LDialogColor::DoModalBalanceColors

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#include "ltwrappr.h"

virtual L_INT LDialogColor::DoModalBalanceColors(hWndOwner)

HWND hWndOwner;

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

Displays the Balance Colors dialog box, and gets the options for LBitmap::BalanceColors. This function supports only RGB images. It does not support grayscale images.

Support for 48-bit and 64-bit colored images are available only in the 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

LDialogColor::SetBalanceColorsParams must be called before using this function to set the initial values for the dialog. You can get the updated BALANCECOLORSDLGPARAMS with the values entered by the user through the dialog by using LDialogColor::GetBalanceColorsParams.

The Balance Colors dialog.

Required DLLs and Libraries

LTDLGCLR
LTDLGKRN
LTDLGUTL
LTDLGCTRL
LTDLGCOM
LTDIS
LTIMGUTL
LTIMGCLR

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::BalanceColors
Topics:	Using Imaging Common Dialog

Example

L_INT LDialogColor_DoModalBalanceColorsExample(LBitmap * pBitmap, HWND hWnd)
{
   L_INT nRet;
   LDialogColor DlgColor;
   nRet = DlgColor.Initialize(DLG_INIT_COLOR );
   if(nRet != SUCCESS)
      return nRet;
   DlgColor.SetBitmap(pBitmap);
   BALANCECOLORSDLGPARAMS DlgParams ; 
   BALANCING              RedFactor ;
   BALANCING              GreenFactor ;
   BALANCING              BlueFactor ;
   memset ( &DlgParams, 0, sizeof ( BALANCECOLORSDLGPARAMS ) ) ;
   memset ( &RedFactor, 0, sizeof ( BALANCING ) ) ;
   memset ( &GreenFactor, 0, sizeof ( BALANCING ) ) ;
   memset ( &BlueFactor, 0, sizeof ( BALANCING ) ) ;
   DlgParams.uStructSize        = sizeof ( BALANCECOLORSDLGPARAMS ) ;
   DlgParams.RedFactor   = RedFactor ;
   DlgParams.GreenFactor = GreenFactor ;
   DlgParams.BlueFactor  = BlueFactor ;
   DlgColor.EnableCallBack (FALSE);
   DlgColor.EnablePreview(TRUE);
   DlgColor.EnableAutoProcess(TRUE);
   DlgColor.EnableToolbar(TRUE);
   nRet = DlgColor.SetBalanceColorsParams(&DlgParams) ;
   if(nRet != SUCCESS)
      return nRet;
   nRet = DlgColor.DoModalBalanceColors(hWnd);
   if(nRet < 1)
      return nRet;
   // Gets the updated values for the structure
   nRet = DlgColor.GetBalanceColorsParams(&DlgParams, sizeof(DlgParams)) ;
   if(nRet != SUCCESS)
      return nRet;
   nRet = DlgColor.Free();
   if(nRet != SUCCESS)
      return nRet;
   return nRet;
}