屏幕截图问题 disk full！（急）

junuo

屏幕截图问题 disk full！（急） [复制链接]

下面是我的代码：
我运行调试出现“Disk fulla ccessing\NandFlash\Y.bmp"的对话框时怎么回事啊？但是我的硬盘实际上有很大的空间，调试了很久了，还是找不出原因，大家 帮忙看看代码啊。


void Drawninformation::SaveDCToBMP(HDC hDC,int nStartX,int nStartY, int nWidth,int nHeight,LPCTSTR szFileName)
{
//定义图形色深
int iPixel = 32;
//位图信息头
LPBITMAPINFO lpbmih = new BITMAPINFO;
lpbmih->bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
lpbmih->bmiHeader.biWidth = nWidth;
lpbmih->bmiHeader.biHeight = nHeight;
lpbmih->bmiHeader.biPlanes = 1;
lpbmih->bmiHeader.biBitCount = iPixel;
lpbmih->bmiHeader.biCompression = BI_RGB;
lpbmih->bmiHeader.biSizeImage = 0;
lpbmih->bmiHeader.biXPelsPerMeter = 0;
lpbmih->bmiHeader.biYPelsPerMeter = 0;
lpbmih->bmiHeader.biClrUsed = 0;
lpbmih->bmiHeader.biClrImportant = 0;
//创建位图数据
HDC hdcMem;
HBITMAP hBitMap = NULL;
CBitmap *pBitMap = NULL;
CDC *pMemDC = NULL;
BYTE *pBits = NULL;

hdcMem = CreateCompatibleDC(hDC);
hBitMap = CreateDIBSection(hdcMem,lpbmih,DIB_PAL_COLORS,(void **)&pBits,NULL,0);
////
pBitMap = new CBitmap;
pBitMap->Attach(hBitMap);
////
pMemDC = new CDC;
pMemDC->Attach(hdcMem);
//CreateCompatibleBitmap
////
pMemDC->SelectObject(pBitMap);
pMemDC->BitBlt(0,0,nWidth,nHeight,CDC::FromHandle(hDC),nStartX,nStartY,SRCCOPY);
BITMAPFILEHEADER bmfh;
//位图文件头
ZeroMemory(&bmfh,sizeof(BITMAPFILEHEADER));
*((char *)&bmfh.bfType) = 'B';
*(((char *)&bmfh.bfType) + 1) = 'M';
bmfh.bfType = 0x4d42;  //bmp  
bmfh.bfOffBits = sizeof(BITMAPFILEHEADER) + sizeof(BITMAPINFOHEADER);
bmfh.bfSize = bmfh.bfOffBits + (nWidth * nHeight) * iPixel / 8;
int iBMPBytes = nWidth * nHeight * iPixel / 8;
/* bmfh.bfSize = (nWidth*32+31)/8;
int iBMPBytes = bmfh.bfSize * nHeight;*/
////
CFile file;
if(file.Open(szFileName,CFile::modeWrite | CFile::modeCreate,NULL))
{  
file.Write(&bmfh,sizeof(BITMAPFILEHEADER));
file.Write(&(lpbmih->bmiHeader),sizeof(BITMAPINFOHEADER));
file.Write(pBits,iBMPBytes);//在此处弹出对话框“Disk full accessing\NandFlash\Y.bmp"，还望大家能够帮忙看看


file.Close();
}
////
DeleteObject(hBitMap);
DeleteObject(hDC);
pMemDC->DeleteDC();
delete pMemDC;
pMemDC = NULL;
delete pBitMap;
pBitMap = NULL;
delete lpbmih;
lpbmih = NULL;

}

44retretr

你把bmp数据替换为固定长度大小（比如900k）的char数组，看看还会不会出现同样的问题了。如果还是如此，可能不是bmp的问题，而是其它问题，不如nand flash本身的问题！

wxzajx

我刚才发的程序可以运行的，你试一下。