IInkTransform::Data
4/8/2010
Gets or sets access to the XFORM structure. For more information, see IInkTransform.
Syntax
[propput] HRESULT put_Data ([in] XFORM XForm);
[propget] HRESULT get_Data ([out, retval] XFORM *XForm);
Parameters
- XForm
Returns or sets access to the Microsoft Win32® XFORM structure.
Return Value
| HRESULT value | Description |
|---|---|
S_OK |
Success. |
E_POINTER |
The parameter pointer was invalid. |
E_INK_EXCEPTION |
An exception occurred inside the method. |
Remarks
The XFORM structure has the following form:
typedef struct tagXFORM {
FLOAT eM11;
FLOAT eM12;
FLOAT eM21;
FLOAT eM22;
FLOAT eDx;
FLOAT eDy;
} XFORM;
The XFORM structure specifies a world–space to page–space transformation. The eDx and eDy members specify the horizontal and vertical translation components, respectively. The following table shows how the other members are used, depending on the operation:
| Operation | eM11 | eM12 | eM21 | eM22 |
|---|---|---|---|---|
Rotation |
Cosine of rotation angle |
Sine of rotation angle |
Negative sine of rotation angle |
Cosine of rotation angle |
Scaling |
Horizontal scaling component |
Nothing |
Nothing |
Vertical scaling component |
Shear |
Nothing |
Horizontal proportionality constant |
Vertical proportionality constant |
Nothing |
Reflection |
Horizontal reflection component |
Nothing |
Nothing |
Vertical |
Requirements
| Header | msinkaut.h |
| Windows Embedded CE | Windows CE 5.0 and later |
| Windows Mobile | Windows Mobile 6 Classic and later, Windows Mobile 6 Professional and later |