LNK2019具有我的命名空间中的功能

时间：2015-02-08 16:36:38

标签： c++ qt linker namespaces

Error info

我试图阅读其他人的LNK2019错误示例，但它们与我的情况不符。它困扰了我2个小时，不知道该怎么做。

kbam_emu和pixel_check是我的命名空间。背后的名字是我的功能。它们在“kbam_emu.h”，“kbam_emu.cpp”，“pixel_check.h”和“pixel_check.cpp中声明“分别：

“kbam_emu.h” 

/*
  Name: keyboard and mouse emulation
  Copyright: -
  Author: Samuel YKC
  Date: 15/11/14 20:17
  Description: This header file is designed for creating bots. The essential codes for keyboard and mouse input are written by 
  a programmer on the Internet with the user name 'Muted'. Thanks, Muted. Here is the address for his original post: 
               http://forum.codecall.net/topic/45292-c-keyboardmouse-emulation/
*/

#ifndef _KBAM_EMU_H_
#define _KBAM_EMU_H_

#include <string>
#include <sstream>
#include <ctype.h>
#include <windows.h>
#include <winable.h>

using namespace std;

namespace kbam_emu
{
    enum mouse_button{ left, middle, right };

    void GenerateKey(int vk, BOOL bExtended);
    void GenerateLine(string line);
    void Click(const int X, const int Y, mouse_button button = left);
    void Drag(const int X, const int Y, const int X2, const int Y2);
}

#endif

“kbam_emu.cpp” 

#include <kbam_emu.h>

/* This is a function to simplify usage of sending keys */
void kbam_emu::GenerateKey(int vk, BOOL bExtended)
{
    KEYBDINPUT  kb = {0};
    INPUT       Input = {0};

    /* Generate a "key down" */
    if (bExtended) { kb.dwFlags  = KEYEVENTF_EXTENDEDKEY; }
    kb.wVk  = vk;
    Input.type  = INPUT_KEYBOARD;
    Input.ki  = kb;
    SendInput(1, &Input, sizeof(Input));

    /* Generate a "key up" */
    ZeroMemory(&kb, sizeof(KEYBDINPUT));
    ZeroMemory(&Input, sizeof(INPUT));
    kb.dwFlags  =  KEYEVENTF_KEYUP;
    if (bExtended) { kb.dwFlags |= KEYEVENTF_EXTENDEDKEY; }
    kb.wVk = vk;
    Input.type = INPUT_KEYBOARD;
    Input.ki = kb;
    SendInput(1, &Input, sizeof(Input));

    return;
}

/* This is a function to send a line containing English alphabets, numbers and spaces
   It assumes that the user does not have the Caps Lock turned on initailly */
void kbam_emu::GenerateLine(string line)
{
     stringstream is(line);
     char c;
     while(is.get(c))
     {
         if(isupper(c))
         {
             GenerateKey(VK_CAPITAL, TRUE); //Caps Lock on
             GenerateKey(c, FALSE);
             GenerateKey(VK_CAPITAL, TRUE); //Caps Lock off
         }
         else
         {
             GenerateKey(toupper(c), FALSE);
         }
     }
     return;
}

/* This is a function to click somewhere on the screen */
void kbam_emu::Click(const int X, const int Y, mouse_button button)
{
    SetCursorPos(X, Y);

    DWORD down;
    DWORD up;

    switch(button)
    {
        case left:
            down = MOUSEEVENTF_LEFTDOWN;
            up = MOUSEEVENTF_LEFTUP;
            break;
        case middle:
            down = MOUSEEVENTF_MIDDLEDOWN;
            up = MOUSEEVENTF_MIDDLEUP;
            break;
        case right:
            down = MOUSEEVENTF_RIGHTDOWN;
            up = MOUSEEVENTF_RIGHTUP;
            break;
    }

    INPUT Input[2];
    ZeroMemory(Input, sizeof(INPUT) * 2);
    Input[0].type = INPUT_MOUSE;
    Input[0].mi.dwFlags = down;

    Input[1].type = INPUT_MOUSE;
    Input[1].mi.dwFlags = up;
    SendInput(2, Input, sizeof(INPUT));

    return;
}

void kbam_emu::Drag(const int X, const int Y, const int X2, const int Y2)
{
    SetCursorPos(X, Y);

