L_DlgHalftone

Show in webframe

#include "l_bitmap.h"

L_LTDLG_API L_INT L_DlgHalftone(hWndOwner, pDlgParams)

L_HWND hWndOwner;	/* owner of dialog */
LPHALFTONEDLGPARAMS pDlgParams;	/* pointer to a structure */

Displays the Halftone dialog box, and gets the options for L_HalfToneBitmap.

Parameter	Description
hWndOwner	Handle of the window which owns the dialog.
pDlgParams	Pointer to a HALFTONEDLGPARAMS structure to be updated with the values entered by the user, through the dialog. Set members of this structure, before calling this function, to set the dialogs initial values.

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

The Halftone dialog.

Required DLLs and Libraries

LTDLGCLR
LTDLGKRN
LTDLGUTL
LTDLGCTRL
LTDLGCOM
LTDIS
LTIMGUTL
LTIMGCOR
LTKRN

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:	L_DlgInit, L_HalfToneBitmap
Topics:	Dialogs: Color Manipulation
	Using Imaging Common Dialog

Example

 L_INT ShowDlgHalftoneExample(HWND hWnd,pBITMAPHANDLE pBitmap)
{
   L_INT nRet;
   HALFTONEDLGPARAMS DlgParams ;

   memset ( &DlgParams, 0, sizeof ( HALFTONEDLGPARAMS ) ) ;

   DlgParams.uStructSize = sizeof ( HALFTONEDLGPARAMS );
   DlgParams.pBitmap     = pBitmap ;
   DlgParams.nAngle      = 5 ;
   DlgParams.uDim        = 5 ;
   DlgParams.uType       = HT_RECT ;
   DlgParams.uDlgFlags   = DLG_HALFTONE_SHOW_PREVIEW        |
                           DLG_HALFTONE_SHOW_TOOL_ZOOMLEVEL ;

   nRet = L_DlgInit ( DLG_INIT_COLOR ) ;
   if(nRet != SUCCESS && nRet != ERROR_DLG_ALREADYINITIATED)
      return nRet;
   nRet = L_DlgHalftone(hWnd, &DlgParams ) ;
   if(nRet < 1)
      return nRet;
   nRet = L_DlgFree();
   if(nRet != SUCCESS)
      return nRet;
   return SUCCESS;
};