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LDialogWeb::DoModalHTMLMapper

Summary

Displays the HTML Map Creator dialog, in order to create an HTML map upon an image. Use this dialog to create an HTML map area using the given bitmap.

Syntax

#include "ltwrappr.h"

virtual L_INT LDialogWeb::DoModalHTMLMapper(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_CLOSE	The "Close" 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

LDialogWeb::SetHTMLMapperParams must be called before using this function to set the initial values for the dialog. You can get the updated HTMLMAPPERDLGPARAMS with the values entered by the user through the dialog by using LDialogWeb::GetHTMLMapperParams.

The HTML Map Creator dialog.

This dialog also offers tuning options for the output bitmap through the dialogs displayed using LDialogWeb::DoModalJPEGWebTuner, LDialogWeb::DoModalGIFWebTuner and LDialogWeb::DoModalPNGWebTuner.

Required DLLs and Libraries

LTDLGWEB
LTDLGKRN
LTDLGUTL
LTDLGCTRL
LTDLGCOM
LTFIL
LTDIS
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

Example

// Example 1 
L_INT LDialogWeb_DoModalHTMLMapperExample_1(LBitmap * pBitmap, HWND hWnd)  
{ 
   L_INT nRet = 0;  
 
   LDialogWeb DlgWeb;  
 
   HTMLMAPPERDLGPARAMS DlgParams;  
 
   DlgWeb.SetBitmap (pBitmap);  
 
   memset ( &DlgParams, 0, sizeof (HTMLMAPPERDLGPARAMS) ) ;  
 
   nRet = LDialogWeb::Initialize (0);  
   if(nRet != SUCCESS) 
      return nRet; 
 
   DlgParams.uStructSize      = sizeof (HTMLMAPPERDLGPARAMS ) ;  
 
   nRet = DlgWeb.SetHTMLMapperParams(&DlgParams) ;  
   if(nRet != SUCCESS) 
      return nRet; 
 
   nRet = DlgWeb.DoModalHTMLMapper (hWnd);  
   if(nRet < 1) 
      return nRet; 
 
   // Gets the updated values for the structure 
   nRet = DlgWeb.GetHTMLMapperParams (&DlgParams, sizeof(DlgParams)) ;  
   if(nRet != SUCCESS) 
      return nRet; 
 
   nRet = LDialogWeb::Free (); 
   if(nRet != SUCCESS) 
      return nRet; 
 
   return SUCCESS; 
} 
 
// Example 2 
L_VOID AllocHistoryEntries(LPDLGHISTORYLIST pHistoryEntries) 
{ 
   if ( NULL != pHistoryEntries )  
   { 
      pHistoryEntries->ppszEntry = (L_TCHAR**)malloc ( pHistoryEntries->nEntryCount * sizeof ( L_TCHAR* ) ) ;  
      if ( NULL != pHistoryEntries->ppszEntry )  
      { 
         int nIndex ;  
         for ( nIndex = 0; nIndex < pHistoryEntries->nEntryCount; nIndex++ )  
         { 
            pHistoryEntries->ppszEntry [ nIndex ] = NULL ;  
         } 
 
         for ( nIndex = 0; nIndex < pHistoryEntries->nEntryCount; nIndex++ )  
         { 
            pHistoryEntries->ppszEntry [ nIndex ] = (L_TCHAR*) malloc ( pHistoryEntries->nEntryLength * sizeof ( L_TCHAR ) ) ;  
            if ( NULL != pHistoryEntries->ppszEntry [ nIndex ] )  
            { 
               *pHistoryEntries->ppszEntry [ nIndex ] = 0 ;  
            } 
         } 
      } 
   } 
} 
 
 
L_VOID DeallocHistoryEntries (LPDLGHISTORYLIST pHistoryEntries )  
{ 
   // clean up 
   if ( NULL != pHistoryEntries->ppszEntry )  
   { 
      for ( int nIndex = 0; nIndex < pHistoryEntries->nEntryCount; nIndex++ )  
      { 
         if ( NULL != pHistoryEntries->ppszEntry [ nIndex ] )  
         { 
            free ( pHistoryEntries->ppszEntry [ nIndex ] ) ;  
         } 
      } 
      free ( pHistoryEntries->ppszEntry ) ;  
   } 
} 
 
L_INT LDialogWeb_DoModalHTMLMapperExample_2(LBitmap * pBitmap, HWND hWnd)  
{ 
   L_INT nRet = 0;  
   LDialogWeb DlgWeb;  
   HTMLMAPPERDLGPARAMS DlgParam;  
   DLGHISTORYLIST HistoryList ;  
 
   // init history buffer 
   HistoryList.uStructSize      = sizeof ( DLGHISTORYLIST ) ;  
   HistoryList.nEntryCount      = 5 ;  
   HistoryList.nValidEntryCount = 0 ;  
   HistoryList.nEntryLength     = 15 ;  
 
   AllocHistoryEntries ( &HistoryList ) ;  
 
   // init dialog params 
   memset ( &DlgParam , 0, sizeof ( HTMLMAPPERDLGPARAMS ) ) ;  
   DlgParam.uStructSize = sizeof ( HTMLMAPPERDLGPARAMS ) ;  
   DlgParam.uDlgFlags   = 0 ;  
   DlgParam.pURLEntries = &HistoryList ;  
 
   // show the dialog    
   nRet = LDialogWeb::Initialize (0);  
   if(nRet != SUCCESS) 
      return nRet; 
 
   DlgWeb.SetBitmap (pBitmap);  
 
   nRet = DlgWeb.SetHTMLMapperParams (&DlgParam) ;  
   if(nRet != SUCCESS) 
      return nRet; 
 
   nRet = DlgWeb.DoModalHTMLMapper(hWnd);  
   if(nRet < 1) 
      return nRet; 
 
   // Gets the updated values for the structure 
 
   nRet = DlgWeb.GetHTMLMapperParams (&DlgParam, sizeof(DlgParam)) ;  
   if(nRet != SUCCESS) 
      return nRet; 
 
   nRet = LDialogWeb::Free (); 
   if(nRet != SUCCESS) 
      return nRet; 
 
   // clean up 
 
   DeallocHistoryEntries ( &HistoryList ) ;  
 
   return SUCCESS; 
}