cvNamedwindow不能在ubuntu上的eclipse上的opencv中工作11.10

Question

这是显示AVI视频的代码片段，它的工作原理。

int main(int argc, char** argv) { 

// cvNamedWindow(“Example2”, CV_WINDOW_AUTOSIZE); 

CvCapture* capture = cvCreateFileCapture("video.avi"); 
IplImage* frame; 

while(1) { 

    frame = cvQueryFrame(capture); 
    if(!frame) break; 
    cvShowImage("Example2", frame); 
    char c = cvWaitKey(33); 
    if(c == 27) break; 

} 

cvReleaseCapture(&capture); 
cvDestroyWindow("Example2"); 

return 0; 
} 

但是，当我从第二行删除注释//时，它不起作用。我得到的错误是：

Invoking: GCC C Compiler 
gcc -I/usr/include/opencv -O0 -g3 -Wall -c -fmessage-length=0 -MMD -MP -MF"main.d" -MT"main.d" -o"main.o" "../main.c" 
../main.c: In function ‘main’: 
../main.c:5:5: error: stray ‘\342’ in program 
../main.c:5:5: error: stray ‘\200’ in program 
../main.c:5:5: error: stray ‘\234’ in program 
../main.c:5:5: error: stray ‘\342’ in program 
../main.c:5:5: error: stray ‘\200’ in program 
../main.c:5:5: error: stray ‘\235’ in program 
../main.c:5:23: error: ‘Example2’ undeclared (first use in this function) 
../main.c:5:23: note: each undeclared identifier is reported only once for each function it appears in 
make: *** [main.o] Error 1 

'Example2'怎么样未申明？ cvNamedwindow是否应该完成这项工作？

Answer 1

cvNamedWindow(“Example2”, CV_WINDOW_AUTOSIZE); 

这些是一些严重有趣的引语。尝试用标准引号替换它们："并重新编译。