LBitmap::ZoomWave
#include "ltwrappr.h"
virtual L_INT LBitmap::ZoomWave(uAmplitude, uFrequency, nPhase, uZomFact, CenterPt, crFill, uFlag)
L_UINT uAmplitude; |
/* zoom wave size */ |
L_UINT uFrequency; |
/* number of repeated wave */ |
L_INT nPhase; |
/* wave phase shift */ |
L_UINT uZoomFact; |
/* wave growing factor */ |
POINT CenterPt; |
/* zoom wave center */ |
COLORREF crFill; |
/* color value */ |
L_UINT uFlag; |
/* flag */ |
Distorts the bitmap with a wave zoomed from the specified center. This function is available in the Raster Pro and above toolkits.
Parameter |
Description |
|
uAmplitude |
Zoom wave magnitude. |
|
uFrequency |
The number of repeated waves along the radial line. |
|
nPhase |
Wave phase shift. The valid range is from –36000 to 36000. The real value is nPhase divided by 100. |
|
uZoomFact |
The percentage the wave grows as it moves from the image center. The valid range is from 0 to 100. |
|
CenterPt |
POINT structure that contains the center point from which the wave is zoomed. |
|
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. |
|
uFlag |
Flag that indicates how to handle exposed areas. Possible values are: |
|
|
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. |
Returns
SUCCESS |
The function was successful. |
< 1 |
An error occurred. Refer to Return Codes. |
Comments
The function applies a sinusoidal wave zoomed 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 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.
Required DLLs and Libraries
LTIMG For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application. |
See Also
Example
void MyTestFunction(LAnimationWindow * LAniWnd)
{
POINT CenterPt;
CenterPt.x = (LAniWnd->GetHandle ())->Width/2;
CenterPt.y = (LAniWnd->GetHandle ())->Height/2;
LAniWnd->ZoomWave(20 , 10 , 0 , 0, CenterPt, 0 , FILL_RPT);
}