关闭窗口的时候出错

void CMyProjectDlg::OnOpenfile()
{
// TODO: Add your control notification handler code here
OPENFILENAME of;
char filename[100]="";
char szFilter[100]="所有文件(*.*)\0*.*\0图象源文件(*.jpg)\0*.jpg\0\0";
char szCustomFilter[]="*.jpg\0";

of.Flags=OFN_PATHMUSTEXIST|OFN_FILEMUSTEXIST;
of.hInstance=NULL;
of.hwndOwner=this->m_hWnd;
of.lCustData=0;
of.lpfnHook=NULL;
of.lStructSize=sizeof(of);

of.lpstrCustomFilter=NULL;
of.nMaxCustFilter=0;

of.lpstrDefExt=NULL;
of.lpstrFile=NULL;
of.nMaxFile=0;

of.lpstrFileTitle=filename;
of.nMaxFileTitle=sizeof(filename);

of.lpstrFilter=szFilter;
of.nFilterIndex=1;
of.lpstrInitialDir="d:\\qcif";

of.lpstrTitle=NULL;
of.lpTemplateName=NULL;

of.nFileExtension=0;
of.nFileOffset=0; unsigned char *fJpegBuf;
int i=0;
char bfilename[100]="c:\\";
FILE *fJpeg=NULL;
static HFILE file; if(GetOpenFileName(&of))
{
static OFSTRUCT ofs;
ofs.cBytes=sizeof(ofs); file=OpenFile(filename,&ofs,OF_READ);
int nBytetoRead=GetFileSize((HANDLE)file,NULL);
unsigned long nByteRead;
fJpegBuf=(unsigned char *) malloc(nBytetoRead);
ReadFile((HANDLE)file,fJpegBuf,nBytetoRead,&nByteRead,NULL); i=0;
while(filename[i]!='.') { bfilename[i+3]=filename[i]; i++; }
bfilename[i+3]='\0';
strcat(bfilename,".bmp");
// if(!this->m_clrJpegDec.ShowJpegToScreen(fJpegBuf,bfilename))
// {}
m_clrJpegDec.ShowJpegToScreen(fJpegBuf,bfilename);
//MessageBox("解码出错!");
//else MessageBox("解码成功，BMP文件保存到C盘根目录");
m_palDIB=NULL;
DrawBMP(IDC_STATIC,m_clrJpegDec.hDIB);
}
else MessageBox("文件出错!");

}void CMyProjectDlg::DrawBMP(int nID, HDIB ndib)
{ BeginWaitCursor(); // 获取DIB
HDIB hDIB = ndib;

// 判断DIB是否为空
if (hDIB != NULL)
{
//LPSTR lpDIB = (LPSTR) ::GlobalLock((HGLOBAL) hDIB);

// 获取DIB宽度
int cxDIB = (int) m_clrJpegDec.ImgWidth;

// 获取DIB高度
int cyDIB = (int) m_clrJpegDec.ImgHeight;

// ::GlobalUnlock((HGLOBAL) hDIB);

CRect rcDIB;
rcDIB.top = rcDIB.left = 0;
rcDIB.right = cxDIB;
rcDIB.bottom = cyDIB;

CWnd* pWnd=GetDlgItem(nID);
CDC* pDC=pWnd->GetDC();
RECT rect;
pWnd->GetClientRect(&rect);//得到控件矩形区域
CRect rcDest(rect);
// 输出DIB
PaintDIB(pDC->m_hDC, &rcDest, hDIB,&rcDIB,m_palDIB);

}
// 恢复正常光标
EndWaitCursor(); }
BOOL CClrJpegDecode::ShowJpegToScreen(unsigned char *hJpegBuf, char *filename)
{
DWORD        ImgSize;
DWORD              BufSize;
int    funcret;
lpImgData=NULL;
FILE *hfbmp;
LPSTR pDIB;

