L_RectToBitmap
#include "l_bitmap.h"
L_INT EXT_FUNCTION L_RectToBitmap(pBitmap, nViewPerspective, lprc)
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pBITMAPHANDLE pBitmap; |
/* pointer to the bitmap handle */ |
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L_INT nViewPerspective; |
/* source view perspective */ |
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LPRECT lprc; |
/* pointer to the RECT structure to be translated */ |
Translates a Windows RECT structure from a specified view perspective to the bitmap's view perspective.
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Parameter |
Description |
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pBitmap |
Pointer to the bitmap handle referencing the bitmap that contains the rectangle. |
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nViewPerspective |
Source view perspective from which the rectangle should be translated. |
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lprc |
Pointer to the RECT structure to be translated. |
Returns
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SUCCESS |
The function was successful. |
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< 1 |
An error occurred. Refer to Return Codes. |
Comments
To use this function, do the following:
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1. |
Declare a Windows RECT structure and a pointer to it. |
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2. |
Assign the values of the rectangle. |
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3. |
Call this function, passing the pointer to the RECT structure, and specifying the source view perspective. (The function gets the destination view perspective from the bitmap handle.) |
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4. |
Get the translated rectangle from the RECT structure, which this function has updated. |
For general information about view perspectives, refer to Accounting for View Perspective.
Required DLLs and Libraries
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LTKRN For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application. |
Platforms
Windows 95 / 98 / Me, Windows 2000 / XP, Windows CE.
See Also
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Functions: |
L_PointFromBitmap, L_PointToBitmap, L_RectFromBitmap, L_ChangeBitmapViewPerspective, L_RotateBitmapViewPerspective |
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Topics: |
Example
/* This example finds out where the RECT {10,10,100,100 } */
/* in the TOP_LEFT90 ViewPerspective actually is in the bitmap */
BITMAPHANDLE LeadBitmap; /* Bitmap handle that holds the bitmap */
RECT rc;
rc.top = 10;
rc.left = 10;
rc.bottom = 100;
rc.right = 100;
L_RectToBitmap ( &LeadBitmap, TOP_LEFT90, &rc );