감사합니다.

Windows 7이상

펜,터치 공용으로 동작 안될 수 있다.

WM_GESTURE나 WM_TOUCH를 사용할 수 있지만, 동시에 받을 수 는 없다.

WM_TOUCH를 받으려면, RegisterTouchWindow설정을 해주어야 한다.

RegisterTouchWindow를 설정해주면, WM_TOUCH 에세지를 받을 수 있다.

BOOL WINAPI GetTouchInputInfo(
  _In_  HTOUCHINPUT hTouchInput,
  _In_  UINT        cInputs,
  _Out_ PTOUCHINPUT pInputs,
  _In_  int         cbSize
);

//펜,터치 모두 동작하는 메세지. 윈도우8이상

//https://github.com/Nomad1/touchmouse/blob/master/trunk/TouchMouse/main.cpp

//https://social.msdn.microsoft.com/Forums/windowsdesktop/en-US/5aa943b8-f0f2-4287-ae10-9ae169bac0a5/how-to-send-redirected-touch-message-back-to-store-apps?forum=windowsaccessibilityandautomation

#define WM_POINTERDEVICECHANGE 0x0238 

#define WM_POINTERDEVICEINRANGE 0x0239 

#define WM_POINTERDEVICEOUTOFRANGE 0x023A 

#define WM_NCPOINTERUPDATE 0x0241 

#define WM_NCPOINTERDOWN 0x0242 

#define WM_NCPOINTERUP 0x0243 

#define WM_POINTERUPDATE 0x0245 

#define WM_POINTERDOWN 0x0246 

#define WM_POINTERUP 0x0247 

#define WM_POINTERENTER 0x0249 

#define WM_POINTERLEAVE 0x024A 

#define WM_POINTERACTIVATE 0x024B 

#define WM_POINTERCAPTURECHANGED 0x024C 

#define WM_TOUCHHITTESTING 0x024D 

#define WM_POINTERWHEEL 0x024E 

#define WM_POINTERHWHEEL 0x024F

EnableMouseInPointer

한번만 호출하며, 호출해야 WM_POINTER관련 메세지를 받을 수 있다.

WINAPI EnableMouseInPointer(
  _In_ BOOL fEnable
);

BOOL WINAPI IsMouseInPointerEnabled(void);

GetPointerInfo

WM_POINTERxxx메세지를 받았을때, 터치 정보를 얻는다.

실시간으로 날라오면, 프로그램에서 모두 처리하기 어려울 수 도 있다. 가능하면, GetPointerInfoHistory 를 사용하자.

BOOL WINAPI GetPointerInfo(
  _In_  UINT32       pointerId,
  _Out_ POINTER_INFO *pointerInfo
);

typedef struct tagPOINTER_INFO {
  POINTER_INPUT_TYPE         pointerType;
  UINT32                     pointerId;
  UINT32                     frameId;
  POINTER_FLAGS              pointerFlags;
  HANDLE                     sourceDevice;
  HWND                       hwndTarget;
  POINT                      ptPixelLocation;
  POINT                      ptHimetricLocation;
  POINT                      ptPixelLocationRaw;
  POINT                      ptHimetricLocationRaw;
  DWORD                      dwTime;
  UINT32                     historyCount;
  INT32                      inputData;
  DWORD                      dwKeyStates;
  UINT64                     PerformanceCount;
  POINTER_BUTTON_CHANGE_TYPE ButtonChangeType;
} POINTER_INFO;

GetPointerInfoHistory 

WM_POINTERUPDATE 메세지를 받았을때 호출한다.

BOOL WINAPI GetPointerInfoHistory(
  _In_      UINT32       pointerId,
  _Inout_   UINT32       *entriesCount,
  _Out_opt_ POINTER_INFO *pointerInfo
);

BOOL WINAPI IsTouchWindow(
  _In_      HWND   hWnd,
  _Out_opt_ PULONG pulFlags 

); 

RegisterTouchWindow

GetTouchInputInfo

UINT32 id=GET_POINTERID_WPARAM(pMsg->wParam);

POINTER_TYPE pointerType = PT_POINTER;

if(!GetPointerType(id,&pointerType))

{

// failure,call GetLastError()

// set PT_POINTER to fall to default case below

pointerType = PT_POINTER;

}

switch(pointerType)

{

case PT_TOUCH:

POINTER_TOUCH_INFO touchInfo;

if(GetPointerTouchInfo(id,&touchInfo))

{

POINT point;

Point.X = touchInfo.pointerInfo.ptPixelLocationRaw.x;

point.y = touchInfo.pointerInfo.ptPixelLocationRaw.y;

AccNotifyTouchInteraction(hwnd,GetForegroundWindow(),point);

}

break;

case PT_PEN:

POINTER_PEN_INFO penInfo;

if(!GetPointerPenInfo(id,&penInfo))

{

// failure,call GetLastError()

}

else

{

// success,process penInfo

// mark as handled to skip call to DefWindowProc

fHandled = TRUE;

}

break;

default:

if(!GetPointerInfo(id,&pointerInfo)) 

{

// failure.

} 

else 

{

// success,proceed with pointerInfo.

fHandled = HandleGenericPointerInfo(&pointerInfo);

}

break;

} 

typedef struct tagPOINTER_TOUCH_INFO{

} POINTER_PEN_INFO;