L_PosterizeBitmap
#include "l_bitmap.h"
L_INT EXT_FUNCTION L_PosterizeBitmap(pBitmap, uLevels)
pBITMAPHANDLE pBitmap; |
/* pointer to the bitmap handle */ |
L_UINT uLevels; |
/* number of color levels to use */ |
Imposes a poster effect on a bitmap by quantizing the bitmap's colors to a specified number of color levels per plane. For example, two levels means two of red, two of green, and two of blue.
Parameter |
Description |
pBitmap |
Pointer to the bitmap handle that references the bitmap to be affected. |
uLevels |
The number of color levels to use. Valid values are 2 through 64. |
Returns
SUCCESS |
The function was successful. |
< 1 |
An error occurred. Refer to Return Codes. |
Comments
To update a status bar or detect a user interrupt during execution of this function, refer to L_SetStatusCallback.
This function supports 12 and 16-bit grayscale and 48 and 64-bit color images. Support for 12 and 16-bit grayscale and 48 and 64-bit color images is available only in the Document/Medical toolkits.
Required DLLs and Libraries
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.
See Also
Example
For complete sample code, refer to the CHILD.C module of the DEMO example.
/* This example loads a bitmap and posterizes it. */
BITMAPHANDLE LeadBitmap; /* Bitmap handle to hold the loaded image. */
/* Load the bitmap, keeping the bits per pixel of the file */
L_LoadBitmap (TEXT("IMAGE1.CMP"), &LeadBitmap, sizeof(BITMAPHANDLE), 0, ORDER_BGR, NULL, NULL);
/* Apply a poster effect with six color levels per plane */
L_PosterizeBitmap(&LeadBitmap, 6 );