在此范围内未声明构建OpenCV :: MonitorFromRect时出错

Dip*_*pto 6 c++ opencv mingw build mingw32

我试图建立OpenCV version 2.4.8使用它CodeBlocksMinGw.我按照这里的说明进行操作.但是我得到了以下错误.我不知道如何解决它.我在网上搜索没有找到任何有用的东西.

也没有解决.

我不想弄乱openCV代码,我打算OpenCV在我的项目中使用,这是我第一次使用它.

[ 26%] Built target pch_Generate_opencv_highgui
[ 26%] Building CXX object modules/highgui/CMakeFiles/opencv_highgui.dir/src/window_w32.cpp.obj
C:\Program Files (x86)\opencv\sources\modules\highgui\src\window_w32.cpp: In function 'void cvSetModeWindow_W32(const char*, double)':
C:\Program Files (x86)\opencv\sources\modules\highgui\src\window_w32.cpp:477: error: 'MonitorFromRect' was not declared in this scope
C:\Program Files (x86)\opencv\sources\modules\highgui\src\window_w32.cpp: In function 'LRESULT MainWindowProc(HWND__*, UINT, WPARAM, LPARAM)':
C:\Program Files (x86)\opencv\sources\modules\highgui\src\window_w32.cpp:1355: error: 'MonitorFromRect' was not declared in this scope
mingw32-make.exe[2]: *** [modules/highgui/CMakeFiles/opencv_highgui.dir/src/window_w32.cpp.obj] Error 1
mingw32-make.exe[1]: *** [modules/highgui/CMakeFiles/opencv_highgui.dir/all] Error 2
mingw32-make.exe: *** [all] Error 2 
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我试图手动将该函数的原型包含在文件中,但后来又链接错误.
有谁请告诉我这里可能出了什么问题?我该如何解决?

Raj*_*har 10

看来最近提交的所有更改都没有反映在您的结帐中.要解决问题,请进行以下更改:

modules/highgui/src/precomp.hpp,添加+标记的行:

 #if defined WIN32 || defined WINCE
 +    #if !defined _WIN32_WINNT
 +        #ifdef HAVE_MSMF
 +            #define _WIN32_WINNT 0x0600 // Windows Vista
 +        #else
 +            #define _WIN32_WINNT 0x0500 // Windows 2000
 +        #endif
 +    #endif
 +
      #include <windows.h>
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然后modules/highgui/src/window_w32.cpp,删除-标记的行:

 #if defined WIN32 || defined _WIN32

 -#define COMPILE_MULTIMON_STUBS // Required for multi-monitor support
 -#ifndef _MULTIMON_USE_SECURE_CRT
 -#  define _MULTIMON_USE_SECURE_CRT 0 // some MinGW platforms have no strncpy_s
 -#endif
 -
 -#if defined SM_CMONITORS && !defined MONITOR_DEFAULTTONEAREST
 -#  define MONITOR_DEFAULTTONULL       0x00000000
 -#  define MONITOR_DEFAULTTOPRIMARY    0x00000001
 -#  define MONITOR_DEFAULTTONEAREST    0x00000002
 -#  define MONITORINFOF_PRIMARY        0x00000001
 -#endif
 -#ifndef __inout
 -#  define __inout
 -#endif
 -
  #ifdef __GNUC__
  #  pragma GCC diagnostic ignored "-Wmissing-declarations"
  #endif

  #include <commctrl.h>
 -#include <winuser.h>
  #include <stdlib.h>
  #include <string.h>
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这将解决构建错误.