I just contact with c + + tutorial OnLButtonDown function in the class wizard example wrote a line of code, but no response after the left mouse button click, what is this?
For we know

CodePudding user response:

Neither the double colon, nor enough parameters, can also compile success, that is not in the calling API, you can only own debugging,

CodePudding user response:

reference 1st floor forever74 response:

neither double colon, there are not enough parameters, can also compile success, that is not in the calling API, you can only own debugging,

Ha ha, this is in a Dally with the rhythm of the compiler, want to fool the compiler, the results have also been cheated by the compiler,,

CodePudding user response:

Is this your document view project, must be in a view point on the left!

CodePudding user response:

I'm new to c + +,, could you tell me the vs2019 view is which?

CodePudding user response:

Come up to the MFC, a have basis