LBitmapBase::RectFromBitmap
#include "ltwrappr.h"
virtual L_INT LBitmapBase::RectFromBitmap(nViewPerspective, pRect)
L_INT nViewPerspective; |
/* destination view perspective */ |
LPRECT pRect; |
/* pointer to the RECT structure to be translated */ |
Translates a Windows RECT structure from the class object's bitmap view perspective to the specified view perspective.
Parameter |
Description |
nViewPerspective |
Destination view perspective to which the rectangle coordinates should be translated. |
pRect |
Pointer to the RECT structure to be translated. |
Returns
SUCCESS |
The function was successful. |
< 1 |
An error occurred. Refer to Return Codes. |
Comments
To use this function, do the following:
1. |
Declare a Windows RECT structure and a pointer to it. |
2. |
Assign the values of a known rectangle in the bitmap. |
3. |
Call this function, passing the pointer to the RECT structure, and specifying the destination view perspective. (The function gets the source view perspective from the bitmap handle.) |
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
LTDIS For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application. |
See Also
Functions: |
LBitmapBase::RectToBitmap, LBitmapBase::PointFromBitmap, LBitmapBase::PointToBitmap, Class Members |
Topics: |
Example
L_INT LBitmapBase__RectFromBitmapExample() { L_INT nRet; LBitmapBase MyBitmap; RECT Rect={10,10,100,200}; nRet =MyBitmap.Load(TEXT("C:\\Program Files\\LEAD Technologies, Inc\\LEADTOOLS 15.0\\Images\\image1.cmp"),24); if(nRet !=SUCCESS) return nRet; nRet =MyBitmap.RectFromBitmap(BOTTOM_LEFT, &Rect); if(nRet !=SUCCESS) return nRet; return SUCCESS; }