基于Visual C++2010与windows7 sdk开发Windows7应用(4) 获取windows7字体并设置字体
Windows7新增了很多字体，并改变了字体接口，如何获取windows7字体并设置字体呢，
ClearType是Windows 7字体渲染方式。ClearType是Windows 7字体渲染方式。由于用户80%的时间几乎都要花在阅读上，微软特别看重用户在字体方面的体验，而ClearType得出现正是为了通过特殊的渲染方式给予LCD和CRT显示器以出色的显示效果的。
为了适应不同显示器的特性，Windows 7内置了一项名为ClearType Tuner的功能用于在不同环境下选择合适的ClearType样式以获取最佳的视觉效果。
针对安装字体过多拖慢系统速度的问题，Windows 7还能按照条件将特定字体隐藏起来，查看起来就方便多了，而且不会白白占用更多内存。Windows 7会自动按照用户语言设置隐藏字体，但也允许用户手动设置。
Windows 7终于去掉了安装新字体对话框，并在其他方面做出了很多改进。
Windows 7预览版还增加了一个名为“Gabriola”的新字体，是一种很漂亮的Script字体，也支持大量先进的OpenType功能。
最后还有“DirectWrite API”，能更好地支持文字渲染，包括非像素边缘字体和Y轴反锯齿等。
下列代码在windows7 中VS2010调试通过，详情键代码注释
#include <windows.h> #pragma comment(linker,"/manifestdependency:/"type='win32' name='Microsoft.Windows.Common-Controls' version='7.0.0.0' processorArchitecture='*' publicKeyToken='6595b64144ccf1df' language='*'/"") #define ID_BUTTON 100 #define ID_CHECKBOX 200 #define ID_LABEL 300 HINSTANCE g_hInst; HWND g_hwndApp; // 创建窗口 HWND g_hwndLabel; // 字体显示控件 // 主程序初始化 LRESULT CALLBACK WndProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam); void InitDefaultLF(LOGFONT *lf); int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE, PSTR pszCmdLine, int iCmdShow) { g_hInst = hInstance; // 保存窗口句柄 MSG msg; WCHAR const szWindowName[] = L"选择字体Sample"; WCHAR const szWindowClass[] = L"选择字体SampleWClass"; WNDCLASS wc = {}; wc.style = CS_HREDRAW | CS_VREDRAW; wc.lpfnWndProc = WndProc; wc.hInstance = hInstance; wc.hIcon = LoadIcon(NULL, IDI_APPLICATION); wc.hCursor = LoadCursor(NULL, IDC_ARROW); wc.hbrBackground = (HBRUSH)GetStockObject(WHITE_BRUSH); wc.lpszClassName = szWindowClass; RegisterClass(&wc); g_hwndApp = CreateWindow(szWindowClass, szWindowName, WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, CW_USEDEFAULT, 490, 120, NULL, NULL, hInstance, NULL); if (g_hwndApp) { ShowWindow(g_hwndApp, iCmdShow); UpdateWindow(g_hwndApp); while(GetMessage(&msg, NULL, 0, 0)) { TranslateMessage(&msg); DispatchMessage(&msg); } } return (int)msg.wParam; } LRESULT CALLBACK WndProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam) { static LOGFONT lf = {}; switch(uMsg) { case WM_CREATE: { // 创建选择字体按钮 CreateWindow(L"button", L"选择字体", BS_PUSHBUTTON | WS_CHILD | WS_VISIBLE, 20, 20, 100, 20, hwnd, (HMENU)ID_BUTTON, g_hInst, NULL); // 创建check box CreateWindow(L"button", L"显示所有字体?", BS_AUTOCHECKBOX | WS_CHILD | WS_VISIBLE, 20, 45, 120, 20, hwnd, (HMENU)ID_CHECKBOX, g_hInst, NULL); // 创建文本显示 g_hwndLabel = CreateWindow(L"static", L"CSDN专家尹成的杰作.", SS_CENTER | WS_CHILD | WS_VISIBLE, 150, 10, 300, 40, hwnd, (HMENU)ID_LABEL, g_hInst, NULL); InitDefaultLF(&lf); break; } case WM_COMMAND: { if (LOWORD(wParam) == ID_BUTTON) { CHOOSEFONT cf = { sizeof(cf) }; cf.hwndOwner = hwnd; cf.lpLogFont = &lf; if (BST_CHECKED == IsDlgButtonChecked(hwnd, ID_CHECKBOX)) { // 显示所有字体 cf.Flags |= CF_INACTIVEFONTS; } if (ChooseFont(&cf) == TRUE) { HFONT hfont = CreateFontIndirect(&lf); if (hfont) { // 删除旧字体应用 HFONT hfontOld = (HFONT)SendMessage(g_hwndLabel, WM_GETFONT, 0, 0); if (hfontOld) { DeleteObject(hfontOld); } SendMessage(g_hwndLabel, WM_SETFONT, (WPARAM)hfont, MAKELPARAM(TRUE, 0)); } } } break; } case WM_DESTROY: { // 清理资源 HFONT hfontOld = (HFONT)SendMessage(g_hwndLabel, WM_GETFONT, 0, 0); if (hfontOld) { DeleteObject(hfontOld); } PostQuitMessage(0); return 0; } } return DefWindowProc(hwnd, uMsg, wParam, lParam); } void InitDefaultLF(LOGFONT *plf) { HDC hdc = GetDC(NULL); ZeroMemory(plf, sizeof(*plf)); plf->lfCharSet = (BYTE) GetTextCharset(hdc); plf->lfOutPrecision = OUT_DEFAULT_PRECIS; plf->lfClipPrecision = CLIP_DEFAULT_PRECIS; plf->lfQuality = DEFAULT_QUALITY; plf->lfPitchAndFamily = DEFAULT_PITCH; plf->lfWeight = FW_NORMAL; plf->lfHeight = -MulDiv(10, GetDeviceCaps(hdc, LOGPIXELSY), 2); ReleaseDC(NULL, hdc); }