symbian bitmap 上画线并保存

来源：互联网发布：网络理财平台推荐编辑：程序博客网时间：2024/04/29 22:21

void CMainView::DrawLineOnBitmapL()
{
CFbsBitmap* aOriBitmap = new(ELeave) CFbsBitmap;
//从mbm文件中载入位图
HBufC* path = CPathConfig::GetMbmPathLC();
aOriBitmap->Load(path->Des(), EMbmZtqJyzs, EFalse);
CleanupStack::PopAndDestroy();
//创建新的位图
CFbsBitmap* aNewBitmap = new(ELeave) CFbsBitmap;
aNewBitmap->Create(aOriBitmap->SizeInPixels(), aOriBitmap->DisplayMode());

CFbsBitmapDevice* grahicsDevice = CFbsBitmapDevice::NewL(aNewBitmap);
CFbsBitGc* agrahicsGc;
TInt aErr = User::LeaveIfError(grahicsDevice->CreateContext(agrahicsGc));
TPoint aZero(0, 0);
//在新位图上加载原位图，然后画线
agrahicsGc->BitBlt(aZero, aOriBitmap);
agrahicsGc->DrawLine(aZero, TPoint(30, 30));

//保存位图，CFbsBitmap的Save()API保存的是.mbm格式的图片，可以用\Symbian\9.1\S60_3rd_MR\S60Tools\mbmviewer工具查看，也可以用imageload 转换为制定格式（jpg...）后查看
TInt err = aNewBitmap->Save(_L("c:\\data\\bitmap.mbm"));

}