Databases
StackOverflow2013
Postsdbo
POInjectTouchInput Windows 8 C# not working (returns false)
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POInjectTouchInput Windows 8 C# not working (returns false)
    primarykey
    data
    text
    <p>I've just recently started playing with the InjectTouchInput for Windows 8 Consumer Preview. I've gone round and round in circles trying to get the darn thing to work but just can't seem to get it to actually interact. I'm working in c# and at the moment am only creating a metro interface with x and y coordinates in two text boxes and buttons which call the functions below to touch on the screen at those coordinates. Is this the right way to go about doing this?</p> <pre><code>protected unsafe class TouchDriver { public struct POINTER_TOUCH_INFO { public POINTER_INFO pointerInfo; // An embedded POINTER_INFO header structure. public TOUCH_FLAGS touchFlags; // Currently none. public Rect rcContact; // Pointer contact area in pixel screen coordinates. By default, if the device does not report a contact area, this field defaults to a 0-by-0 rectangle centered around the pointer location. public UInt32 orientation; // A pointer orientation, with a value between 0 and 359, where 0 indicates a touch pointer aligned with the x-axis and pointing from left to right; increasing values indicate degrees of rotation in the clockwise direction. // This field defaults to 0 if the device does not report orientation. public UInt32 pressure; // Pointer pressure normalized in a range of 0 to 256. // This field defaults to 128 if the device does not report pressure. // Question: Can this go from 0 to 1024 to match pen pressure? } public enum TOUCH_FLAGS { TOUCH_FLAGS_NONE = 0x00000000 } public POINTER_TOUCH_INFO create_pointer_touch_info(POINTER_INFO pointerInfo, TOUCH_FLAGS touchFlags, RECT rcContact, UInt32 orientation, UInt32 pressure) { POINTER_TOUCH_INFO mi = new POINTER_TOUCH_INFO(); mi.pointerInfo = pointerInfo; mi.touchFlags = touchFlags; mi.rcContact = rcContact; mi.orientation = orientation; mi.pressure = pressure; return mi; } public enum POINTER_INPUT_TYPE { PT_POINTER = 0x00000001, PT_TOUCH = 0x00000002, PT_PEN = 0x00000003, PT_MOUSE = 0x00000004 } public struct POINTER_INFO { public POINTER_INPUT_TYPE pointerType; public UInt32 pointerId; public UInt32 frameId; public HANDLE sourceDevice; public HWND hwndTarget; public Point ptPixelLocation; public Point ptHimetricLocation; public Point ptPixelLocationPredicted; public Point ptHimetricLocationPredicted; public POINTER_FLAGS pointerFlags; public DWORD dwTime; public UInt32 historyCount; // public UInt32 inputData; public DWORD dwKeyStates; public ULONGLONG Reserved; } public POINTER_INFO create_pointer_info( POINTER_INPUT_TYPE pointerType, UInt32 pointerId, UInt32 frameId, HANDLE sourceDevice, HWND hwndTarget, Point ptPixelLocation, Point ptHimetricLocation, Point ptPixelLocationPredicted, Point ptHimetricLocationPredicted, POINTER_FLAGS pointerFlags, DWORD dwTime, UInt32 historyCount, // UInt32 inputData, DWORD dwKeyStates, ULONGLONG Reserved) { POINTER_INFO mi = new POINTER_INFO(); mi.pointerType = pointerType; mi.pointerId = pointerId; mi.frameId = frameId; mi.sourceDevice = sourceDevice; mi.hwndTarget = hwndTarget; mi.ptPixelLocation = ptPixelLocation; mi.ptHimetricLocation = ptHimetricLocation; mi.ptPixelLocationPredicted = ptPixelLocationPredicted; mi.ptHimetricLocationPredicted = ptHimetricLocationPredicted; mi.pointerFlags = pointerFlags; mi.dwTime = dwTime; mi.historyCount = historyCount; // mi.inputData = inputData; mi.dwKeyStates = dwKeyStates; mi.Reserved = Reserved; return mi; } public enum POINTER_FLAGS { POINTER_FLAG_NONE = 0x00000000, POINTER_FLAG_NEW = 0x00000001, POINTER_FLAG_INRANGE = 0x00000002, POINTER_FLAG_INCONTACT = 0x00000004, POINTER_FLAG_FIRSTBUTTON = 0x00000010, POINTER_FLAG_SECONDBUTTON = 0x00000020, POINTER_FLAG_THIRDBUTTON = 0x00000040, POINTER_FLAG_OTHERBUTTON = 0x00000080, POINTER_FLAG_PRIMARY = 0x00000100, POINTER_FLAG_CONFIDENCE = 0x00000200, POINTER_FLAG_CANCELLED = 0x00000400, POINTER_FLAG_DOWN = 0x00010000, POINTER_FLAG_UPDATE = 0x00020000, POINTER_FLAG_UP = 0x00040000, POINTER_FLAG_WHEEL = 0x00080000, POINTER_FLAG_HWHEEL = 0x00100000 } [System.Runtime.InteropServices.DllImport("user32.dll", CallingConvention = CallingConvention.StdCall)] private static extern Boolean InjectTouchInput(UInt32 count, POINTER_TOUCH_INFO* pntTchInfo); [System.Runtime.InteropServices.DllImport("user32.dll")] private static extern Boolean InitializeTouchInjection(UInt32 maxCount, DWORD dwMode); private const UInt32 MAX_TOUCH_COUNT = 256; // Can be as high as 256 private const UInt32 TOUCH_FEEDBACK_DEFAULT = 0x1; private const UInt32 TOUCH_FEEDBACK_INDIRECT = 0x2; private const UInt32 TOUCH_FEEDBACK_NONE = 0x3; public unsafe static void MouseTouch(int x, int y) { bool ret = false; ret = InitializeTouchInjection(1, TOUCH_FEEDBACK_DEFAULT); if (!ret) { throw new NotSupportedException(); } Point point = new Point(x,y); POINTER_INFO ptrInfo = new POINTER_INFO(); POINTER_TOUCH_INFO* ptrTchInfo; ptrInfo.pointerType = POINTER_INPUT_TYPE.PT_TOUCH; ptrInfo.pointerId = 1; ptrInfo.ptPixelLocation = point; ptrInfo.pointerFlags = POINTER_FLAGS.POINTER_FLAG_PRIMARY; POINTER_TOUCH_INFO ptrTchInfobase = new POINTER_TOUCH_INFO(); ptrTchInfo = &amp;ptrTchInfobase; ptrTchInfo-&gt;pointerInfo = ptrInfo; ptrTchInfo-&gt;touchFlags = TOUCH_FLAGS.TOUCH_FLAGS_NONE; ptrTchInfo-&gt;rcContact.X = x - 2; ptrTchInfo-&gt;rcContact.Y = y - 2; ptrTchInfo-&gt;rcContact.Width = 4; ptrTchInfo-&gt;rcContact.Height = 4; ptrTchInfo-&gt;pressure = 128; ptrTchInfo-&gt;orientation = 0; ret = InjectTouchInput(1, ptrTchInfo); if (!ret) { throw new NotImplementedException(); } } } </code></pre> <p>Almost all of that I've tried to lift from the InjectTouchInput API I found online. I can InitializeTouchInject fine, its the Inject bit thats returning false and I have no idea why.</p>
    singulars
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PTQuestion
    1. USala
    1. USuser1333628
    plurals
    1. This table or related slice is empty.
    1. PL
      singulars
      1. LTLinked
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. POInjectTouchInput Windows 8 C# not working (returns false)
      1. USala
      1. VTFavorite
    2. VO
      singulars
      1. POInjectTouchInput Windows 8 C# not working (returns false)
      1. This table or related slice is empty.
      1. VTUpMod
    3. VO
      singulars
      1. POInjectTouchInput Windows 8 C# not working (returns false)
      1. This table or related slice is empty.
      1. VTUpMod
    1. COWhat does GetLastError return after calling InjectTouchInput? InjectTouchInput is pretty nitpicky about its input parameters, it's likely there's something that's not quite perfect.
      singulars
      1. POInjectTouchInput Windows 8 C# not working (returns false)
      1. USLarry Osterman
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload