C # calls the DLL API that returns a string of values, crashes in debug mode

The API return values for a piece are all string types, considering that managed pointer debugging for C # in vs2012 may have changed. So change the return value type to INTPTR, after calling the API, the return value is converted to a string with

Code for dynamically merging cells in C ++ datagri

The effect is shown in the following figure. The same data can be merged into a cell.My datagridview data source is bound to the database tutorial by dragging and dropping dataset on the graphical interface./// /// Merge rows with the same

How to use the c ++ substr () character function

Str. substr (startpos, length );Startpos is the sequence number of the starting character, and length is the string length (includingStartpos ).UseStr. substr (m, n-m ); # Include # Include Using namespace std;Main (){String s ("12345 asdf ");String

Source code for identifying QQ verification codes (C #/NET1.1)

Source code for identifying QQ verification codes (C #/NET1.1)Using System;Namespace QQ{/// /// Summary of yzm./// Public class yzm{Public yzm (public System. Drawing. Bitmap pic){This. bp = pic;}/// /// Store an int value into a 4-byte array

A simple screen saver written in C #

Use a tray to control the c # implementation of windows services

The vb code provided by Chapter e of Mencius is now translated from this code into c # for reference by people who are used to c #.Note that the image must be in ico format. Otherwise, the tray may not be displayed.Using System;Namespace

How to use C # to generate a Chinese character verification code

When I applied for a free QQ number a few days ago, I suddenly found that the content of the verification code in the application form was changed to Chinese. This really surprised me. The cats on the Moper scolded Tencent for using the Chinese

Use C # to write some tips in the vs plug-in

Recently, I used C # to write a vs plug-in. The main function is to insert standard comment segments and some common code segments. During the development process, I encountered some problems, read some materials, and did some research. Here we will

Use C # to generate PDF documents

Using System;Using System. IO;Using System. Text;Using System. Collections; Namespace generator{  Public class extends generator{ Static float pageWidth = 594.0f;Static float pageDepth = 828366f;Static float pageMargin = 30366f;Static float fontSize

Implementation of DES encryption algorithm in C #

This program has two parts: the first part is the main program, and the other part is the function library.In this program, int [] is used to represent the binary form of char, for example, convert a character = int [8}The following sub-program is

C # XML operations: create XML (3)

outrace

C # source code for recursive enumeration arrangement and combination

This is something I wrote with VS7 beta in 2001. Now it does not look very naive... The advantage is that it can still run :). When I see a friend on CSDN asking for the C # code, I am not simple or ugly. (Converted to VS03 project)Combinatorics. cs

C # A thumbnail generation program

  If (fileupload. PostedFile! = Null)     {     // Addto is the attribute to be added, and aboutfile is the file description.String nam = fileupload. PostedFile. FileName;// Obtain the index of the last "." in the file name (including the path)Int I

Rapid development of vs.net + c # programs (-)

1. Existing database (SQL) tables to quickly generate tools for corresponding stored procedures. SQLPilot.exeSQLPilot.exe this program is written by a friend of CCF, please refer to the http://bbs.et8.net/bbs/showthread.php? T = 534183II. Tools for

C # write database operations!

For some reason, the database software on which the software depends will change! If the opening and Operation Code of the database appear on each page, it will be quite troublesome to modify the code after the database software is changed.

UBB (c # full version)

Recently I started to use c # as a forum. I found it online. Although there are conversion codes for ubb (c #), they are not comprehensive, I want to share it with you.If you have any questions, please contact me at my personal Forum [url =

C # Simple remote command program

Private void button#click (object sender, System. EventArgs e) {ConnectionOptions opt = new ConnectionOptions ();Opt. Username = UserBox. Text;Opt. Password = PassBox. Text;ManagementScope scope = new ManagementScope ("\" + IPbox. Text +

C # interaction with uncontrolled statements

Using System;Using System. Runtime. InteropServices;Namespace FastCSharp{Class Class1 { [STAThread]Unsafe static void Main (string [] args) {// ComInvoke ();// HelloWorld ();// StructInvoke ();// ClassInvode ();// PointerInvoke ();UnsafeMethod ();

Use C # to implement Des encryption and decryption

Using System;Using System. IO;Using System. Security. Cryptography;Namespace Vavic{/// /// Security summary./// Public class Security {Const string KEY_64 = "VavicApp ";Const string IV_64 = "VavicApp"; // note that it is 8 characters long and

[C #] how to end the Excel process

Many people often see posts on how to end the Excel process in forums.The method is to first obtain the system process list, and then match "Excel", which is ExcelThe process is killed, I personally think this method is not feasible, if the software

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