ImageGear for C and C++ on Windows v19.0
IG_dspl_device_to_image_d
| API Reference Guide > Core Component API Reference > Core Component Functions Reference > Display Functions > IG_dspl_device_to_image_d |
This function translates an array of points in DOUBLE float-points format from the device coordinates to the image coordinates.
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AT_ERRCOUNT ACCUAPI IG_dspl_device_to_image_d(
[IN] HIGEAR hIGear,
[IN] DWORD dwGrpID,
[IN] HWND hWnd,
[IN] HDC hDC,
[IN/OUT] LPAT_DPOINT lpPoint,
[IN] UINT nCount
);
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| Name | Type | Description |
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| hIGear | HIGEAR | ImageGear handle of image. |
| dwGrpID | DWORD | Identifier of the group from which to get display options. |
| hWnd | HWND | Handle of the window from which the image is drawn. |
| hDC | HDC | Handle of the device context used for drawing. This can be NULL, but if a calculation is necessary for printer device context, then you should provide the real value. |
| lpPoint | LPAT_DPOINT | Pointer to an array of points in DOUBLE float-point format that should be translated. |
| nCount | UINT | Number of elements in the lpPoint array. |
Returns the number of ImageGear errors that occurred during this function call.
All pixel formats supported by ImageGear for C and C++.
None
This function takes into account all display parameters, including the orientation and current scrolling position.
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See also the function IG_dspl_image_to_device_d(). |