#include "ltwrappr.h"

virtual L_INT LDialogImageEffect::DoModalWaveShear(hWndOwner)

Displays the Wave Shear dialog box, and gets the options for LBitmap::FreeHandShear.


HWND hWndOwner

Handle of the window which owns the dialog.


Value Meaning
SUCCESS_DLG_OK The "OK" button was pressed, and the dialog exited successfully.
SUCCESS_DLG_CANCEL The "Cancel" button was pressed, and the dialog exited successfully.
< 1 An error occurred. Refer to Return Codes.


LDialogImageEffect::SetWaveShearParams must be called before using this function to set the initial values for the dialog. You can get the updated WAVESHEARDLGPARAMS with the values entered by the user through the dialog by using LDialogImageEffect::GetWaveShearParams.

The Wave Shear dialog.

This dialog has the following fields:

Curve Mode Drop-down list box:

Use this to select the curve mode to use. There are two choices:

Flip Buttons:

Use these buttons to flip the curve if the Curve Mode is either Curve or Linear. The following options are available:

Reset Button:

Use the Reset button to set the curve to its default values.

Load Button:

Use the Load button to load an "*.lsr" file that contains Shear Wave curve settings, using the Load dialog. The loaded file will set a new curve.


Loading curve settings will overwrite all current settings!

Save Button:

Use the Save button to save curve settings into an "*.lsr" file. This allows you set the same curve settings for other images by re-loading the file.

Required DLLs and Libraries

See Also




L_INT LDialogImageEffect_DoModalWaveShearExample(LBitmap * pBitmap, HWND hWnd) 
   L_INT nRet; 
   LDialogImageEffect DlgImageEffect; 
   nRet = LDialogImageEffect::Initialize(DLG_INIT_COLOR ); 
   if(nRet != SUCCESS) 
      return nRet; 
   memset ( &DlgParams, 0, sizeof ( WAVESHEARDLGPARAMS ) ); 
   DlgParams.uStructSize      = sizeof ( WAVESHEARDLGPARAMS ); 
   DlgImageEffect.EnableCallBack (FALSE); 
   nRet = DlgImageEffect.SetWaveShearParams(&DlgParams); 
   if(nRet != SUCCESS) 
      return nRet; 
   nRet = DlgImageEffect.DoModalWaveShear(hWnd); 
   if(nRet < 1) 
      return nRet; 
   // Gets the updated values for the structure 
   nRet = DlgImageEffect.GetWaveShearParams(&DlgParams, sizeof(DlgParams)); 
   if(nRet != SUCCESS) 
      return nRet; 
   if ( NULL != DlgParams.pAmplitudes ) 
      GlobalFree ( DlgParams.pAmplitudes ); 
   nRet = LDialogImageEffect::Free(); 
   if(nRet != SUCCESS) 
      return nRet; 
   return SUCCESS; 
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