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; 

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.



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


Pointer to the bitmap handle that references the bitmap used for preview or processing.


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)".


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 passed DLG_WAVESHEAR_AUTOPROCESS flag in the uDlgFlags field of this structure.


Number of entries in the pAmplitudes array.


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).


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.


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. Possible values are:

Value Meaning
How to handle the exposed areas
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 direction of the shear wave
SHR_HORZ [0x0000] apply the shear wave horizontally.
SHR_VERT [0x0010] apply the shear wave vertically.


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

Value Meaning
DLG_WAVESHEAR_AUTOPROCESS [0x00000001] process the image on OK. The pBitmap member of this structure should contain a valid bitmap.
DLG_WAVESHEAR_SHOW_CONTEXTHELP [0x00000002] dialog should contain a context sensitive help icon.
DLG_WAVESHEAR_SHOW_PREVIEW [0x00000004] show a preview of the image in the dialog. The pBitmap member of this structure should contain a valid bitmap.
DLG_WAVESHEAR_SHOW_TOOL_ZOOMLEVEL [0x00000008] show the "Zoom to fit" and "Zoom Normal" toolbar buttons. The DLG_WAVESHEAR_SHOW_PREVIEW flag must be set in order to show these buttons.





Help Version 21.0.2021.4.7
Products | Support | Contact Us | Intellectual Property Notices
© 1991-2021 LEAD Technologies, Inc. All Rights Reserved.

LEADTOOLS Common Dialog C++ Class Library Help