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SetGuideHRC
- 0
Sets a guide structure into an HRC object.
int SetGuideHRC( HRC hrc, LPGUIDE lpguide, UINT nFirstVisible )
Parameters
hrc
Handle to the HRC object.
lpguide
Pointer to a GUIDE structure, or NULL. All coordinates are in screen coordinates.
nFirstVisible
For boxed controls, nFirstVisible refers to the first visible box (leftmost and topmost for left-right,
top-down languages like English). For other controls, this is the first visible
character position (leftmost for English) in a single-line control, and the first
visible line (topmost for English) in multiline controls.
Return Value
Returns HRCR_OK if successful; otherwise, returns one of the following
negative values:
Constant
| Description
| HRCR_ERROR
| Invalid parameter or other error.
| HRCR_INVALIDGUIDE
| The guide structure is invalid.
| HRCR_MEMERR
| Insufficient memory.
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Comments
This function is useful for doing boxed recognition. The GUIDE structure defines the size and position of the boxes. The nFirstVisible parameter notifies the recognizer which is the first visible character
position (single-line controls) or line (multiline controls) in case the contents
were scrolled. The writing direction affects the meaning of this value.
If lpguide is NULL, or if all the members in the GUIDE structure are 0, the recognizer does not use guides (free input).
See Also
GetGuideHRC, GUIDE
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