in fact, mCurX and mCurY are used to get the first coordinates when I click, and then I compare these coordinates to the player's coordinates. If these coordinates matches the clicked coordinates, the we can start to move the player. We have to click on the player in order to move him. While moving, I gather all the coordinates from where I pass with the mouse cursor, and once I release it the mouse button, I wand my player to move straight to the last pointed coordinates. I believe if I put mX and mY, which are the player's moving coordinates, in Action_move, then when I'll be moving the mouse, the player will be moving too at the same time....
I will try other things by the time, and if you have an idea, it's always good
Thanks again for your contribution!