L_DlgLaplacianFilter (original) (raw)
Summary
Displays the Laplacian Filter dialog box, and gets the options for L_SpatialFilterBitmap.
Syntax
#include "l_bitmap.h"
L_LTDLG_API L_INT L_DlgLaplacianFilter (hWndOwner, pDlgParams)
Parameters
L_HWND hWndOwner
Handle of the window which owns the dialog.
LPLAPLACIANFILTERDLGPARAMS pDlgParams
Pointer to a LAPLACIANFILTERDLGPARAMS 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
| 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
Required DLLs and Libraries
- LTDLGIMGEFX
- LTDLGKRN
- LTDLGUTL
- LTDLGCTRL
- LTDLGCOM
- LTDIS
- LTIMGUTL
- LTIMGEFX
- 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_SpatialFilterBitmap
- L_DlgGradientFilter
- L_DlgSobelFilter
- L_DlgPrewittFilter
- L_DlgLineSegmentFilter
Topics
Example
L_INT DLGLaplacianFilterExample(HWND hWnd,pBITMAPHANDLE pBitmap)
{
L_INT nRet;
LAPLACIANFILTERDLGPARAMS DlgParams ;
memset ( &DlgParams, 0, sizeof ( LAPLACIANFILTERDLGPARAMS ) ) ;
DlgParams.uStructSize = sizeof ( LAPLACIANFILTERDLGPARAMS ) ;
DlgParams.pBitmap = pBitmap ;
DlgParams.pFilter = FLT_LAPLACE_3 ;
DlgParams.uDlgFlags = DLG_LAPLACIANFILTER_SHOW_PREVIEW |
DLG_LAPLACIANFILTER_SHOW_TOOL_ZOOMLEVEL ;
nRet = L_DlgInit ( DLG_INIT_COLOR ) ;
if(nRet != SUCCESS && nRet != ERROR_DLG_ALREADYINITIATED)
return nRet;
nRet = L_DlgLaplacianFilter ( hWnd, &DlgParams ) ;
if(nRet < 1)
return nRet;
nRet = L_DlgFree () ;
if(nRet != SUCCESS)
return nRet;
return SUCCESS;
}