更改字体后 内存泄漏 怎么办

Question

想更改CMFCPropertyGridProperty字体
代码如下CFont* myFont = new CFont;

myFont->CreateFont( 
15,          //   nHeight 
0,              //   nWidth 
0,              //   nEscapement 
0,              //   nOrientation 
FW_NORMAL,   //   nWeight 
FALSE,    //   bItalic 
FALSE,     //   bUnderline 
0,                                                   //   cStrikeOut 
GB2312_CHARSET,                             //   nCharSet 
OUT_DEFAULT_PRECIS,                 //   nOutPrecision 
CLIP_DEFAULT_PRECIS,               //   nClipPrecision 
CLEARTYPE_QUALITY,                       //   nQuality 
DEFAULT_PITCH   |   FF_SWISS,     //   nPitchAndFamily 
_T("宋体")); 
.......
        m_MFCPGCtrl.SetFont(myFont,true);....
myFont->Detach();
  delete myFont;
有new 有delete
字体设置成功 但最后提示有内存泄漏
请问怎么办

Answer 1

myFont->Detach(); ？//Attach呢？

Answer 2

CFont* myFont = new CFont;
    
    myFont->CreateFont( 
        15,                                                         //   nHeight 
        0,                                                         //   nWidth 
        0,                                                         //   nEscapement 
        0,                                                         //   nOrientation 
        FW_NORMAL,                                                  //   nWeight 
        FALSE,                                                   //   bItalic 
        FALSE,                                                    //   bUnderline 
        0,                                                   //   cStrikeOut 
        GB2312_CHARSET,                             //   nCharSet 
        OUT_DEFAULT_PRECIS,                 //   nOutPrecision 
        CLIP_DEFAULT_PRECIS,               //   nClipPrecision 
        CLEARTYPE_QUALITY,                       //   nQuality 
        DEFAULT_PITCH   |   FF_SWISS,     //   nPitchAndFamily 
        _T("宋体")); 
.......
HFONT oldfont = m_MFCPGCtrl.GetFont();
        m_MFCPGCtrl.SetFont(myFont,true);....
m_MFCPGCtrl.SetFont(oldfont,true);
    myFont->DeleteObject();
     delete myFont;

Answer 3

    myFont->Detach();
去掉此函数直接delete

Answer 4

干嘛一定要new CFont呢？你把CFont定义为类的成员变量不就得了

Answer 5

我把CFont myFont；换到类定义里了 可是还是一样……

Answer 6

vld报的泄漏  vs08的ide没报 

Answer 7

HFONT oldfont = m_MFCPGCtrl.GetFont();
  m_MFCPGCtrl.SetFont(myFont,true);....
m_MFCPGCtrl.SetFont(oldfont,true);
  myFont->DeleteObject();
  delete myFont;

Answer 8

你为什么要要指针？ 用对象不行吗？ CFont newFont; newFont.CreateFont( 
        15,                                                         //   nHeight 
        0,                                                         //   nWidth 
        0,                                                         //   nEscapement 
        0,                                                         //   nOrientation 
        FW_NORMAL,                                                  //   nWeight 
        FALSE,                                                   //   bItalic 
        FALSE,                                                    //   bUnderline 
        0,                                                   //   cStrikeOut 
        GB2312_CHARSET,                             //   nCharSet 
        OUT_DEFAULT_PRECIS,                 //   nOutPrecision 
        CLIP_DEFAULT_PRECIS,               //   nClipPrecision 
        CLEARTYPE_QUALITY,                       //   nQuality 
        DEFAULT_PITCH   |   FF_SWISS,     //   nPitchAndFamily 
        _T("宋体"));  CFont *pOldFont = dc.SelectObject(&newFont);
        ...
        dc.TextOut(rect.left, rect.top-50,strtmpText);

Answer 9

啊 崩溃？  单步走走看，是那一句出错了   是不是没有恢复原来的对象就DELETE了？