CloseThemeData(theme); 
    EndPaint(mainwin, &ps); 
} 

LRESULT CALLBACK wndproc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam) 
{ 
    switch (uMsg) { 
    case WM_PAINT: 
     redraw(); 
     return 0; 
    case WM_COMMAND: 
     InvalidateRect(hwnd, NULL, TRUE); 
     break; 
    case WM_CLOSE: 
     PostQuitMessage(0); 
     break; 
    } 
    return DefWindowProcW(hwnd, uMsg, wParam, lParam); 
} 

int main(void) 
{ 
    WNDCLASSW wc; 
    MSG msg; 

    ZeroMemory(&wc, sizeof (WNDCLASSW)); 
    wc.lpszClassName = L"mainwin"; 
    wc.lpfnWndProc = wndproc; 
    wc.hbrBackground = (HBRUSH) (COLOR_BTNFACE + 1); 
    RegisterClassW(&wc); 

    mainwin = CreateWindowExW(0, 
     L"mainwin", L"Main Window", 
     WS_OVERLAPPEDWINDOW, 
     CW_USEDEFAULT, CW_USEDEFAULT, 
     640, 200, 
     NULL, NULL, NULL, NULL); 

    edit = CreateWindowExW(WS_EX_CLIENTEDGE, 
     L"EDIT", L"Top is DrawThemeText(), bottom is manual", 
     WS_CHILD | WS_VISIBLE, 
     10, 10, 100, 100, 
     mainwin, (HMENU) 100, NULL, NULL); 

    ShowWindow(mainwin, SW_SHOWDEFAULT); 
    UpdateWindow(mainwin); 

    while (GetMessageW(&msg, NULL, 0, 0)) { 
     TranslateMessage(&msg); 
     DispatchMessageW(&msg); 
    } 
    return 0; 
}