opencv3.2.0 Cmake 3.8.0 TDM-GCC 5.1.0
Windows 7 遇到如下错误
[ 53%] Building CXX object modules/world/CMakeFiles/opencv_world.dir/__/videoio/
src/cap_ffmpeg.cpp.obj
D:Resourceopencvsourcesmodulesvideoiosrccap_ffmpeg.cpp:65:42: warning: ty
pe qualifiers ignored on function return type [-Wignored-qualifiers]
static const HMODULE cv_GetCurrentModule()
^
[ 53%] Building CXX object modules/world/CMakeFiles/opencv_world.dir/__/highgui/
src/window.cpp.obj
[ 53%] Building CXX object modules/world/CMakeFiles/opencv_world.dir/__/highgui/
src/window_w32.cpp.obj
D:Resourceopencvsourcesmoduleshighguisrcwindow_w32.cpp:51:6: warning: "_W
IN32_IE" is not defined [-Wundef]
#if (_WIN32_IE < 0x0500)
^
D:Resourceopencvsourcesmoduleshighguisrcwindow_w32.cpp:52:99: note: #prag
ma message: WARNING: Win32 UI needs to be compiled with _WIN32_IE >= 0x0500 (_WI
N32_IE_IE50)
#pragma message("WARNING: Win32 UI needs to be compiled with _WIN32_IE >= 0x050
0 (_WIN32_IE_IE50)")
^
D:Resourceopencvsourcesmoduleshighguisrcwindow_w32.cpp: In function 'void
cvSetModeWindow_W32(const char*, double)':
D:Resourceopencvsourcesmoduleshighguisrcwindow_w32.cpp:474:47: error: 'MO
NITOR_DEFAULTTONEAREST' was not declared in this scope
hMonitor = MonitorFromRect(&rect, MONITOR_DEFAULTTONEAREST);
^
D:Resourceopencvsourcesmoduleshighguisrcwindow_w32.cpp:474:71: error: 'Mo
nitorFromRect' was not declared in this scope
hMonitor = MonitorFromRect(&rect, MONITOR_DEFAULTTONEAREST);
^
D:Resourceopencvsourcesmoduleshighguisrcwindow_w32.cpp: In function 'LRES
ULT MainWindowProc(HWND, UINT, WPARAM, LPARAM)':
D:Resourceopencvsourcesmoduleshighguisrcwindow_w32.cpp:1377:45: error: 'M
ONITOR_DEFAULTTONEAREST' was not declared in this scope
hMonitor = MonitorFromRect(&rect, MONITOR_DEFAULTTONEAREST);
^
D:Resourceopencvsourcesmoduleshighguisrcwindow_w32.cpp:1377:69: error: 'M
onitorFromRect' was not declared in this scope
hMonitor = MonitorFromRect(&rect, MONITOR_DEFAULTTONEAREST);
^
D:Resourceopencvsourcesmoduleshighguisrcwindow_w32.cpp: In function 'LRES
ULT HighGUIProc(HWND, UINT, WPARAM, LPARAM)':
D:Resourceopencvsourcesmoduleshighguisrcwindow_w32.cpp:1549:24: warning:
left operand of comma operator has no effect [-Wunused-value]
} while (0,0); // (0,0) instead of (0) to avoid MSVC compiler warni
ng C4127: "conditional expression is constant"
^
modulesworldCMakeFilesopencv_world.diruild.make:4678: recipe for target 'mo
dules/world/CMakeFiles/opencv_world.dir/__/highgui/src/window_w32.cpp.obj' faile
d
mingw32-make[2]: *** [modules/world/CMakeFiles/opencv_world.dir/__/highgui/src/w
indow_w32.cpp.obj] Error 1
CMakeFilesMakefile2:2324: recipe for target 'modules/world/CMakeFiles/opencv_wo
rld.dir/all' failed
mingw32-make[1]: *** [modules/world/CMakeFiles/opencv_world.dir/all] Error 2
Makefile:161: recipe for target 'all' failed
mingw32-make: *** [all] Error 2
在mingw的头文件commctrl.h中，对于上面的变量宏的定义实际上是由_WIN32_IE是否定义来决定的，然而我们找到这个头文件的时候，他的写法是这样：
#include <prsht.h>
#ifdef __cplusplus
extern "C" {
#endif
#ifndef _WIN32_IE
/* define _WIN32_IE if you really want it */
#if 0
#define _WIN32_IE 0x0300
#endif
#endif
可更改为
#include <prsht.h>
#ifdef __cplusplus
extern "C" {
#endif
#ifndef _WIN32_IE
/* define _WIN32_IE if you really want it */
#if 1
#define _WIN32_IE 0x0500
#endif
#endif
或
#if 1 #define _WIN32_IE 0x0300 #endif
在opencv 3.2.0 源码中 opencvsourcesmoduleshighguisrcwindow_w32.cpp
#if (_WIN32_IE < 0x0500)
#pragma message("WARNING: Win32 UI needs to be compiled with _WIN32_IE >= 0x0500 (_WIN32_IE_IE50)")
#define _WIN32_IE 0x0500
#endif
另外在windows 7中
C:Program FilesMicrosoft SDKsWindowsv7.1Includesdkddkver.h
有相关内容
// _WIN32_WINNT version constants // #define _WIN32_WINNT_NT4 0x0400 #define _WIN32_WINNT_WIN2K 0x0500 #define _WIN32_WINNT_WINXP 0x0501 #define _WIN32_WINNT_WS03 0x0502 #define _WIN32_WINNT_WIN6 0x0600 #define _WIN32_WINNT_VISTA 0x0600 #define _WIN32_WINNT_WS08 0x0600 #define _WIN32_WINNT_LONGHORN 0x0600 #define _WIN32_WINNT_WIN7 0x0601 // // _WIN32_IE_ version constants // #define _WIN32_IE_IE20 0x0200 #define _WIN32_IE_IE30 0x0300 #define _WIN32_IE_IE302 0x0302 #define _WIN32_IE_IE40 0x0400 #define _WIN32_IE_IE401 0x0401 #define _WIN32_IE_IE50 0x0500 #define _WIN32_IE_IE501 0x0501 #define _WIN32_IE_IE55 0x0550 #define _WIN32_IE_IE60 0x0600 #define _WIN32_IE_IE60SP1 0x0601 #define _WIN32_IE_IE60SP2 0x0603 #define _WIN32_IE_IE70 0x0700 #define _WIN32_IE_IE80 0x0800
引用自：http://www.cnblogs.com/lhyz/p/4621987.html
http://code.opencv.org/issues/4087