GSSendEvent - 注入触摸事件iOS

Question

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？我根据一些例子准备了它,但是在GSSendEvent调用之后应用程序崩溃了.

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;
}

Answer 1

仅在iOS 6上测试过

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的值.

首先,您需要导入GraphicsServices.h.然后,您可以尝试使用以下代码来获取如何在IOS 5及更高版本中找到最前端应用程序的紫色端口？.

我不是iOS专家,Apple也没有提供任何文档,所以我无法解释这里发生了什么.(它恰好适合我.)

无论如何,你可以使用xcode调试模式来玩它,看看幕后发生了什么.

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.对于一个水龙头,有触摸,触摸拖动,然后触摸.

另请注意,触摸启动时pathProximity为0.

据我记忆,winRef并不重要.

希望这可以帮助.

编辑:从Bugivore的评论来看,问题是:

我通过malloc分配touchEvent的方式是错误的.它应该在EntryLevelDev显示时完成 - "static uint8_t handJob [sizeof(GSEventRecord)+ sizeof(GSHandInfo)+ sizeof(GSPathInfo)];"