A borderless Qt instance

Implement a Qt program with an image border as the window border. You can drag it with the left mouse button and right-click it to launch the program. This program has three files: shapewidget. h, shapewidget. cpp, and main. cpp. Custom header file:

STL function object

STL not only enables us to write complex code more easily and quickly, but also makes the written code both standard and highly optimized. Std: vector names; //... Std: sort (names. begin (), names. end ()); Another elegance of STL is that it is

Data structure C Language & amp; gt; 3 basic linked list & amp; gt; 3-9 Linked List with header nodes

A linked list with header nodes has a fictitious node. The first node in the linked list is actually the second node. # Include Struct llist{Int num;Struct llist * next;};Typedef struct llist node;Typedef node * llink; // Output node ValueVoid

Use C language to determine positive and negative integer features

For a given 32-bit integer, write a function. If this number is positive, 1 is returned. If it is negative,-1 is returned, if it is set to zero, zero is returned, and no condition is required to judge the branch jump statement. Here, a slight

C language process information

  1. # include 2. # include 3. # include 4. 5. # define MyAlloc (size) HeapAlloc (GetProcessHeap (), 0, size) 6. # define MyFree (lpMem) HeapFree (GetProcessHeap (), 0, lpMem) 7. 8. typedef struct _ PROCESS_INFO { 9. DWORD dwPid; 10. HANDLE

Qt encoding Style

  Qt encoding Style This is an overview of the coding practices we use when writing Qt code. Data is collected by mining Qt source code, forums, email lists, and collaboration with developers. Indent 4 spaces Space. Do not use TAB! Variable

Remote Injection Process in C Language

    1. # include 2. # include 3. # include 4. 5. BOOL LoadRemoteDll (DWORD dwProcessId, LPTSTR lpszLibName ); 6. DWORD EnablePrivilege (PCSTR name ); 7. BOOL GetProcessIdByName (LPSTR szProcessName, LPDWORD lpPID ); 8. 9. DWORD EnablePrivilege

Brk and sbrk.

  The main task of brk and sbrk is to map virtual memory to memory. In GNUC, the memory allocation is as follows: The virtual memory space accessible to each process is 3 GB. However, during program compilation, it is impossible or unnecessary to

C advanced programming-function pre-and post-call

  //////////////////////////////////////// //////////////////////////////////////// //////////////////////////////////////// /////////////////   Pass the test in linux gcc (submit if any Bug exists)   To use this code, you need to note the author:

Summary of MTK written test (2) -- C ++ return value optimization (RVO)

Question 2:I changed the question and used the Class X mentioned in the previous article. The Code is as follows: 1 class X2 {3 public:4 X () {cout 5 X (int a): I (a) {cout 6 ~ X () {cout 7 X (const X & x): I (x. I)8 {9 cout 10}11 X & operator ++ ()1

Summary of MTK test (1)

I am looking for a job this year. I ran to the MTK pen exam for the purpose of accumulating experience. The written test mainly covers C ++.Because C ++ has been used in development, and is familiar with the advanced features in C ++:

Use C to obtain the cpu usage, memory usage, and IO of processes

/** @ File* @ Brief statement of the Process statistics function* @ Author Zhang yaotong* @ Date 2009/05/03* @ Version 0.1**/# Ifndef PROCESS_STAT_H# Define PROCESS_STAT_H # Ifdef _ cplusplusExtern "C "{# Endif Typedef long int64_t;Typedef unsigned

Code Stream of Consciousness-the number of flowers (2)

Links in the previous sectionHtml> http://www.bkjia.com/kf/201105/92329.html 5. Prepare to write the qiongju () function.Because the problem to be solved requires time and the calculation object is 21 digits, it is not hard to imagine that this

I also want to learn C language-Chapter 14th: pointer and array

Partners! Let's continue to work on the subsequent part of the C pointer. Today we are going to learn about pointers and arrays. Yesterday, we learned how to install linux and how to open, save, and exit the emacs editor, as well as the most basic

Template Method Mode

PrefaceI believe that you have already learned a lot about the process of posting your resume. This time, I received an interview notice from XX and completed the interview. When I came back, the bird asked me how the food felt? The dish replied:

Implement dll injection into the explorer process

I wrote down a piece of code written by a small program and checked a lot of information.//// Implement dll injection to the explorer process code by LengF 2011-5-3//# Include # Include // Declare the header file of the snapshot

Mine clearance plug-in

Author: hellotong88 (kiddie)   # Include   DWORD x = 0; DWORD m = 0, n = 0; DWORD addr_a = 0x1005361, addr_ B = 0x1005361 + 29; BYTE buffer = 0; BYTE mark = 142;   Int main () { HWND hWnd =: FindWindow ("mine clearance", NULL ); :

Day 4: Arrays and Strings

Array Fixed number of elements of the same type stored sequentially in memoryInitialization, or unexpected resultsArrays are passed by referenceMultidimen1_arrays are merely an unsupported action for programmers, as all the elements in the array are

Use C language to build a virtual machine framework

1. First, we need a structure to indicate all 16-bit and 8-bit registers of the CPU. 1 # pragma once2 # include "... CommonBase. h"34 struct Register_16_Bit5 {6 // General Register7 struct8 {9 byte ah; // 8Bit10 byte al; // 8Bit11} AX;12 struct13 {14

C language preprocessing function-about stringization and symbol pasting

  In C language development, macro definition is a very useful tool that makes our code easier to understand and maintain. If a constant is used in multiple places and may be modified according to different needs in the future, it would be better to

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