References ▼
#include "ltwrappr.h"
virtual L_INT LDialogColor::DoModalHistoContrast(hWndOwner)
Displays the HistoContrast dialog box, and gets the options for LBitmap::HistoContrast.
Handle of the window which owns the dialog.
| 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. |
LDialogColor::SetHistoContrastParams must be called before using this function to set the initial values for the dialog. You can get the updated HISTOCONTRASTDLGPARAMS with the values entered by the user through the dialog by using LDialogColor::GetHistoContrastParams.
The HistoContrast dialog.
Required DLLs and Libraries
L_INT LDialogColor_DoModalHistoContrastExample(LBitmap * pBitmap, HWND hWnd){L_INT nRet;LDialogColor DlgColor;nRet = DlgColor.Initialize(DLG_INIT_COLOR );if(nRet != SUCCESS)return nRet;DlgColor.SetBitmap(pBitmap);HISTOCONTRASTDLGPARAMS DlgParams;memset ( &DlgParams, 0, sizeof ( HISTOCONTRASTDLGPARAMS ) ) ;DlgParams.uStructSize = sizeof ( HISTOCONTRASTDLGPARAMS ) ;DlgColor.EnableCallBack (FALSE);DlgColor.EnablePreview(TRUE);DlgColor.EnableAutoProcess(TRUE);DlgColor.EnableToolbar(TRUE);nRet = DlgColor.SetHistoContrastParams(&DlgParams) ;if(nRet != SUCCESS)return nRet;nRet = DlgColor.DoModalHistoContrast(hWnd);if(nRet < 1)return nRet;// Gets the updated values for the structurenRet = DlgColor.GetHistoContrastParams(&DlgParams, sizeof(DlgParams)) ;if(nRet != SUCCESS)return nRet;nRet = DlgColor.Free();if(nRet != SUCCESS)return nRet;return nRet;}