c++ powerpoint 文本框插入公式 例子

以下是一个使用 C++ 和 VBA 代码将数学公式插入 PowerPoint 文本框的示例：

#include <windows.h>
#include <ole2.h>
#include <atlbase.h>
#include <comutil.h>
#include <cstdio>

#pragma comment(lib, "ole32.lib")
#pragma comment(lib, "comsuppw.lib")

int main()
{
    HRESULT hr = CoInitialize(NULL);
    if (FAILED(hr))
    {
        printf("Failed to initialize COM library\n");
        return 1;
    }

    hr = CoCreateInstance(CLSID_PowerPointApplication, NULL, CLSCTX_LOCAL_SERVER, IID_IDispatch, (void**)&app);
    if (FAILED(hr))
    {
        printf("Failed to create PowerPoint application instance\n");
        CoUninitialize();
        return 1;
    }

    // 打开一个演示文稿
    IDispatch* pres = NULL;
    _variant_t vtName("C:\\example.pptx");
    hr = app->Presentations->Open(vtName, VARIANT_FALSE, VARIANT_FALSE, VARIANT_FALSE, &pres);
    if (FAILED(hr))
    {
        printf("Failed to open presentation\n");
        app->Release();
        CoUninitialize();
        return 1;
    }

    // 在幻灯片上插入一个文本框
    IDispatch* slide = NULL;
    hr = pres->Slides->Item(1, &slide);
    if (FAILED(hr))
    {
        printf("Failed to get slide\n");
        pres->Close();
        app->Release();
        CoUninitialize();
        return 1;
    }

    IDispatch* txtBox = NULL;
    hr = slide->Shapes->AddTextbox(msoTextOrientationHorizontal, 100, 100, 400, 100, &txtBox);
    if (FAILED(hr))
    {
        printf("Failed to add text box\n");
        slide->Release();
        pres->Close();
        app->Release();
        CoUninitialize();
        return 1;
    }

    // 将数学公式插入文本框
    _bstr_t formula(L"y = mx + b"); // 更改此处的公式
    IDispatch* txtRange = NULL;
    hr = txtBox->GetItem(_variant_t(2), &txtRange);
    if (FAILED(hr))
    {
        printf("Failed to get text range\n");
        txtBox->Release();
        slide->Release();
        pres->Close();
        app->Release();
        CoUninitialize();
        return 1;
    }

    hr = txtRange->CallMethod(DISPID_VALUE, NULL, 1, &formula);
    if (FAILED(hr))
    {
        printf("Failed to insert formula\n");
        txtRange->Release();
        txtBox->Release();
        slide->Release();
        pres->Close();
        app->Release();
        CoUninitialize();
        return 1;
    }

    // 保存并关闭演示文稿
    pres->Save();
    pres->Close();

    // 释放 COM 对象
    txtRange->Release();
    txtBox->Release();
    slide->Release();
    pres->Release();
    app->Release();
    CoUninitialize();

    return 0;
}

这是一个使用 C++ 和 VBA 代码向 PowerPoint 文本框插入数学公式的简单示例。它使用 PowerPoint 对象模型和 VBA 代码来打开演示文稿、插入文本框、插入数学公式并保存演示文稿。请注意，您需要将代码中的公式更改为您要插入的实际公式。