MFC: Click the button to save the picture

//保存
void CCameraLinkTestDlg::OnBnClickedSave()
{
	// TODO: 在此添加控件通知处理程序代码
	if (mat.empty())
	{
		MessageBox(_T("请先进行图片捕获!"));
		return;
	}
	SYSTEMTIME str;
	GetLocalTime(&str);
	CString timePath;
	CString img = _T("Image");
	CString cs = _T("-");
	CString cs1 = _T("__");
	//用当前时间创建默认图片名称
	timePath.Format(_T("%s%s%2d%s%02d%s%02d%s%02d%s%02d%s%02d"), img, cs1, str.wYear, cs, str.wMonth, cs, str.wDay, cs1, str.wHour, cs, str.wMinute, cs, str.wSecond);
	TCHAR szFilter[] = _T("JPG图片(*.jpg)|*.jpg|BMP图片(*.bmp)|*.bmp|PNG图片(*.png)|*.png|JPEG图片(*.jpeg)|*.jpeg|DIB图片(*dib)|*.dib|PBM图片(*.pbm)|*.pbm||");
	CFileDialog fileDlg(FALSE, _T("jpg"), timePath, OFN_HIDEREADONLY | OFN_OVERWRITEPROMPT, szFilter, this);
	CString strFilePath;
	// 显示保存文件对话框   
	if (IDOK == fileDlg.DoModal())
	{
		// 如果点击了文件对话框上的“保存”按钮,则将选择的文件路径显示到编辑框里   
		strFilePath = fileDlg.GetPathName();
		vector<int> compression_params;
		std::string STDStr(CW2A(strFilePath.GetString()));
		imwrite(STDStr, imgOf8bit, compression_params);
	}
}

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Origin blog.csdn.net/qq_41498261/article/details/105030308