我正在设置全局鼠标挂钩：
int taps = 1;
- (IBAction)btnActivate {
taps = taps + 1;
if (taps == 2){
[activateBtn setBackgroundColor:[UIColor grayColor]];
[self performSelector:@selector(tapOne:) withObject:self afterDelay:0.5];
}
else if (taps == 3){
[self performSelector:@selector(tapTwo:) withObject:self afterDelay:0];
[activateBtn setEnabled:NO];
[activateBtn setBackgroundColor:[UIColor redColor]];
} else {
//Do other things here if you want
}
}
- (void) tapOne: (id) sender{
if (taps == 2){
[self performSelector:@selector(afterTapDone:) withObject:self afterDelay:1];
} else {
}
}
- (void) tapTwo: (id) sender {
//Perform button actions here when user double taps
[self performSelector:@selector(afterTapDone:) withObject:self afterDelay:10];
}
- (void) afterTapDone: (id) sender {
taps = 1;
[activateBtn setEnabled:YES];
[activateBtn setBackgroundColor:[UIColor colorWithRed:0/255.0f green:174/255.0f blue:239/255.0f alpha:1.0f]];
[activateBtn setTitle:@"Activate"];
}
并挂钩所有鼠标移动消息并移动鼠标光标。
hMouseHook = SetWindowsHookEx(WH_MOUSE_LL, LLMouseProc, GetModuleHandle(0), 0);
如果比例因子为1.0，那么一切都很完美......好吧它是如何工作的。我们将鼠标移动到物理坐标[29,94]，比方说，我们的比例因子是1.5，因此逻辑坐标是[19,62]。我们打电话给
LRESULT CALLBACK LLMouseProc(int nCode, WPARAM wParam, LPARAM lParam)
{
LPMSLLHOOKSTRUCT lpmh = reinterpret_cast<LPMSLLHOOKSTRUCT>(lParam);
UINT nMsg = static_cast<UINT>(wParam);
POINT ptScreen = { 0 };
if (nCode >= 0)
{
ptScreen = lpmh->pt;
if (WM_MOUSEMOVE == nMsg)
{
// ptScreen coordinates we receiving are in physical units (pixels)
// convert them to logical
POINT logPos = { ptScreen.x, ptScreen.y };
ConvertPhysicalToLogical(&logPos);
// Move mouse cursor to the new position
// SetCursotPos() requires coordinates in logical units
SetCursorPos(logPos.x, logPos.y);
// We don't want to propagate this message
return 1L;
}
}
return 0L;
}
它触发发送WM_MOUSEMOVE并在某处内部将我们的逻辑坐标转换为物理19 * 1.5 = 28,62 * 1.5 = 93，所以我们的新输入坐标现在是[28,93]而不是[29,94]。现在我们重复所有内容，将[28,93]转换为逻辑[18,62]并调用
SetCursorPos(19, 62);
依旧......
所以，我知道从LLMouseProc调用SetCursorPos（）并不正确，我试图找到解决方案 - 有没有正确的方法呢？
P.S.＆GT; ClipCursor（）没有帮助，因为它也调用SetCursorPos（）
谢谢！