help me out on opencv

[C++]

i m using dev c++ for opencv i got problems in displaying image here is the code #include "cv.h" #include “highgui.h” int main( int argc, char** argv ) { IplImage* img = cvLoadImage( "M.jpg"); cvNamedWindow( “Example1”, CV_WINDOW_AUTOSIZE ); cvShowImage( “Example1”, img );