C++ MOUSEEVENTF_MOVE 相对

Question

我正在尝试使用以下代码在屏幕上相对移动光标:

input.type = INPUT_MOUSE;
ZeroMemory(&input, sizeof(input));
input.mi.mouseData = 0;
input.mi.time = 0;
input.mi.dx = 20;
input.mi.dy = 20;
input.mi.dwExtraInfo = 0;
input.mi.dwFlags = MOUSEEVENTF_MOVE;
SendInput(1, &input, sizeof(input));

问题是，光标像这样移动(当前位置 | 新位置 [我使用“GetCursorPos()”函数获得坐标]):

0 0 | 41 41
41 41 | 108 108
108 108 | 174 174
174 174 | 241 241
241 241 | 307 307
307 307 | 374 374
374 374 | 441 441

有人可以帮我解决这个问题吗？

Answer 1

系统可能会合并鼠标移动，因为您没有指定 MOUSEEVENTF_MOVE_NOCOALESCE。

更重要的是，您正在指定原始鼠标移动，它可以由系统进行调整，如 the documentation 中所述。 .

Relative mouse motion is subject to the effects of the mouse speed and the two-mouse threshold values. [...] If the specified distance along either the x or y axis is greater than the first mouse threshold value, and the mouse speed is not zero, the system doubles the distance. If the specified distance along either the x or y axis is greater than the second mouse threshold value, and the mouse speed is equal to two, the system doubles the distance that resulted from applying the first threshold test. It is thus possible for the system to multiply specified relative mouse movement along the x or y axis by up to four times.