#include "l_bitmap.h"

L_LTKRN_API L_INT L_RectFromBitmap(pBitmap, ViewPerspective, lprc)

Translates a Windows RECT structure from the bitmap's view perspective to the specified view perspective.



Pointer to the bitmap handle referencing the bitmap that contains the rectangle.

L_INT ViewPerspective

Destination view perspective to which the rectangle should be translated.

L_RECT * lprc

Pointer to the RECT structure to be translated.


Value Meaning
SUCCESS The function was successful.
< 1 An error occurred. Refer to Return Codes.


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


Win32, x64, Linux.

See Also




This example finds out where the RECT {10,10,100,100 }
of the bitmap would be in a BOTTOM_LEFT ViewPerspective.

L_INT RectFromBitmapExample(pBITMAPHANDLE LeadBitmap,LPRECT       rc) 
   L_INT nRet; 
   rc->top    = 10; 
   rc->left   = 10; 
   rc->bottom = 100; 
   rc->right  = 100; 
   nRet = L_RectFromBitmap (LeadBitmap, BOTTOM_LEFT, rc ); 
   if(nRet != SUCCESS) 
      return nRet; 
   return SUCCESS; 

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