Applies an emboss effect to a bitmap, letting you specify the depth and direction of the effect.
#include "l_bitmap.h"
L_LTIMGEFX_API L_INT L_EmbossBitmap(pBitmap, uDirection, uDepth, uFlags)
Pointer to the bitmap handle referencing the target bitmap.
The direction of the apparent light source. Valid values are:
Direction | Value |
---|---|
EMBOSS_N | [0] |
EMBOSS_NE | [1] |
EMBOSS_E | [2] |
EMBOSS_SE | [3] |
EMBOSS_S | [4] |
EMBOSS_SW | [5] |
EMBOSS_W | [6] |
EMBOSS_NW | [7] |
The apparent depth of this three-dimensional effect. Valid values are 0 to 1000, with 500 as normal.
Reserved for future use. Must be 0.
Value | Meaning |
---|---|
SUCCESS | The function was successful. |
< 1 | An error occurred. Refer to Return Codes. |
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 in the Document and Medical Imaging toolkits.
This function does not support 32-bit grayscale images. It returns the error code ERROR_GRAY32_UNSUPPORTED if a 32-bit grayscale image is passed to this function.
Emboss Function - Before
Emboss Function - After
View additional platform support for this Emboss function.
Win32, x64, Linux.
For complete sample code, refer to the CHILD.C module of the DEMO example.
This example loads a bitmap and embosses it.
L_INT EmbossBitmapExample(L_VOID)
{
L_INT nRet;
BITMAPHANDLE LeadBitmap; /* Bitmap handle to hold the loaded image. */
/* Load the bitmap, keeping the bits per pixel of the file */
nRet = L_LoadBitmap(MAKE_IMAGE_PATH(TEXT("NaturalFruits.jpg")), &LeadBitmap, sizeof(BITMAPHANDLE), 0, ORDER_BGR, NULL, NULL);
if (nRet != SUCCESS)
return nRet;
/* Emboss with northeast direction and average depth */
nRet = L_EmbossBitmap(&LeadBitmap, EMBOSS_NE, 500, 0);
if (nRet != SUCCESS)
return nRet;
nRet = L_SaveBitmap(MAKE_IMAGE_PATH(TEXT("Result.BMP")), &LeadBitmap, FILE_BMP, 24, 0, NULL);
if (nRet != SUCCESS)
return nRet;
//free bitmap
if (LeadBitmap.Flags.Allocated)
L_FreeBitmap(&LeadBitmap);
return SUCCESS;
}
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