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C# tutorial for how to convert Excel workbooks and sheets to PDF document, with ... of cells in Excel XLSX spreadsheet to Adobe PDF file using C# in ASP. ... false; //Convert Excel to pdf, and save it to file stream using (var stream = File.

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Attacks against smart cards have also been engineered by experts such as Paul Kocher, who runs a security company called Cryptography Research (wwwcryptographycom) By studying a smart card s power consumption as it conducted various operations, Kocher was able to determine the contents stored on the card While such attacks are possible, they require a reasonable amount of expertise on the part of the attacker However, over time, such attacks may become easier to carry out by an average attacker..



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This is a package of an Example Project for NpoiExcel. As a free C# excel API, it can enable developers to edit, copy, create, print and convert Excel files which ...

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PDF Converter Services ... public DataSet GetExcel(string fileName) { Application oXL; Workbook oWB; Worksheet oSheet; Range oRng; try { // creat a ...

After all of the pages have been rendered, the end-print signal will be emitted. Listing 12-6 shows a callback function that will be used for this signal. It frees all dynamically allocated memory in the PrintData object and then frees the object itself. Listing 12-6. Callback Function for the end-print Signal /* Clean up after the printing operation since it is done. */ static void end_print (GtkPrintOperation *operation, GtkPrintContext *context, Widgets *w) { g_strfreev (w->data->lines); g_slice_free1 (sizeof (PrintData), w->data); w->data = NULL; } The printing API provided by GTK+ is very large, even without taking into consideration the large APIs for PangoLayout and Cairo. Therefore, this example is obviously only a simple one that is meant to get you started and help relieve the learning curve that the API presents. You can use this example to get started with implementing printing in your own applications, but you will need to delve further into the topic in most cases.





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This is a package of an Example Project for NpoiExcel. As a free C# excel API, it can enable developers to edit, copy, create, print and convert Excel files which ...

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Use iTextSharp. It is native .NET code. Doesn't require any Excel interop -. https://​www.nuget.org/packages/itextsharp/.

imgAnalyticGraph.ImageUrl = "PHBB.aspx ticker=" + strTicker + "&days=100";

Cairo is a graphics rendering library that is used throughout the GTK+ library. In the context of this book, Cairo is used to render pages during a print operation. This section will introduce you to the cairo_t object and some of the drawing functions associated with it.

In other cases, due to the way that the rsh command works, the additional machine would allow a login without a username and password because the machine was whitelisted by the user. The Morris worm illustrates that security is not only a software quality issue, but also a systems deployment issue. Some systems are large and have so many different features that it is difficult to configure the programs correctly so that they have all of their unnecessary features turned off. Entire books have been written on how to harden Linux and Windows deployments. System administrators also should not allow their users to choose weak, easily guessable passwords, or allow their users to arbitrarily whitelist other machines just to make things more convenient.

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Open Source PDF Libraries in C#
SharpPDF is a C# library that implements different objects for the creation of PDF documents with few steps. It is created for .NET framework 1.1 and it can create ... iTextSharp · PDFsharp · Report.NET · SharpPDF

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Pages of a print operation in GTK+ are rendered as cairo_t objects. This object allows you to render text, draw various shapes and lines, and fill clipped areas with color. Let us look at a few functions provided by Cairo for manipulating Cairo drawing contexts.

And with that, the Bollinger band is integrated into the Analytics pane just like the price history chart. Lastly, let s looks at the most important and yet simple part of this sample, AJAXifying the form so that all updates occur without doing any page refresh.

Shapes in Cairo contexts are rendered with paths. A new path is created with cairo_new_path(). You can then retrieve a copy of the new path with cairo_copy_path() and add new lines and shapes to the path. cairo_path_t* cairo_copy_path (cairo_t *cairo_context); There are a number of functions provided for drawing paths, which are listed in Table 12-1. More information about each function can be found in the Cairo API documentation. Table 12-1. Cairo Path-Drawing Functions

There are three main things that the Morris worm did to propagate from one server to another: (1) it attempted to use a buffer overflow vulnerability in the finger daemon server, (2) it took advantage of the debug mode in sendmail, and (3) it tried to remotely log into hosts using common usernames and passwords There are many lessons to be learned from the Morris worm A first is that diversity is good The Morris worm took advantage of vulnerabilities in UNIX servers Since most UNIX systems function the same way, the Morris worm was able to rely on certain vulnerabilities existing on all of these hosts Therefore, from a security standpoint, homogeneity of operating systems makes it easier for an attacker to predictably exploit system vulnerabilities if the vulnerability exists on one system, it exists on all of them.

cairo_arc()

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