8

我想在 iPhone 中注入触摸事件。我通过网络套接字获取触摸事件的坐标。GSSendEvent 似乎是不错的选择。但是，它需要 GSEventRecord 作为输入之一。

有谁知道如何准备 GSEventRecord？我根据一些示例准备了它，但是在 GSSendEvent 调用后应用程序崩溃了。

感谢任何帮助。

-(void) handleMouseEventAtPoint:(CGPoint) point
{
static mach_port_t port_;

// structure of touch GSEvent
struct GSTouchEvent {
    GSEventRecord record;
    GSHandInfo    handInfo;
} ;

struct GSTouchEvent *touchEvent = (struct GSTouchEvent *) malloc(sizeof(struct GSTouchEvent));

bzero(touchEvent, sizeof(touchEvent));

// set up GSEvent
touchEvent->record.type = kGSEventHand;
touchEvent->record.windowLocation = point;
touchEvent->record.timestamp = GSCurrentEventTimestamp();
touchEvent->record.infoSize = sizeof(GSHandInfo) + sizeof(GSPathInfo);
touchEvent->handInfo.type = getHandInfoType(0, 1);
touchEvent->handInfo.pathInfosCount = 1;
bzero(&touchEvent->handInfo.pathInfos[0], sizeof(GSPathInfo));
touchEvent->handInfo.pathInfos[0].pathIndex     = 1;
touchEvent->handInfo.pathInfos[0].pathIdentity  = 2;
touchEvent->handInfo.pathInfos[0].pathProximity = 1 ? 0x03 : 0x00;
touchEvent->handInfo.pathInfos[0].pathLocation  = point;

port_ = GSGetPurpleSystemEventPort();

GSSendEvent((GSEventRecord*)touchEvent ,port_);


}
static GSHandInfoType getHandInfoType(int touch_before, int touch_now){
if (!touch_before) {
    return (GSHandInfoType) kGSHandInfoType2TouchDown;
}
if (touch_now) {
    return (GSHandInfoType) kGSHandInfoType2TouchChange;
}
return (GSHandInfoType) kGSHandInfoType2TouchFinal;
}
4

2 回答 2

6

仅在 iOS 6 上测试

你实际上是在正确的轨道上。问题是您必须弄清楚应该为这些变量分配什么值。

首先，您需要导入 GraphicsServices.h。然后，您可以使用您可以从如何找到 IOS 5 及更高版本中最前面的应用程序的紫色端口中获得的端口尝试以下代码？.

我不是 iOS 专家，Apple 没有提供任何文档，所以我无法解释这里发生了什么。（它碰巧对我来说很好用。）

无论如何，您可以使用 xcode 调试模式来使用它来查看引擎盖下会发生什么。

struct GSTouchEvent * touchEvent = (struct GSTouchEvent*) &gsTouchEvent;
bzero(touchEvent, sizeof(touchEvent));
touchEvent->record.type = kGSEventHand;
touchEvent->record.subtype = kGSEventSubTypeUnknown;
touchEvent->record.location = point;
touchEvent->record.windowLocation = point;
touchEvent->record.infoSize = sizeof(GSHandInfo) + sizeof(GSPathInfo);
touchEvent->record.timestamp = GSCurrentEventTimestamp();
touchEvent->record.window = winRef;
touchEvent->record.senderPID = 919;
bzero(&touchEvent->handInfo, sizeof(GSHandInfo));
bzero(&touchEvent->handInfo.pathInfos[0], sizeof(GSPathInfo));
GSHandInfo touchEventHandInfo;
touchEventHandInfo._0x5C = 0;
touchEventHandInfo.deltaX = 0;
touchEventHandInfo.deltaY = 0;
touchEventHandInfo.height = 0;
touchEventHandInfo.width = 0;
touchEvent->handInfo = touchEventHandInfo;
touchEvent->handInfo.type = handInfoType;
touchEvent->handInfo.deltaX = 1;
touchEvent->handInfo.deltaY = 1;
touchEvent->handInfo.pathInfosCount = 0;
touchEvent->handInfo.pathInfos[0].pathIndex = 1;
touchEvent->handInfo.pathInfos[0].pathIdentity = 2;
touchEvent->handInfo.pathInfos[0].pathProximity = (handInfoType == kGSHandInfoTypeTouchDown || handInfoType == kGSHandInfoTypeTouchDragged || handInfoType == kGSHandInfoTypeTouchMoved) ? 0x03: 0x00;
touchEvent->handInfo.x52 = 1;
touchEvent->handInfo.pathInfos[0].pathLocation = point;
touchEvent->handInfo.pathInfos[0].pathWindow = winRef;
GSEventRecord* record = (GSEventRecord*) touchEvent;
record->timestamp = GSCurrentEventTimestamp();
GSSendEvent(record, port);

要使用此代码，您必须多次调用它。对于一键式，有触地、触拖和触上。

另请注意，当触摸向上时 pathProximity 为 0。

据我记得，winRef 无关紧要。

希望这可以帮助。

编辑：根据 Bugivore 的评论，问题是：

我通过 malloc 分配 touchEvent 的方式是错误的。应该按照 EntryLevelDev 显示的那样完成 - “static uint8_t handJob[sizeof(GSEventRecord) + sizeof(GSHandInfo) + sizeof(GSPathInfo)];”

于 2013-04-24T02:08:50.353 回答
3

EntryLevelDev 的回答是正确的，但有些价值并不那么重要。我从其他地方得到了以下代码，并做了一些尝试和错误，这是我的代码（适用于最新的 ios6）。

现在有人在为 IOS7 做这个吗？我无法让它工作。在此处查看我的帖子：在 IOS7 中不推荐使用 GraphicsServices 中的 GSCopyPurpleNamedPort(appId) 时，替代方法是什么？

static int prev_click = 0;

if (!click && !prev_click)
{
    //which should never enter
    NSLog(@"***error, postHandEvent cancel");
    return;
}

CGPoint location = CGPointMake(x, y);

struct GSTouchEvent {
    GSEventRecord record;
    GSHandInfo    handInfo;
} * event = (struct GSTouchEvent*) &touchEvent;
bzero(touchEvent, sizeof(touchEvent));

event->record.type = kGSEventHand;
event->record.windowLocation = location;
event->record.timestamp = GSCurrentEventTimestamp();
//NSLog(@"Timestamp GSCurrentEventTimestamp: %llu",GSCurrentEventTimestamp());
event->record.infoSize = sizeof(GSHandInfo) + sizeof(GSPathInfo);
event->handInfo.type = getHandInfoType(prev_click, click);

//must have the following line
event->handInfo.x52 = 1;

//below line is for ios4
//event->handInfo.pathInfosCount = 1;


bzero(&event->handInfo.pathInfos[0], sizeof(GSPathInfo));
event->handInfo.pathInfos[0].pathIndex     = 2;
//following 2 lines, they are by default
event->handInfo.pathInfos[0].pathMajorRadius = 1.0;
event->handInfo.pathInfos[0].pathPressure = 1.0;

//event->handInfo.pathInfos[0].pathIdentity  = 2;
event->handInfo.pathInfos[0].pathProximity = click ? 0x03 : 0x00;
//event->handInfo.pathInfos[0].pathProximity = action;
event->handInfo.pathInfos[0].pathLocation  = location;

// send GSEvent 
GSEventRecord *event1 = (GSEventRecord*) event;
sendGSEvent(event1);
于 2013-07-25T10:46:43.567 回答