Einfügen von OLE Objekten in das Arbeitsblatt

Mögliche Verwendungsszenarien

Aspose.Cells ermöglicht es Ihnen, ein OLE-Objekt im Arbeitsblatt einzufügen. Bitte verwenden Sie die Methode Worksheet->GetOleObjects()->Add() für diesen Zweck. Sie benötigen ein Bild-Byte-Array, das verwendet wird, um das OLE-Objekt im Arbeitsblatt einzufügen, und OLE-Objektdatenbytes, die Ihr tatsächliches Objekt darstellen, um das OLE-Objekt im Arbeitsblatt einzufügen. 

Einfügen von OLE-Objekten in das Arbeitsblatt

The following sample code creates the workbook object and inserts the Ole object inside the first worksheet and saves it as output Excel file. Please see the Aspose-Logo used as image bytes and input Excel file used as Ole object data inside the code for reference.

Beispielcode

// For complete examples and data files, please go to https://github.com/aspose-cells/Aspose.Cells-for-C

Vector<uint8_t> GetDataFromFile(const char* file)
{

	// open a file 
	std::ifstream fileStream(file, std::ios::binary);

	if (!fileStream.is_open()) {
		std::cerr << "Failed to open the file: " << file << std::endl;
		return Vector<uint8_t>(0);
	}

	// Get file size
	fileStream.seekg(0, std::ios::end);
	std::streampos fileSize = fileStream.tellg();
	fileStream.seekg(0, std::ios::beg);

	// Read file contents into uint8_t array
	uint8_t* buffer = new uint8_t[fileSize];
	fileStream.read(reinterpret_cast<char*>(buffer), fileSize);
	fileStream.close();

	Vector<uint8_t>data(buffer, fileSize);
	delete[] buffer;

	return data;
}

......

Aspose::Cells::Startup();

// Source directory path.
U16String srcDir(u"..\\Data\\01_SourceDirectory\\");

// Output directory path.
U16String outDir(u"..\\Data\\02_OutputDirectory\\");

// Path of output Excel file.
U16String outputInsertingOLEObjectsIntoWorksheet = outDir + u"outputInsertingOLEObjectsIntoWorksheet.xlsx";

// Instantiate a new workbook.
Workbook workbook;

// Get the first worksheet.
Worksheet worksheet = workbook.GetWorksheets().Get(0);

// Read Image for Ole Object into array of bytes.
U16String imagePath = srcDir + u"AsposeLogo.png";

Vector<uint8_t>imageData = GetDataFromFile(imagePath.ToUtf8().c_str());

// Read Ole Object into array of bytes.
U16String oleObjectPath = srcDir + u"inputInsertOleObject.xlsx";
Vector<uint8_t> oleObjectData = GetDataFromFile(oleObjectPath.ToUtf8().c_str());

// Add an Ole object into the worksheet with the image.
int idx = worksheet.GetOleObjects().Add(2, 2, 200, 220, imageData);

// Set the Ole object data.
OleObject oleObj = worksheet.GetOleObjects().Get(idx);
oleObj.SetObjectData(oleObjectData);

// Save the workbook.
workbook.Save(outputInsertingOLEObjectsIntoWorksheet);

Aspose::Cells::Cleanup();