Convert Excel to High‑Resolution Image with C++

With the increasing prevalence of high‑resolution screens, images generated at the default 96 DPI often appear blurry and unclear. To ensure clarity on high‑resolution screens, it’s essential to generate images at a higher DPI. Aspose.Cells offers functionality to set ImageOrPrintOptions.GetHorizontalResolution() and ImageOrPrintOptions.GetVerticalResolution(), allowing you to create high‑quality images from Excel files that look sharp on high‑resolution displays.

#include <iostream>
#include "Aspose.Cells.h"
using namespace Aspose::Cells;

int main()
{
    Aspose::Cells::Startup();

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

    // Load the Excel file
    Workbook workbook(u"input.xlsx");

    // Create an instance of ImageOrPrintOptions
    ImageOrPrintOptions options;
    options.SetHorizontalResolution(300); // Set horizontal resolution to 300 DPI
    options.SetVerticalResolution(300);   // Set vertical resolution to 300 DPI
    options.SetImageType(ImageType::Png); // Set the image type

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

    // Create a SheetRender instance
    SheetRender render(sheet, options);

    // Generate and save the image
    render.ToImage(0, u"output.png");

    std::cout << "Image generated successfully!" << std::endl;

    Aspose::Cells::Cleanup();
}