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how to convert the first page of pdf to thumbnail image - MSDN ...
May 4, 2013 · how to create the first page of the pdf file to thumb nail image ... .com/Articles/5887/Generate-Thumbnail-Images-from-PDF-Documents.

The _MANAGED preprocessor macro can be used to write conditional code based on the presence or absence of the /clr compiler option, for example: #ifdef _MANAGED //this code is compiled if /clr is set #else //this code is compiled if /clr is not set #endif This code allows you to write one set of shared code that can be compiled in managed and native C++ environments. Only the code that is appropriate for each environment will be included when the source is compiled. Visual C++ has built-in compiler support that helps you to determine various traits about a type. For example, this code checks the CMyClass class to determine if it is an unmanaged class or struct: if (__is_class(CMyClass)) { //class is unmanaged so do something } This code checks if the type is a managed class: if (__is_ref_class(CMyClass)) { //class is unmanaged so do something } A fairly large number of these built-in checks can be used to determine various traits of a type. Some other examples are as follows: __has_copy checks for a copy constructor. __is_abstract checks if the type is abstract. __is_delegate checks if the type is a delegate. __is_base_of determines if the type is derived from another specified type. Note that all these checks begin with a double underscore. For the complete list, please consult the full Microsoft documentation.

byte bValidBit = false; If the captured period is outside the expected range it s probably noise, so the rest of the processing is only performed if the range is acceptable. if( (uiICP_CapturedPeriod >= WSR_PERIOD_FILTER_MIN) && (uiICP_CapturedPeriod <= WSR_PERIOD_FILTER_MAX) ) { It then checks if this is a valid 0 (long high) or 1 (short high) bit, or an invalid period in between. if( bICP_CapturedPeriodWasHigh ) { if( (uiICP_CapturedPeriod >= WSR_SHORT_PERIOD_MIN) && (uiICP_CapturedPeriod <= WSR_SHORT_PERIOD_MAX) ) { bValidBit = WSR_BIT_ONE; } else if( (uiICP_CapturedPeriod >= WSR_LONG_PERIOD_MIN) && (uiICP_CapturedPeriod <= WSR_LONG_PERIOD_MAX) ) { bValidBit = WSR_BIT_ZERO; } else { If the code got to this point, it must be an invalid period in the dead zone between short and long bit period lengths, so the program assumes it s just seeing noise and calls the reset macro to set everything back to a default state and start waiting for the next bit transition to arrive. WSR_RESET(); } } The program then enters a little state machine to load and prepare the incoming bits into a potentially complete packet, performing different actions depending on the current state. if( bValidBit != false ) { switch( bICP_WSR_State ) { case WSR_STATE_IDLE: { if( bValidBit == WSR_BIT_ZERO ) { A good La Crosse bitstream packet always starts with a 0 bit, so if the sketch receives a 0 while the state machine is idle and still waiting for a good packet start, it loads the bit into the packet data buffer, increments the input bit pointer, and moves on to the next state to continue loading the rest of the potentially good packet. bICP_WSR_PacketData[bICP_WSR_PacketInputPointer][bICP_WSR_PacketInputBitPointer >> 3] &= ~(0x01 << (bICP_WSR_PacketInputBitPointer&0x07)); bICP_WSR_PacketInputBitPointer++; bICP_WSR_State = WSR_STATE_LOADING_BITSTREAM; } else { WSR_RESET(); } break; } case WSR_STATE_LOADING_BITSTREAM: {

generate pdf thumbnail c#

GitHub - lmorelato/ pdf - thumbnail : C# tool for generating image ...
C# tool for generating image thumbnails from pdf files - lmorelato/ pdf - thumbnail . ... C# . Branch: master. New pull request. Find File. Clone or download ...

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convert . pdf file to thumbnail view - CodeProject
final BufferedImage PNG = getScaledInstance( PDF , ... It works for ASP, VB, C# etc. GhostScript ... <tc: thumbnail path=" PDFThumbnail . pdf "

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