#include "ltwrappr.h"
virtual L_INT LBitmap::Bending (nValue, CenterPt, crFill, uFlags)
L_INT nValue; |
stretch amount |
POINT CenterPt; |
effect center |
COLORREF crFill; |
fill color |
L_UINT uFlags; |
flags |
Warps the active bitmap along a curved plane, centered on the pivot point.
Parameter | Description | |
nValue | Amount of stretching, where positive values stretch the pixels toward edges, and negative values stretch the pixels toward the center. Possible values range from 500 to 500. | |
CenterPt | A POINT structure that contains the center of the arc. This is ignored when either BND_HORZ or BND_VERT is set in the uFlags parameter. | |
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 peripherally exposed areas, how to handle centrally exposed areas and the type of bending. You can use a bitwise OR (|) to specify one flag from each group. | |
The following are the flags that indicate how to handle peripherally 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 how to handle an exposed center: | ||
Value | Meaning | |
FILL_ROT | [0x0000] Rotate the image inside the arc pattern. | |
FILL_WOUTROT | [0x0010] Fill the exposed center as you would any other exposed area. This is determined by setting the FILL_CLR, FILL_RPT or FILL_NOCHG flags. | |
This flag is ignored if the nValue is negative. | ||
The following are the flags that indicate how the bitmap is bent: | ||
Value | Meaning | |
BND_NORM | [0x0000] Stretch the image along the vertical and horizontal planes. | |
BND_HORZ | [0x0100] Stretch the image along the horizontal plane. | |
BND_VERT | [0x0200] Stretch the image along the vertical plane. |
SUCCESS |
The function was successful. |
< 1 |
An error occurred. Refer to Return Codes. |
The function bends 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.
Required DLLs and Libraries
LTIMGSFX 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.
L_INT LBitmap__BendingExample(LAnimationWindow * LAniWnd)
{
POINT pt;
pt.x = 100;
pt.y = 100;
return LAniWnd->Bending(20, pt, RGB(200,120,30), FILL_CLR);
}
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