无论CreateFont(...)里的参数怎么改，字体总是放不大，怎么回事？●

Question

CFont m_font ;
m_font.CreateFont(100,   // nHeight
                      60,                       // nWidth
                      0,                        // nEscapement
                      0,                        // nOrientation
                      FW_EXTRABOLD,             // nWeight
                      FALSE,                    // bItalic
                      FALSE,                    // bUnderline
                      0,                        // cStrikeOut
                      ANSI_CHARSET,             // nCharSet
                      OUT_DEFAULT_PRECIS,       // nOutPrecision
                      CLIP_DEFAULT_PRECIS,      // nClipPrecision
                      DEFAULT_QUALITY,          // nQuality
                      DEFAULT_PITCH | FF_SWISS, // nPitchAndFamily
    "Arial");                 // lpszFacename
GetDlgItem(IDC_STATIC)->SetFont( &m_font ) ;无论nHeight nWidth设多大，字体大小总是不变大，怎么回事？
於是我將
CFont m_font ;
将以上一行定义放到类定义里面去，作为类的成员变量。就可以了。我想知道爲什麽會這樣？有人說函数执行完后m_font立刻析購了。請問執行setfont(&m_font)怎麽會析購呢？

Answer 1

这个我遇到过,你用的是临时变量,只设置一次,在以后使用时就不存在了,用指针把,窗体在刷新自己时要字体的,
CFont* m_font = new CFont() ;
m_font->CreateFont(100,   // nHeight
                      60,                       // nWidth
                      0,                        // nEscapement
                      0,                        // nOrientation
                      FW_EXTRABOLD,             // nWeight
                      FALSE,                    // bItalic
                      FALSE,                    // bUnderline
                      0,                        // cStrikeOut
                      ANSI_CHARSET,             // nCharSet
                      OUT_DEFAULT_PRECIS,       // nOutPrecision
                      CLIP_DEFAULT_PRECIS,      // nClipPrecision
                      DEFAULT_QUALITY,          // nQuality
                      DEFAULT_PITCH | FF_SWISS, // nPitchAndFamily
    "Arial");                 // lpszFacename
GetDlgItem(IDC_STATIC)->SetFont( m_font ) ;

Answer 2

给窗口设置自己创建的字体，要求这个字体在这个窗口存活期间必须是一直存在的。你用临时变量，SetFont后这个字体就不存在了。

Answer 3

HFONT m_Font;
 m_Font = CreateFont(
   11,// nHeight
   0,// nWidth
   0,// nEscapement
   0,// nOrientation
   FW_NORMAL,// nWeight
   FALSE,// bItalic
   FALSE,// bUnderline
   FALSE,// cStrikeOut
   ANSI_CHARSET,// nCharSet
   OUT_DEFAULT_PRECIS,// nOutPrecision
   CLIP_DEFAULT_PRECIS,// nClipPrecision
   ANTIALIASED_QUALITY,// nQuality
   DEFAULT_PITCH | FF_SWISS,// nPitchAndFamily
   _T("Courier"));// lpszFacename::SendMessage(::GetDlgItem(m_hWnd,IDC_VIEWEDIT),WM_SETFONT,(WPARAM)m_Font,MAKELPARAM(TRUE,   0));