Spins the image according to the rotation angle to produce a swirl pattern.
virtual L_INT LBitmap::Swirl(nRotationAngle, CenterPt, uFlags = 0)
The degree of rotation. This value is in degrees (0360720, etc.).
POINT structure that contains the center of the swirl.
Reserved for future use. Must be 0.
|SUCCESS||The function was successful.|
|< 1||An error occurred. Refer to Return Codes.|
The function swirls the image around the specified CenterPt. 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 only in the Document/Medical toolkits.
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.
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.
Swirl Function - Before
Swirl Function - After
View additional platform support for this Swirl function.
L_INT LBitmap__SwirlExample(LAnimationWindow * LAniWnd)
CenterPt.x = (LAniWnd->GetHandle ())->Width/2;
CenterPt.y = (LAniWnd->GetHandle ())->Height/2;
return LAniWnd->Swirl(180, CenterPt);
Medical Web Viewer .NET
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