LDialogDocument::DoModalInvertedText

#include "ltwrappr.h"

virtual L_INT LDialogDocument::DoModalInvertedText(hWndOwner)

HWND hWndOwner;

/* handle of the window which owns the dialog*/

Displays the Inverted Text dialog box, and gets the options for LBitmap::InvertedText. This function is available in the Document/Medical toolkits.

Parameter

Description

hWndOwner

Handle of the window which owns the dialog.

Returns

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

LDialogDocument::SetInvertedTextParams must be called before using this function to set the initial values for the dialog. You can get the updated INVERTEDTEXTDLGPARAMS with the values entered by the user through the dialog by using LDialogDocument::GetInvertedTextParams.

The LBitmap::InvertedText function only works with 1-bit images. If you provide a bitmap in the LDialogDocument class, it must be a 1-bit bitmap.

The Inverted Text dialog.

Required DLLs and Libraries

LTDLGIMGDOC
LTDLGKRN
LTDLGUTL
LTDLGCTRL
LTDLGCOM
LTDIS
LTIMGUTL
LTIMGCOR

For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application

See Also

Functions:

LDialogBase::Initialize, LBitmap::InvertedText

Topics:

Using Imaging Common Dialog

Example

L_INT LDialogDocument_DoModalInvertedTextExample(LBitmap * pBitmap, HWND hWnd)
{
   L_INT nRet;
   LDialogDocument DlgDocument;
   nRet = LDialogDocument::Initialize(0);
   if(nRet != SUCCESS)
      return nRet;
   DlgDocument.SetBitmap(pBitmap);
   LBitmap BitmapRegion;
   INVERTEDTEXTDLGPARAMS DlgParams; 
   memset ( &DlgParams, 0, sizeof ( INVERTEDTEXTDLGPARAMS ) ) ;
   nRet = BitmapRegion.Initialize ();
   if(nRet != SUCCESS)
      return nRet;
   DlgParams.uStructSize                     = sizeof ( INVERTEDTEXTDLGPARAMS ) ;
   DlgParams.InvertedText.uStructSize        = sizeof ( INVERTEDTEXT ) ;
   DlgParams.InvertedText.pBitmapRegion      = BitmapRegion.GetHandle ();
   DlgParams.InvertedText.uBitmapStructSize  = sizeof ( BITMAPHANDLE );
   DlgParams.InvertedText.iMinInvertHeight   = 1 ;
   DlgParams.InvertedText.iMinInvertWidth    = 1 ;
   DlgParams.InvertedText.uFlags             = INVERTEDTEXT_USE_DIAGONALS | INVERTEDTEXT_USE_DPI ;
   DlgDocument.EnableCallBack (FALSE);
   DlgDocument.EnablePreview(TRUE);
   DlgDocument.EnableAutoProcess(TRUE);
   DlgDocument.EnableToolbar(TRUE);
   nRet = DlgDocument.SetInvertedTextParams(&DlgParams) ;
   if(nRet != SUCCESS)
      return nRet;
   nRet = DlgDocument.DoModalInvertedText(hWnd);
   if(nRet < 1)
      return nRet;
   if(BitmapRegion.HasRgn())
   {
      nRet = BitmapRegion.Region()->Free();
      if(nRet != SUCCESS)
         return nRet;
   }
   // Gets the updated values for the structure
   nRet = DlgDocument.GetInvertedTextParams(&DlgParams, sizeof(DlgParams)) ;
   if(nRet != SUCCESS)
      return nRet;
   nRet = LDialogDocument::Free();
   if(nRet != SUCCESS)
      return nRet;
   return nRet;
}