Question

c++ opencv setmousecallback是多线程吗

Answer 1

用CMake导opencv 源码VC++项目用vs打工程面搜索整工程
#define CV_EXTERN_C extern "C"
#define CV_IMPL void CV_EXTERN_C

CV_IMPL void
cvSetMouseCallback( const char* window_name, CvMouseCallback on_mouse, void* param )
{
CV_FUNCNAME( "cvSetMouseCallback" );

__BEGIN__;

CvWindow* window = 0;

if( !window_name )
CV_ERROR( CV_StsNullPtr, "NULL window name" );

window = icvFindWindowByName(window_name);
if( !window )
EXIT;

window->on_mouse = on_mouse;
window->on_mouse_param = param;

__END__;
}

Answer 2

回调，怎么说呢，像多线程的

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