L_LTIMGSFX_API L_INT L_CylindricalBitmap (pBitmap, nValue, uType, uFlags)
Warps the bitmap around a cylinder.
Pointer to the bitmap handle that references the bitmap on which to apply the effect.
Amount of stretching where,
Positive values, stretch the pixels toward the bitmap edges depending on the type of cylinder.
Negative values, stretch the pixels toward the central line of the cylinder.
The valid range is from -100 to 100.
A value that indicates the cylinder shape. Possible values are:
|CYL_HORZ||[0x0000] Stretch the pixels along the vertical plane (horizontal cylinder).|
|CYL_VERT||[0x0001] Stretch the pixels along the horizontal plane (vertical cylinder).|
Reserved for future use. Must be 0.
|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.
If the bitmap has a region, the effect will be applied only to the region.
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), 24, ORDER_BGR, NULL, NULL);
/* Warp the image to horizontal cylinder shape*/
nRet = L_CylindricalBitmap (&LeadBitmap, 100, CYL_HORZ, 0);
nRet = L_SaveBitmap(MAKE_IMAGE_PATH(TEXT("Result.BMP")), &LeadBitmap, FILE_BMP, 24, 0, NULL);
Medical Web Viewer .NET
.NET, Java, Android, and iOS/macOS Assemblies
C API/C++ Class Libraries