ワークシートにOLEオブジェクトを挿入する
可能な使用シナリオ
Aspose.Cellsを使用すると、ワークシート内にOLEオブジェクトを挿入できます。この目的のためにWorksheet->GetOleObjects()->Add()メソッドを使用してください。OLEオブジェクトをワークシート内に挿入するために使用されるイメージバイト配列と、実際のオブジェクトであるOleオブジェクトデータバイトが必要です。
ワークシートにOLEオブジェクトを挿入する
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 ロゴ used as image bytes and input Excel file used as Ole object data inside the code for reference.
サンプルコード
// 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(); |