c++如何让一个东西跟着鼠标走

Question

就像scrach那样，一道鼠标位置，怎么办/?(T_T)要用c++来完成，不用图形库

Answer 1

WM_MOUSEMOVE message (Winuser.h) - Win32 apps | Microsoft Docs Posted to a window when the cursor moves. If the mouse is not captured, the message is posted to the window that contains the cursor. Otherwise, the message is posted to the window that has captured the mouse. https://docs.microsoft.com/en-us/windows/win32/inputdev/wm-mousemove

GetCursorPos function (winuser.h) - Win32 apps | Microsoft Docs Retrieves the position of the mouse cursor, in screen coordinates. https://docs.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-getcursorpos

SetWindowPos function (winuser.h) - Win32 apps | Microsoft Docs Changes the size, position, and Z order of a child, pop-up, or top-level window. These windows are ordered according to their appearance on the screen. The topmost window receives the highest rank and is the first window in the Z order. https://docs.microsoft.com/zh-cn/windows/win32/api/winuser/nf-winuser-setwindowpos