用JavaScript通过C++检查VBA项目是否受保护并锁定以供查看
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用JavaScript通过C++检查VBA项目是否已保护并锁定以供查看
Aspose.Cells允许你检测Excel文件的VBA（Visual Basic for Applications）项目是否已受保护且锁定查看。API提供VbaProject.islockedForViewing属性，如果被锁定查看，则返回VbaProject.islockedForViewing为true。
示例代码
以下示例代码加载示例Excel文件，并检查Excel文件的VBA（Visual Basic for Applications）项目是否受保护和锁定以供查看。请同时查看其控制台输出以获取参考。
<!DOCTYPE html>
<html>
<head>
<title>Check VBA Project Protection Example</title>
</head>
<body>
<h1>Check if VBA Project is Protected</h1>
<input type="file" id="fileInput" accept=".xls,.xlsx,.xlsm,.xlsb,.csv" />
<button id="runExample">Check VBA Protection</button>
<a id="downloadLink" style="display: none;">Download Result</a>
<div id="result"></div>
</body>
<script src="aspose.cells.js.min.js"></script>
<script type="text/javascript">
const { Workbook, SaveFormat, Utils } = AsposeCells;
AsposeCells.onReady({
license: "/lic/aspose.cells.enc",
fontPath: "/fonts/",
fontList: [
"arial.ttf",
"NotoSansSC-Regular.ttf"
]
}).then(() => {
console.log("Aspose.Cells initialized");
});
document.getElementById('runExample').addEventListener('click', async () => {
const fileInput = document.getElementById('fileInput');
const resultDiv = document.getElementById('result');
if (!fileInput.files.length) {
resultDiv.innerHTML = '<p style="color: red;">Please select an Excel file (.xlsm) to check.</p>';
return;
}
const file = fileInput.files[0];
const arrayBuffer = await file.arrayBuffer();
// Instantiate Workbook from the uploaded file
const workbook = new Workbook(new Uint8Array(arrayBuffer));
// Access the VBA project of the workbook.
const vbaProject = workbook.vbaProject;
// Whether "Lock project for viewing" is true or not.
const isLocked = vbaProject ? vbaProject.islockedForViewing : null;
if (isLocked === null) {
resultDiv.innerHTML = '<p style="color: orange;">The workbook does not contain a VBA project.</p>';
} else {
resultDiv.innerHTML = `<p>Is VBA Project Locked for Viewing: <strong>${isLocked}</strong></p>`;
console.log("Is VBA Project Locked for Viewing: " + isLocked);
}
});
</script>
</html>
控制台输出
这是上述示例代码在使用提供的示例Excel文件时执行时的控制台输出。
Is VBA Project Locked for Viewing: True