    INPUT Input[1];
    ZeroMemory(Input, sizeof(INPUT));
    Input[0].type = INPUT_MOUSE;
    Input[0].mi.dwFlags = MOUSEEVENTF_LEFTDOWN;
    SendInput(1, Input, sizeof(INPUT));

    SetCursorPos(X2, Y2);

    INPUT Input2[1];
    ZeroMemory(Input2, sizeof(INPUT));
    Input2[0].type = INPUT_MOUSE;
    Input2[0].mi.dwFlags = MOUSEEVENTF_LEFTUP;
    SendInput(1, Input2, sizeof(INPUT));

    return;
}

“pixel_check.h” 

/*
  Name: pixel check
  Copyright: -
  Author: Samuel YKC
  Date: 16/11/14 00:26
  Description: This header file is designed for checking pixels. The essential codes for retrieving the color of a pixel 
  on screen are written by a programmer on the Internet with the user name 'templatetypedef'. Thanks, templatetypedef. Here 
  is the address for his original post: 
               http://stackoverflow.com/questions/4839623/getting-pixel-color-in-c
*/

#ifndef _PIXEL_CHECK_H_
#define _PIXEL_CHECK_H_

#include <windows.h>
#include "kbam_emu.h"

using namespace std;
using namespace kbam_emu;

namespace pixel_check
{
    COLORREF GetPixelColor(int x, int y);
    bool ComparePixelWithColor(int x, int y, COLORREF color);

    void SleepOnColor(int x, int y, COLORREF color, int interval=100);
    void SleepUntilColor(int x, int y, COLORREF color, int interval=100);

    void ClickUntilColor(int click_x, int click_y, int pixel_x, int pixel_y, COLORREF color, int interval=1000);
}

#endif

“pixel_check.cpp” 

#include "pixel_check.h"

COLORREF pixel_check::GetPixelColor(int x, int y)
{
    HDC dc = GetDC(NULL);
    COLORREF color = GetPixel(dc, x, y);
    ReleaseDC(NULL, dc);

    return color;
}

bool pixel_check::ComparePixelWithColor(int x, int y, COLORREF color)
{
    HDC dc = GetDC(NULL);
    COLORREF pixel_color = GetPixel(dc, x, y);
    ReleaseDC(NULL, dc);

    return (pixel_color==color);
}

void pixel_check::SleepOnColor(int x, int y, COLORREF color, int interval)
{
    while(ComparePixelWithColor(x,y,color)) Sleep(interval);
}

void pixel_check::SleepUntilColor(int x, int y, COLORREF color, int interval)
{
    while(!ComparePixelWithColor(x,y,color)) Sleep(interval);
}

void pixel_check::ClickUntilColor(int click_x, int click_y, int pixel_x, int pixel_y, COLORREF color, int interval)
{
    while(!ComparePixelWithColor(pixel_x,pixel_y,color))
    {
        Click(click_x, click_y);
        Sleep(interval);
    }
}

在我的项目中，我把#include这样（我把.h＆amp; .cpp放在默认的include目录中，这样可以使用<>）：

#include <kbam_emu.h>
#include <pixel_check.h>

并以这种方式使用这些功能：

kbam_emu::Click(0, 0);

最后，在.pro文件中我添加了这一行：

LIBS += -lkernel32 -luser32 -lgdi32 -lwinspool -lcomdlg32 -ladvapi32 -lshell32 -lole32 -loleaut32 -luuid -lodbc32 -lodbccp32

我认为我所做的一切都是合乎逻辑的。仍然，链接器打赌不同。我试图在这里发布完整的代码，这样我就不会错过任何东西。有谁知道出了什么问题？

1 个答案:

答案 0 :(得分：0)

在我连续几天不停地尝试之后，我意外地找到了解决方案。

我这次将文件放入项目而不是默认的 \ include 目录。然后，我点击按钮＆＃34;运行qmake＆＃34;在Qt和那些kbam_emu.obj＆amp;最终创建之前尚未创建的pixel_check.obj。现在没有更多的链接器问题了！

我认为这可能是关于makefile没有自动更新所以我需要手动给qt运行qmake指令。希望我的案子对你们有所帮助。

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