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LDialogImageEffect::DoModalContourFilter

Summary

Displays the Contour Filter dialog box, and gets the options for LBitmap::ContourFilter. This function is available in the Medical Medical toolkits.

Syntax

#include "ltwrappr.h"

virtual L_INT LDialogImageEffect::DoModalContourFilter(hWndOwner)

Parameters

HWND hWndOwner

Handle of the window which owns the dialog.

Returns

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.

Comments

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

The Contour Filter dialog.

Required DLLs and Libraries

LTDLGIMGEFX
LTDLGKRN
LTDLGUTL
LTDLGCTRL
LTDLGCOM
LTDIS
LTIMGUTL
LTIMGEFX
For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application

Example

L_INT LDialogImageEffect_DoModalContourFilterExample(LBitmap * pBitmap, HWND hWnd) 
{ 
   L_INT nRet; 
 
   LDialogImageEffect DlgImageEffect; 
 
   nRet = LDialogImageEffect::Initialize(0); 
   if(nRet != SUCCESS) 
      return nRet; 
 
   DlgImageEffect.SetBitmap(pBitmap); 
 
   CONTOURFILTERDLGPARAMS DlgParams;  
 
   memset ( &DlgParams, 0, sizeof ( CONTOURFILTERDLGPARAMS ) ); 
 
   DlgParams.uStructSize      = sizeof ( CONTOURFILTERDLGPARAMS ); 
   DlgParams.nMaxError       = 5; 
   DlgParams.nDeltaDirection = 5; 
   DlgParams.nOption         = CONTOUR_LINK_COLOR; 
   DlgParams.nThreshold      = 5; 
   DlgParams.uOptionFlags    = DLG_CONTOURFILTER_SHOW_OPTION_ALL; 
   DlgParams.uDlgFlags       = DLG_CONTOURFILTER_SHOW_DELTADIRECTION |  
                               DLG_CONTOURFILTER_SHOW_MAXIMUMERROR | 
                               DLG_CONTOURFILTER_SHOW_OPTION | 
                               DLG_CONTOURFILTER_SHOW_THRESHOLD; 
 
   DlgImageEffect.EnableCallBack (FALSE); 
   DlgImageEffect.EnablePreview(TRUE); 
   DlgImageEffect.EnableAutoProcess(TRUE); 
   DlgImageEffect.EnableToolbar(TRUE); 
 
   nRet = DlgImageEffect.SetContourFilterParams(&DlgParams); 
   if(nRet != SUCCESS) 
      return nRet; 
 
   nRet = DlgImageEffect.DoModalContourFilter(hWnd); 
   if(nRet < 1) 
      return nRet; 
 
   // Gets the updated values for the structure 
   nRet = DlgImageEffect.GetContourFilterParams(&DlgParams, sizeof(DlgParams)); 
   if(nRet != SUCCESS) 
      return nRet; 
 
   nRet = LDialogImageEffect::Free(); 
   if(nRet != SUCCESS) 
      return nRet; 
 
   return SUCCESS; 
}

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