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L_DlgFreeHandWave

Summary

Displays the Free Hand Wave dialog box, and gets the options for L_FreeHandWaveBitmap.

Syntax

#include "l_bitmap.h"

L_LTDLG_API L_INT L_DlgFreeHandWave(hWndOwner, pDlgParams)

Parameters

L_HWND hWndOwner

Handle of the window which owns the dialog.

LPFREEHANDWAVEDLGPARAMS pDlgParams

Pointer to a FREEHANDWAVEDLGPARAMS 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.

Comments

The Free Hand Wave dialog.

This dialog has the following fields:

Curve Mode Drop-down list box:

Use this to select the curve mode to use. There are two choices:

Curve

$image\Control_Curve_Mode_Curve.gif$

: distorts the image using a curve wave.

Linear

$image\Control_Curve_Mode_Linear.gif$

: distorts the image using a linear wave.

Flip Buttons:

Use these buttons to flip the curve if the Curve Mode is either Curve or Linear. The following options are available:

Both

$image\Control_Curve_Flip_Both.gif$

: Flip the curve vertically and horizontally.

Vertically

$image\Control_Curve_Flip_Vertically.gif$

: Flip the curve vertically.

Horizontally

$image\Control_Curve_Flip_Horizontal.gif$

: Flip the curve horizontally.

Reset Button:

Use the Reset button to set the curve to its default values.

Load Button:

Use the Load button to load an "*.lhw" file that contains Hand Wave curve settings and the angle setting, using the Load dialog. The loaded file will set new curve and angle settings.

✎ NOTE

Loading curve and angle settings will overwrite all current curve and angle settings!

Save Button:

Use the Save button to save the curve and angle settings into an "*.lhw" file. This allows you set the same curve and angle settings for other images by re-loading the file.

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.

Required DLLs and Libraries

LTDLGIMGEFX
LTDLGKRN
LTDLGUTL
LTDLGCTRL
LTDLGCOM
LTDIS
LTIMGUTL
LTIMGEFX
LTIMGSFX
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

Example

L_INT DLGFreeHandWaveExample(HWND hWnd,pBITMAPHANDLE pBitmap) 
{ 
   L_INT nRet; 
   FREEHANDWAVEDLGPARAMS DlgParams ; 
 
   memset ( &DlgParams, 0, sizeof ( FREEHANDWAVEDLGPARAMS ) ) ; 
 
   DlgParams.uStructSize         = sizeof ( FREEHANDWAVEDLGPARAMS ) ; 
   DlgParams.pBitmap             = pBitmap ; 
   DlgParams.uScale              = 10 ; 
   DlgParams.uWaveLen            = 5 ; 
   DlgParams.uFreeHandWaveFlags  = FILL_CLR | DIS_FRQ ; 
   DlgParams.nAngle              = 4500 ; 
   DlgParams.crFill              = RGB ( 200, 0, 0 ) ; 
   DlgParams.uDlgFlags           = DLG_FREEHANDWAVE_SHOW_PREVIEW        | 
                                   DLG_FREEHANDWAVE_SHOW_TOOL_ZOOMLEVEL ; 
 
   nRet = L_DlgInit( DLG_INIT_COLOR ) ; 
   if(nRet != SUCCESS && nRet != ERROR_DLG_ALREADYINITIATED) 
      return nRet; 
   nRet = L_DlgFreeHandWave ( hWnd, &DlgParams ) ; 
   if(nRet < 1) 
      return nRet; 
   if ( NULL != DlgParams.pAmplitudes ) 
   { 
      GlobalFree ( DlgParams.pAmplitudes ) ; 
   } 
   nRet = L_DlgFree () ; 
   if(nRet != SUCCESS) 
      return nRet; 
   return SUCCESS; 
}