///////////////////////
//NO DATA! Return FALSE if(hJpegBuf==NULL)
return FALSE;
lpJpegBuf=hJpegBuf; InitTable(); if((funcret=InitTag())!=FUNC_OK){
delete hJpegBuf;
return FALSE;
} //create new bitmapfileheader and bitmapinfoheader
//------------------------------------------------ memset((char *)&bf,0,sizeof(BITMAPFILEHEADER));
memset((char *)&bi,0,sizeof(BITMAPINFOHEADER)); bi.biSize=(DWORD)sizeof(BITMAPINFOHEADER);
bi.biWidth=(LONG)(ImgWidth);
bi.biHeight=(LONG)(ImgHeight);
bi.biPlanes=1;
bi.biBitCount=24;
bi.biClrUsed=0;
bi.biClrImportant=0;
bi.biCompression=BI_RGB;
NumColors=0;
LineBytes=(DWORD)WIDTHBYTES(bi.biWidth*bi.biBitCount); //=W(288*24)=
ImgSize=(DWORD)LineBytes*bi.biHeight; bf.bfType=0x4d42;
bf.bfSize=sizeof(BITMAPFILEHEADER)+sizeof(BITMAPINFOHEADER)+NumColors*sizeof(RGBQUAD)+ImgSize;
bf.bfOffBits=(DWORD)(NumColors*sizeof(RGBQUAD)+sizeof(BITMAPFILEHEADER)+sizeof(BITMAPINFOHEADER));
//BufSize=bf.bfSize-sizeof(BITMAPFILEHEADER);
BufSize=ImgSize; //create BitmapHead End
//--------------------- if((hImgData=new unsigned char[BufSize])==NULL){
delete hImgData;
return FALSE;
} lpImgData=hImgData;
//memcpy(lpImgData,(char *)&bi,sizeof(BITMAPINFOHEADER));
lpPtr=(char *)lpImgData; if((SampRate_Y_H==0)||(SampRate_Y_V==0)){
delete hJpegBuf;
hJpegBuf=NULL;
delete hImgData;
hImgData=NULL;
return FALSE ;
} funcret=Decode(); if(funcret==FUNC_OK){ /////
/////
/////////NEED SHOW CODE;
////
////
/*
hBitmap=CreateDIBitmap(hDc, (LPBITMAPINFOHEADER)lpImgData, (LONG)CBM_INIT,
(LPSTR)lpImgData+sizeof(BITMAPINFOHEADER) +NumColors*sizeof(RGBQUAD),
    (LPBITMAPINFO)lpImgData, DIB_RGB_COLORS);
        */ // hfbmp=fopen(filename,"w+b");
// fwrite((LPSTR)&bf,1,sizeof(BITMAPFILEHEADER),hfbmp);
// fwrite((LPSTR)&bi,1,sizeof(BITMAPINFOHEADER),hfbmp);
// fwrite((LPSTR)lpImgData,1,BufSize,hfbmp);
// fclose(hfbmp);
hDIB = (HDIB) ::GlobalAlloc(GMEM_MOVEABLE | GMEM_ZEROINIT, bf.bfSize);
pDIB = (LPSTR) ::GlobalLock((HGLOBAL) hDIB);
memcpy(pDIB,lpImgData,ImgSize);
::GlobalUnlock((HGLOBAL) hDIB);// ReleaseDC(hWnd,hDc);
GlobalUnlock(hJpegBuf);
GlobalFree(hJpegBuf);
GlobalUnlock(hImgData);
GlobalFree(hImgData);
return TRUE;
}
else{
delete hJpegBuf;
hJpegBuf=NULL;
delete hImgData;
hImgData=NULL;
return FALSE;
}
}void CClrJpegDecode::StoreBuffer()
{ short i,j,k1,k2,k3;
unsigned char  *lpbmp;
unsigned char R,G,B;
int y,u,v,rr,gg,bb; for(i=0;i<16/*SampRate_Y_V*8*/;i++){
k1=i<<4;//8*SampRate_Y_H;
k2=(i>>1)<<4;//8*SampRate_Y_H;
if((sizei+i)<ImgHeight){
lpbmp=((unsigned char *)lpPtr+(DWORD)(ImgHeight-sizei-i-1)*LineBytes+sizej*3);
for(j=0;j<16/*SampRate_Y_H*8*/;j++){
if((sizej+j)<ImgWidth){
y=Y[k1+j];
k3=k2+(j>>1); // j/2;
u=U[k3];
v=V[k3];
rr=((y<<8)+18*u+367*v)>>8;
gg=((y<<8)-159*u-220*v)>>8;
bb=((y<<8)+411*u-29*v)>>8;
R=(unsigned char)rr;
G=(unsigned char)gg;
B=(unsigned char)bb;
if (rr&0xffffff00) if (rr>255) R=255; else if (rr<0) R=0;
if (gg&0xffffff00) if (gg>255) G=255; else if (gg<0) G=0;
if (bb&0xffffff00) if (bb>255) B=255; else if (bb<0) B=0;
*lpbmp++=B;
*lpbmp++=G;
*lpbmp++=R;
}
else  break;
}
}
else break;
}
}
void CMyProjectDlg::DrawBMP(int nID, HDIB ndib)
{ BeginWaitCursor(); // 获取DIB
HDIB hDIB = ndib;

