来自SDK中文档Developer Guides >> Programming Games in C++
要加入gdi.h这个头文件，否则编译时会报错unresolved external symbol TFontSpec
#include <gdi.h>
同时还要修改mmp文件，加入LIBRARY gdi.lib。我用的IDE是Carbide c++ Express，新建的Project没有生成mmp文件，需要修改Project的build配置，把gdi.lib加到Linker的Libraries列表中。
格式化文本用TBuf::Format()
- // Get smallest possible arial font
- _LIT(KMyFontName,"Arial");
- CFont* myFont;
- TFontSpec myFontSpec(KMyFontName, TInt(1));
- CGraphicsDevice* screenDevice = iCoeEnv->ScreenDevice();
- screenDevice->GetNearestFontInTwips(myFont,myFontSpec);
- // Use new font
- gc.UseFont(myFont);
- // Get the width and height of screen
- TInt width = aRect.Width();
- TInt height = aRect.Height();
- // Draw a formated text
- TBuf<32> text;
- _LIT(KMyText, "width=%d, height=%d");
- text.Format(KMyText, width, height);
- gc.DrawText(text, TPoint(10, height) );
- // Discard and release the font
- gc.DiscardFont();
- screenDevice->ReleaseFont(myFont);
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