LDialogImageEffect::DoModalUnderlay

#include "ltwrappr.h"

virtual L_INT LDialogImageEffect::DoModalUnderlay(hWndOwner)

Displays the Underlay dialog box, and gets the options for LBitmapBase::Underlay.

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

The Underlay dialog.

Required DLLs and Libraries

See Also

Functions

Topics

Example

L_INT LDialogImageEffect_DoModalUnderlayExample(LBitmap * pBitmap, HWND hWnd) 
{ 
   L_INT nRet; 
 
   LDialogImageEffect DlgImageEffect; 
 
   nRet = LDialogImageEffect::Initialize(DLG_INIT_COLOR ); 
   if(nRet != SUCCESS) 
      return nRet; 
 
   DlgImageEffect.SetBitmap(pBitmap); 
 
   UNDERLAYDLGPARAMS DlgParams;  
   DLGBITMAPLISTITEM Items [ 1 ]; 
   DLGBITMAPLIST     BitmapList; 
   LBitmap TmpBitmap; 
 
   memset ( &DlgParams, 0, sizeof ( UNDERLAYDLGPARAMS ) ); 
 
   DlgParams. uStructSize = sizeof ( UNDERLAYDLGPARAMS ); 
 
   Items [ 0 ].pszFileName  = ( L_TCHAR * ) malloc ( sizeof ( L_TCHAR ) * L_MAXPATH ); 
 
   lstrcpy ( Items [ 0 ].pszFileName, MAKE_IMAGE_PATH(TEXT("ULAY1.BMP") ) ); 
 
   nRet = TmpBitmap.LoadResize (Items [ 0 ].pszFileName, 
                        100, 
                        0, 
                        24, 
                        0, 
                        ORDER_BGR, 
                        NULL, 
                        NULL ); 
   if(nRet != SUCCESS) 
      return nRet; 
 
   Items [ 0 ].pBitmap = TmpBitmap.GetHandle (); 
 
   BitmapList.uStructSize  = sizeof ( DLGBITMAPLIST ); 
   BitmapList.pBitmapList = Items; 
   BitmapList.nCount      = 1; 
 
   DlgParams.uUnderlayFlags       = UB_TILE; 
   DlgParams.nUnderlayBitmapIndex = 0; 
   DlgParams.pBitmapList          = &BitmapList; 
 
   DlgImageEffect.EnableCallBack (FALSE); 
   DlgImageEffect.EnablePreview(TRUE); 
   DlgImageEffect.EnableAutoProcess(TRUE); 
   DlgImageEffect.EnableToolbar(TRUE); 
 
   nRet = DlgImageEffect.SetUnderlayParams(&DlgParams); 
   if(nRet != SUCCESS) 
      return nRet; 
 
   nRet = DlgImageEffect.DoModalUnderlay(hWnd);  
   if(nRet < 1) 
      return nRet; 
 
   // Gets the updated values for the structure 
 
   nRet = DlgImageEffect.GetUnderlayParams(&DlgParams, sizeof(DlgParams)); 
   if(nRet != SUCCESS) 
      return nRet; 
 
   nRet = LDialogImageEffect::Free(); 
   if(nRet != SUCCESS) 
      return nRet; 
 
   nRet = TmpBitmap.Free(); 
   if(nRet != SUCCESS) 
      return nRet; 
 
   free ( Items [ 0 ].pszFileName ); 
 
   return SUCCESS; 
} 
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