// 判断DIB是否为空
if (hDIB != NULL)
{
//LPSTR lpDIB = (LPSTR) ::GlobalLock((HGLOBAL) hDIB);

// 获取DIB宽度
int cxDIB = (int) m_clrJpegDec.ImgWidth;

// 获取DIB高度
int cyDIB = (int) m_clrJpegDec.ImgHeight;

// ::GlobalUnlock((HGLOBAL) hDIB);

CRect rcDIB;
rcDIB.top = rcDIB.left = 0;
rcDIB.right = cxDIB;
rcDIB.bottom = cyDIB;

CWnd* pWnd=GetDlgItem(nID);
CDC* pDC=pWnd->GetDC();
RECT rect;
pWnd->GetClientRect(&rect);//得到控件矩形区域
CRect rcDest(rect);
// 输出DIB
PaintDIB(pDC->m_hDC, &rcDest, hDIB,&rcDIB,m_palDIB);

}
// 恢复正常光标
EndWaitCursor(); }bool CMyProjectDlg::PaintDIB(HDC hDC, LPRECT lpDCRect, HDIB hDIB, LPRECT lpDIBRect, CPalette *pPal)
{ BITMAPINFO* lpDIBHdr;            // BITMAPINFOHEADER指针
LPSTR    lpDIBBits;// DIB象素指针
HPALETTE hPal=NULL;           // DIB调色板
HPALETTE hOldPal=NULL;        // 以前的调色板
BOOL bSuccess; // 判断DIB对象是否为空
if (hDIB == NULL)
{
// 返回
return FALSE;
}
lpDIBHdr=(BITMAPINFO*)new char(sizeof(BITMAPINFOHEADER));
// 锁定DIB
lpDIBBits = (LPSTR) ::GlobalLock((HGLOBAL) hDIB);
lpDIBHdr->bmiHeader=m_clrJpegDec.bi;
/* if (pPal != NULL)
{
hPal = (HPALETTE) pPal->m_hObject; // 选中调色板
hOldPal = ::SelectPalette(hDC, hPal, TRUE);
}
*/
// 设置显示模式
::SetStretchBltMode(hDC, COLORONCOLOR); // 判断是调用StretchDIBits()还是SetDIBitsToDevice()来绘制DIB对象
if ((RECTWIDTH(lpDCRect)  == RECTWIDTH(lpDIBRect)) &&
   (RECTHEIGHT(lpDCRect) == RECTHEIGHT(lpDIBRect)))
{
// 原始大小，不用拉伸。
bSuccess = ::SetDIBitsToDevice(hDC,                    // hDC
   lpDCRect->left,             // DestX
   lpDCRect->top,              // DestY
   RECTWIDTH(lpDCRect),        // nDestWidth
   RECTHEIGHT(lpDCRect),       // nDestHeight
   lpDIBRect->right,            // SrcX
   (int)m_clrJpegDec.ImgHeight -
  lpDIBRect->top,          // SrcY
   0,                          // nStartScan
   (WORD)m_clrJpegDec.ImgHeight,  // nNumScans
   lpDIBBits,                  // lpBits
   (LPBITMAPINFO)lpDIBHdr,     // lpBitsInfo
   DIB_RGB_COLORS);            // wUsage
}
    else
{
// 非原始大小，拉伸。
bSuccess = ::StretchDIBits(hDC,                          // hDC
   lpDCRect->left,                 // DestX
   lpDCRect->top,                  // DestY
   RECTWIDTH(lpDCRect),            // nDestWidth
   RECTHEIGHT(lpDCRect),           // nDestHeight
   lpDIBRect->left,                // SrcX
   lpDIBRect->top,                 // SrcY
   RECTWIDTH(lpDIBRect),           // wSrcWidth
   RECTHEIGHT(lpDIBRect),          // wSrcHeight
   lpDIBBits,                      // lpBits
   (LPBITMAPINFO)lpDIBHdr,         // lpBitsInfo
   DIB_RGB_COLORS,                 // wUsage
   SRCCOPY);                       // dwROP
}

    // 解除锁定
::GlobalUnlock((HGLOBAL) hDIB);

/* // 恢复以前的调色板
if (hOldPal != NULL)
{
::SelectPalette(hDC, hOldPal, TRUE);
}
*/

// 返回
return true;}
BOOL CClrJpegDecode::ShowJpegToScreen(unsigned char *hJpegBuf, char *filename)这个函数是用来解码jpeg并转换成bmp的，哪位高手帮我看看到底是哪的问题，真不甚感激，我改了两天都没找到毛病错误显示是应用程序发生异常unknow software exception(0X80000003)位置为0x7c92120e。

调试易

关闭窗口的时候出错

解决方案 »