#include "l_bitmap.h"
L_LTIMGSFX_API L_INT L_RadWaveBitmap(pBitmap, uAmplitude, uWaveLen, nPhase, pCenter, crFill, uFlags)
pBITMAPHANDLE pBitmap; |
pointer to the bitmap handle |
L_UINT uAmplitude; |
radial wave size |
L_UINT uWaveLen; |
waves length |
L_INT nPhase; |
wave phase shift |
POINT pCenter; |
radial wave center |
COLORREF crFill; |
fill color |
L_UINT uFlags; |
flags |
Distorts a bitmap using a wave radiating from the specified center.
Parameter | Description | |
pBitmap | Pointer to the bitmap handle that references the bitmap on which to apply the effect. | |
uAmplitude | An integer that represents the magnitude of the wave. Valid values range from 0 to 100. | |
uWaveLen | Value that represents the wave length, if DIS_PER is set in the uFlags parameter. Possible values range from 1 100 and give the wavelength as a percentage of the bitmap dimensions. If DIS_FRQ is set in uFlags, this value is the number of repeated waves. | |
nPhase | Wave phase shift, in hundredths of degrees. The valid range is from 36000 to 36000 (The value in degrees is nPhase divided by 100). | |
pCenter | POINT structure that contains the point from which the wave radiates. | |
crFill | The COLORREF value that specifies the fill color for any exposed areas. You can specify a COLORREF value, such as the return value of the Windows RGB macro, or you can use the PALETTEINDEX macro to specify a palette color. | |
uFlags | Flags that indicate how to handle exposed areas and what type of information is in the uWaveLen parameter. You can use a bitwise OR (|) to specify one flag from each group. | |
The following are the flags that indicate how to handle exposed areas: | ||
Value | Meaning | |
FILL_CLR | [0x0000] Fill any exposed areas with crFill. | |
FILL_RPT | [0x0001] Stretch the image edges to fill the exposed area. | |
FILL_NOCHG | [0x0002] Leave the exposed area as is, without changing it. | |
The following are the flags that indicate the type of information contained in the uWaveLength parameter: | ||
Value | Meaning | |
DIS_PER | [0x0000] The value in uWaveLen is a wavelength given as a percent of the bitmap dimensions. If this value is set, the valid range of uWaveLen is from 0 to 100. | |
DIS_FRQ | [0x0010] The value in uWaveLen is the frequency, or the number of times the wave repeats. |
SUCCESS |
The function was successful. |
< 1 |
An error occurred. Refer to Return Codes. |
This function does not support signed data images. It returns the error code ERROR_SIGNED_DATA_NOT_SUPPORTED if a signed data image is passed to this function.
The function applies a sinusoidal wave radiating from the specified center. The center point must be defined inside the bitmap or inside the region, if the bitmap has a region.
If the bitmap has a region, the effect will be applied on the region only.
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.
To update a status bar or detect a user interrupt during execution of this function, refer to L_SetStatusCallback.
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.
Required DLLs and Libraries
For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application. |
Win32, x64.
#define MAKE_IMAGE_PATH(pFileName) TEXT("C:\\Users\\Public\\Documents\\LEADTOOLS Images\\")pFileName
L_INT RadWaveBitmapExample(L_VOID)
{
L_INT nRet;
BITMAPHANDLE LeadBitmap; /* Bitmap handle for the image */
POINT CenterPt;
/* Load a bitmap at its own bits per pixel */
nRet = L_LoadBitmap(MAKE_IMAGE_PATH(TEXT("sample5.cmp")), &LeadBitmap, sizeof(BITMAPHANDLE), 0, ORDER_BGR, NULL, NULL);
if(nRet !=SUCCESS)
return nRet;
/* apply zoom wave from center of the image*/
CenterPt.x = LeadBitmap.Width/2;
CenterPt.y = LeadBitmap. Height/2;
nRet = L_RadWaveBitmap (&LeadBitmap, 5, 25, 0, CenterPt, 0, FILL_RPT | DIS_FRQ);
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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