Everyone a great god, and I'm pure white, self-study want to do something they are playing with,
I made the interface of the single document scroll the scroll bar, set up a left click, LBottonDown after running the program, if you do not move the scroll bar, click the function can be achieved, but moving the scroll bar, the function of the left and the should be the problem of coordinate, my way of mapping is MM_TEXT, could you tell me how to solve this?
Each system is too difficult from zero self-study