WAVESHEARDLGPARAMS

typedef struct _WAVESHEARDLGPARAMS
{
   L_UINT uStructSize;
   pBITMAPHANDLE pBitmap;
   L_BOOL bZoomToFit;
   L_INT  * pAmplitudes;
   L_UINT uAmplitudesCount;
   L_UINT uScale;
   COLORREF crFill;
   L_UINT uWaveShearFlags;
   L_UINT32 uDlgFlags;
   LTCOMMDLGHELPCB pfnHelpCallback;
   L_VOID  *pHelpCallBackUserData;
} WAVESHEARDLGPARAMS,  * LPWAVESHEARDLGPARAMS;

The WAVESHEARDLGPARAMS structure provides information used to initialize the dialog box created by the LDialogImageEffect::DoModalWaveShear function. After the user closes the dialog box, this structure is updated with information about the user's selections.

Member

Description

uStructSize

Size of this structure, in bytes. Use the sizeof operator to calculate this value.

pBitmap

Ignored.

bZoomToFit

Flag that indicates the initial zoom level for previewing the image. Possible values are:

 

Value

Meaning

 

TRUE

Set the initial zoom level to "Zoom to fit".

 

FALSE

Set the initial zoom level to "Normal (1:1)".

 

pAmplitudes

Array of integers that represent shear wave values. The valid value of each element in pAmplitudes array is between –1000 and 1000. These values are obtained through the Wave Shear Dialog, or, for image processing; they may be obtained from the LBitmap::GetCurvePoints function. The toolkit will allocate this buffer for the user on function return. You should free this pointer using GlobalFree function unless you called the LDialogBase::EnableAutoProcess.

uAmplitudesCount

Number of entries in the pAmplitudes array.

uScale

Factor used to decrease the various amplitude values in the pAmplitudes array. Each value in the pAmplitudes array is multiplied by this factor. The real factor value is the uScale value divided by 100. Therefore, to multiply the amplitude values by 1.0, set this parameter to 100.The values range (1-100).

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.

uWaveShearFlags

Flags that indicate how to handle exposed areas, and the direction of the shear wave. You can use a bit wise OR (|) to specify one flag from each group. The following are the flags that indicate how to handle the exposed areas:

 

Value

Meaning

 

FILL_CLR

[0x0000] fill exposed areas with the color in crFill.

 

FILL_RPT

[0x0001] stretch the edges of the image to fill exposed areas.

 

FILL_NOCHG

[0x0002] do not change or process exposed areas.

 

The following are the flags that indicate the direction of the shear wave:

 

Value

Meaning

 

SHR_HORZ

[0x0000] apply the shear wave horizontally.

 

SHR_VERT

[0x0010] apply the shear wave vertically.

 

uDlgFlags

User interface flags for this dialog, which determine the layout and action of the dialog. Possible values are:

 

Value

Meaning

 

DLG_WAVESHEAR_SHOW_CONTEXTHELP

[0x00000002] dialog should contain a context sensitive help icon.

pfnHelpCallback

Ignored.

pHelpCallBackUserData

Ignored.