Hi! Is there a simple method to determine whether the Shift key was pressed together with another one? For example, I want to do different actions on 'u' and 'U'.
waitKey returns the ASCII code for the letter. It is different for uppercase and lowercase letters.
char c = cv::waitKey();
if(c == 'u') {}
if(c == 'U') {}
I have similar problem, in my case, cvWaitKey does not really capture the difference between lower and upper case letters. A colleague told me that he solved this problem by compiling openCV from sources. I guess it might have smth to do with 64bit
I just tried it using build 2.4.3 and I received uppercase and lowercase letters as typed.
As i know key code return qt, not OpenCV, try to set it up, i have some strange result too at once.
Asked: 2012-11-17 06:13:08 -0600
Seen: 4,826 times
Last updated: Feb 13 '13
This might not be possible with opencv only on all platforms. Consider using another library (or win32/X11 API)