本文整理汇总了C++中CAutoRefPtr::LockPixelBits方法的典型用法代码示例。如果您正苦于以下问题：C++ CAutoRefPtr::LockPixelBits方法的具体用法？C++ CAutoRefPtr::LockPixelBits怎么用？C++ CAutoRefPtr::LockPixelBits使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类CAutoRefPtr的用法示例。
在下文中一共展示了CAutoRefPtr::LockPixelBits方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: MakeCacheApha
void SQrCtrl::MakeCacheApha( ISkinObj *pSkin, IBitmap *_pBitCache, IBitmap *_pBitMask )
{
CAutoRefPtr<IRenderTarget> pRTDst;
GETRENDERFACTORY->CreateRenderTarget(&pRTDst, 0, 0);
CAutoRefPtr<IRenderObj> pOldBmp;
pRTDst->SelectObject(_pBitCache, &pOldBmp);
CRect rc(CPoint(0, 0), _pBitCache->Size());
pSkin->Draw(pRTDst, &rc, 0);
CAutoRefPtr<IBitmap> bmp;
GETRENDERFACTORY->CreateBitmap(&bmp);
if (m_QrRect.IsRectEmpty())
{
bmp = _pBitMask;
}
else
{
bmp->Init(m_QrRect.Width(), m_QrRect.Height());
pRTDst->SelectObject(bmp, NULL);
CRect rcSrc(CPoint(0, 0), _pBitMask->Size());
rc = CRect(CPoint(0, 0), bmp->Size());
pRTDst->DrawBitmapEx(rc, _pBitMask, rcSrc, MAKELONG(EM_STRETCH, m_fl));
pRTDst->SelectObject(pOldBmp);
}
int nDesLinePixels = _pBitCache->Width();
int nDesRowPixels = _pBitCache->Height();
int nline = bmp->Height();
int nRow = bmp->Width();
if ((nDesRowPixels < nRow + m_QrRect.top) || (nDesLinePixels < nline + m_QrRect.left))
return;
LPDWORD pBitCache = (LPDWORD)_pBitCache->LockPixelBits();
LPDWORD pBitMask = (LPDWORD)bmp->LockPixelBits();
LPDWORD pDst = pBitCache;
LPDWORD pSrc = pBitMask;
LPDWORD pLine = pDst + m_QrRect.top * nDesLinePixels;
for (int line = 0; line < nline; line++)
{
LPDWORD pLineData = pLine + m_QrRect.left;
for (int row = 0; row < nRow; row++)
{
LPBYTE byAlpha = (LPBYTE)(pSrc + row);
if (byAlpha[3] == 0)
{
LPDWORD pByteAlpha = (pLineData + row);
*pByteAlpha =RGBA(0,0,0,0);
}
}
pSrc += nRow;
pLine += nDesLinePixels;
}
_pBitCache->UnlockPixelBits(pBitCache);
bmp->UnlockPixelBits(pBitMask);
}示例2: CreateQrImg
void SQrCtrl::CreateQrImg( SStringT strContent )
{
CQR_Encode qrEncode;
int nLevel = 3;
int nVersion = 0;
bool bAutoExtent = true;
int nMaskingNo = -1;
SStringA strContentA = S_CT2A(strContent, CP_UTF8);
if (qrEncode.EncodeData(nLevel, nVersion, bAutoExtent, nMaskingNo, strContentA, strContentA.GetLength()))
{
if (m_pSkin == NULL)
{
int qrSize = qrEncode.m_nSymbleSize + (QR_MARGIN * 2);
CAutoRefPtr<IBitmap> bmp;
GETRENDERFACTORY->CreateBitmap(&bmp);
bmp->Init(qrSize, qrSize);
LPDWORD pBits = (LPDWORD)bmp->LockPixelBits();
memset(pBits, 0xFF, qrSize*qrSize * 4);
int nLineWid = qrSize;
LPDWORD pLine = pBits + QR_MARGIN*nLineWid;
for (int i = 0; i < qrEncode.m_nSymbleSize; i++)
{
LPDWORD pLineData = pLine + QR_MARGIN;
for (int j = 0; j < qrEncode.m_nSymbleSize; j++)
{
if (qrEncode.m_byModuleData[i][j])
{
pLineData[j] = RGBA(0, 0, 0, 255);
}
}
pLine += qrSize;
}
bmp->UnlockPixelBits(pBits);
SetImage(bmp);
}
else
{
int qrSize = qrEncode.m_nSymbleSize + 2;
CAutoRefPtr<IBitmap> bmp;
GETRENDERFACTORY->CreateBitmap(&bmp);
SIZE skinSize = m_pSkin->GetSkinSize();
CRect rcWind = GetWindowRect();
bmp->Init(rcWind.Width(), rcWind.Height());
CAutoRefPtr<IBitmap> qrbmp;
GETRENDERFACTORY->CreateBitmap(&qrbmp);
qrbmp->Init(qrSize, qrSize);
LPDWORD pBits = (LPDWORD)qrbmp->LockPixelBits();
memset(pBits, 0x00, qrSize*qrSize * 4);
int nLineWid = qrSize;
LPDWORD pLine = pBits + nLineWid;
for (int i = 0; i < qrEncode.m_nSymbleSize; i++)
{
LPDWORD pLineData = pLine + 1;
for (int j = 0; j < qrEncode.m_nSymbleSize; j++)
{
if (qrEncode.m_byModuleData[i][j])
{
pLineData[j] = RGBA(0xFF, 0xFF, 0xFF, 0xFF);
}
}
pLine += qrSize;
}
qrbmp->UnlockPixelBits(pBits);
MakeCacheApha(m_pSkin, bmp, qrbmp);
SetImage(bmp);
}
}
}