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Splitting a PDF in .NET - C# Corner
Apr 13, 2016 · In this article we will learn how to split a PDF in a .NET application using DynamicPDF Merger.

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ReturnedUnmanagedStruct* pResult = (ReturnedUnmanagedStruct*)CoTaskMemAlloc( sizeof(ReturnedUnmanagedStruct)); pResult->Hours = 1; pResult->Minutes = 59; pResult->Seconds = 11; return pResult; } The only substantial difference between this and the original version is the use of CoTaskMemAlloc to allocate the structure. CoTaskMemAlloc allocates memory that we can free directly from managed code. The managed code to call this revised function looks like this in C#: [DllImport("FlatAPIStructLib.DLL")] public static extern IntPtr ReturnCoMemStruct(); //call the unmanaged function returning a CoTaskMemAlloc struct IntPtr structPtr = ReturnCoMemStruct(); //marshal the returned pointer to a struct ReturnedManagedStruct bStruct = (ReturnedManagedStruct)Marshal.PtrToStructure( structPtr, typeof(ReturnedManagedStruct)); //free the CoTaskMemAlloc memory Marshal.FreeCoTaskMem(structPtr); //show the results Console.WriteLine("ReturnCoMemStruct results: {0}, {1}, {2}", bStruct.Hours, bStruct.Minutes, bStruct.Seconds); It is implemented like this in Visual Basic .NET: <DllImport("FlatAPIStructLib.DLL")> _ Public Function ReturnCoMemStruct() As IntPtr End Function 'call the unmanaged function 'returning a CoTaskMemAlloc struct structPtr = ReturnCoMemStruct() 'marshal the returned pointer to a struct Dim bStruct As ReturnedManagedStruct _ = Marshal.PtrToStructure( _ structPtr, GetType(ReturnedManagedStruct)) 'free the CoTaskMemAlloc memory Marshal.FreeCoTaskMem(structPtr) 'show the results Console.WriteLine( _ "ReturnCoMemStruct results: {0}, {1}, {2}", _ bStruct.Hours, bStruct.Minutes, bStruct.Seconds) Using CoTaskMemAlloc doesn t eliminate our responsibility to free the memory. However, we can easily take care of that duty using the static FreeCoTaskMem method of the Marshal class.

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Image class so you are able to export PDF files to BMP,JPG,PNG,TIFF as well as ... html, images, shapes), change pdf document security settings, merge or split ...

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Shows how to split PDF file with GemBox.Pdf in C# and VB.NET.

When placing PIR motion sensors, there are a few tricks to watch out for. The most important is to have the sensor pointed away from windows or other openings through which they may be able to detect movement. You don t want your alarm triggered just because someone came to your front door to deliver a package while you were out and the loungeroom motion sensor picked them up through the front window! Likewise, you need to be careful of anything that can move of its own accord when there is nobody present such as curtains that can move when blown by a central heating system or a fan. Finally, think about your pets: you may want to be able to leave your cat inside, yet still turn the security system on when you go out. There are special motion detector lenses specifically designed for this purpose called pet-alley lenses, and they give the motion detector a deliberately induced blind spot so an animal can walk underneath the sensor s active area without setting it off. If a person walks through, however, they are tall enough that they will enter the active area covered by the sensor and trigger the alarm. Even if you get the placement exact, there can still be long-term problems with PIRs. The classic problem is that because they are slightly warm and provide a nice protected space, they often become home to creepy crawlies such as spiders, which can even cause the PIR to trip. Many alarm technicians carry a can of insecticide with them and spray carefully around every PIR they work on as a preventative measure.

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how to convert pdf files to image - Stack Overflow
You can use Ghostscript to convert PDF to images. ... has GPL license; it can be used from C# as command line tool executed with System.

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C# How to write page number when split large pdf file into small ...
Aug 14, 2018 · code taken from https://www.c-sharpcorner.com/article/splitting-pdf-file-in-c-sharp-using-itextsharp/ i got a routine which add page number.

If you sign the paychecks, you can just tell everyone to use the new bug-tracking system But this may not be the most effective option Telling programmers what to do has frequently been referred to as herding cats, and it is just about as effective Instead, start using FogBugz yourself Put in some bugs or feature requests (if you don t know enough about your own company s products to make sensible feature requests, why are you in charge ) Then you can suggest to people that they d better keep an eye on the system if they don t want to lose your valuable input This will usually get through If you re a manager, and nobody seems to be using FogBugz, start assigning new features to your team using FogBugz.

The output from the tests shows that regardless of the memory allocation method, we get the same results: ReturnAStruct results: 1, 59, 11 ReturnCoMemStruct results: 1, 59, 11 Press any key to exit

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How to convert PDF to Jpeg in C# - YouTube
Nov 18, 2012 · PDF Focus.Net - How to convert PDF to Jpeg using C# and VB.Net.Duration: 2:57 Posted: Nov 18, 2012

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The Processing programming language (www.processing.org) that is used elsewhere in this book including the Oscilloscope / Logic Analyzer project in 11 could be used to create a visual frontend for your sensors, reading values sent via the serial port and updating a plan of your house to show which sensors have been tripped. The Touch Control Panel project in 8 uses a very similar system to indicate which hot zones on a touch screen have been touched, and the Processing code for that project could be easily adapted to show current sensor status.

See recipes 2-1 (Passing Structures) and 1-11 (Freeing Unmanaged Memory).

An unmanaged function requires a large structure as an input parameter; however, you are concerned with only one or two fields in the structure. You need a way to pass a partially defined structure to the function.

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Splitting a PDF from .NET (C# Code Provided) - DynamicPDF
May 22, 2012 · We get a decent amount of people who ask us about dynamically splitting a PDF. Splitting a PDF document using DynamicPDF Merger for .

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Split PDF into Multiple PDFs using a Range of Pages in C#, VB.NET
Splitting a multi-page PDF into single pages is perfectly supported by Spire.PDF. However, it's more common that you may want to extract selected range of ...

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