Available in LEADTOOLS Imaging Pro, Vector, Document, and Medical Imaging toolkits. |
#include "l_bitmap.h"
L_LTDIS_API L_INT L_GetBitmapRgnArea(pBitmap, puArea)
pBITMAPHANDLE pBitmap; |
/* pointer to the bitmap */ |
L_SIZE_T* puArea; |
/* address of the variable to be updated */ |
Gets the total number of pixels in the bitmap region.
Parameter |
Description |
pBitmap |
Pointer to the bitmap handle referencing the bitmap that has the region. |
puArea |
Address of the variable to be updated with the pixel count. |
Returns
SUCCESS |
The function was successful. |
< 1 |
An error occurred. Refer to Return Codes. |
Comments
Before calling this function, you must declare an L_UINT32 variable for the pixel count. You can then pass the address of the variable in the puArea parameter, and the function will update the variable.
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. |
Platforms
Win32, x64.
See Also
Functions: |
L_FrameBitmapRgn, L_BitmapHasRgn, L_FreeBitmapRgn, L_IsPtInBitmapRgn |
Topics: |
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Example
For complete sample code, refer to the FEATURE3 example. This example displays the area of the current bitmap region.
L_INT GetBitmapRgnAreaExample(pBITMAPHANDLE pBitmap) { L_INT nRet; L_TCHAR szMessage[80]; /* Buffer for the MessageBox string */ L_SIZE_T zArea; /* Number of pixels in the region */ /* Get the number of pixels in the region */ nRet = L_GetBitmapRgnArea(pBitmap, &zArea); if(nRet != SUCCESS) return nRet; /* Display the result in a message */ wsprintf( szMessage, TEXT("The region area is %ld pixels"), zArea); MessageBox (NULL, szMessage, TEXT("Notice"), MB_OK); return SUCCESS; }