Picture

What this page is about

Work with pictures in Aspose.Slides for C++: insert, crop, compress, recolor, and export images with C++ examples for PPT, PPTX, and ODP presentations.

This article demonstrates how to insert and access pictures from in-memory images using Aspose.Slides for C++. The examples below create an image in memory, place it on a slide, and then retrieve it.

Add a Picture

This code generates a small bitmap, converts it to a stream, and inserts it as a picture frame on the first slide.

#include <DOM/IImageCollection.h>
#include <DOM/IPPImage.h>
#include <DOM/IShapeCollection.h>
#include <DOM/ISlide.h>
#include <DOM/Presentation.h>
#include <DOM/ShapeType.h>
#include <Export/SaveFormat.h>
#include <drawing/bitmap.h>
#include <drawing/color.h>
#include <drawing/graphics.h>
#include <drawing/imaging/image_format.h>
#include <drawing/imaging/pixel_format.h>
#include <drawing/solid_brush.h>
#include <system/io/memory_stream.h>
#include <system/smart_ptr.h>
using namespace Aspose::Slides;
using namespace Aspose::Slides::Export;
using namespace System;
using namespace System::Drawing;
using namespace System::IO;

static void AddPicture()
{
    auto presentation = MakeObject<Presentation>();
    auto slide = presentation->get_Slide(0);

    // Create a simple in-memory image.
    auto bitmap = MakeObject<Bitmap>(100, 100, System::Drawing::Imaging::PixelFormat::Format32bppArgb);
    auto graphics = Graphics::FromImage(bitmap.get());
    graphics->FillRectangle(MakeObject<SolidBrush>(Color::FromArgb(144, 238, 144)), 0, 0, 100, 100);
    graphics->Dispose();

    // Convert the bitmap to a byte array.
    auto bitmapStream = MakeObject<MemoryStream>();
    bitmap->Save(bitmapStream, System::Drawing::Imaging::ImageFormat::get_Png());
    auto pngBytes = bitmapStream->ToArray();

    // Add the image to the presentation.
    auto image = presentation->get_Images()->AddImage(MakeObject<MemoryStream>(pngBytes));

    // Insert a picture frame showing the image on the first slide.
    slide->get_Shapes()->AddPictureFrame(
        ShapeType::Rectangle, 50, 50, bitmap->get_Width(), bitmap->get_Height(), image);

    presentation->Save(u"picture.pptx", SaveFormat::Pptx);
    presentation->Dispose();
}

Access a Picture

This example ensures a slide contains a picture frame and then accesses the first one it finds.

#include <DOM/IImageCollection.h>
#include <DOM/IPPImage.h>
#include <DOM/IPictureFrame.h>
#include <DOM/IShape.h>
#include <DOM/IShapeCollection.h>
#include <DOM/ISlide.h>
#include <DOM/Presentation.h>
#include <DOM/ShapeType.h>
#include <drawing/bitmap.h>
#include <drawing/imaging/image_format.h>
#include <drawing/imaging/pixel_format.h>
#include <system/io/memory_stream.h>
#include <system/object_ext.h>
#include <system/smart_ptr.h>
using namespace Aspose::Slides;
using namespace System;
using namespace System::Drawing;
using namespace System::IO;

static void AccessPicture()
{
    auto presentation = MakeObject<Presentation>();
    auto slide = presentation->get_Slide(0);

    auto bitmap = MakeObject<Bitmap>(40, 40, System::Drawing::Imaging::PixelFormat::Format32bppArgb);
    auto bitmapStream = MakeObject<MemoryStream>();
    bitmap->Save(bitmapStream, System::Drawing::Imaging::ImageFormat::get_Png());
    auto pngBytes = bitmapStream->ToArray();

    auto image = presentation->get_Images()->AddImage(MakeObject<MemoryStream>(pngBytes));
    slide->get_Shapes()->AddPictureFrame(ShapeType::Rectangle, 0, 0, 40, 40, image);

    auto pictureFrame = SharedPtr<IPictureFrame>();
    for (auto&& shape : slide->get_Shapes())
    {
        if (ObjectExt::Is<IPictureFrame>(shape))
        {
            pictureFrame = ExplicitCast<IPictureFrame>(shape);
            break;
        }
    }

    presentation->Dispose();
}