L_LTIMGSFX_API L_INT L_RadWaveBitmap(pBitmap, uAmplitude, uWaveLen, nPhase, pCenter, crFill, uFlags)
Distorts a bitmap using a wave radiating from the specified center.
Pointer to the bitmap handle that references the bitmap on which to apply the effect.
An integer that represents the magnitude of the wave. Valid values range from 0 to 100.
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.
Wave phase shift, in hundredths of degrees. The valid range is from 36000 to 36000 (The value in degrees is nPhase divided by 100).
POINT structure that contains the point from which the wave radiates.
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.
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.
|FILL_CLR||[0x0000] Fill any exposed areas with
|FILL_RPT||[0x0001] Stretch the image edges to fill the exposed area.|
|FILL_NOCHG||[0x0002] Leave the exposed area as is, without changing it.|
|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
BITMAPHANDLE LeadBitmap; /* Bitmap handle for the image */
/* 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);
/* 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);
nRet = L_SaveBitmap(MAKE_IMAGE_PATH(TEXT("Result.BMP")), &LeadBitmap, FILE_BMP, 24, 0, NULL);
Medical Web Viewer .NET
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