L_DlgWaveShear

L_INT EXT_FUNCTION L_DlgWaveShear(hWndOwner, pDlgParams)

HWND hWndOwner;	/* owner of dialog */
LPWAVESHEARDLGPARAMS pDlgParams;	/* pointer to a WAVESHEARDLGPARAMS structure */

Displays the Wave Shear dialog box, and gets the options for L_FreeHandShearBitmap. This function is available in the Raster Pro and above toolkits.

Parameter	Description
hWndOwner	Handle of the window which owns the dialog.
pDlgParams	Pointer to a WAVESHEARDLGPARAMS 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 dialog’s 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 Wave Shear dialog can be seen below:

$image\WaveShear.gif$

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:

- $image\Control_Curve_Mode_Curve.gif$ Curve: distorts the image using a curve wave.

- $image\Control_Curve_Mode_Linear.gif$ Linear: 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:

- $image\Control_Curve_Flip_Both.gif$ Both. Flip the curve vertically and horizontally.

- $image\Control_Curve_Flip_Vertically.gif$ Vertically. Flip the curve vertically.

- $image\Control_Curve_Flip_Horizontal.gif$ Horizontally. 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 "*.lsr" file that contains Shear Wave curve settings, using the Load dialog. The loaded file will set a new curve.

Note:

Loading curve settings will overwrite all current settings.

Save Button:

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

Required DLLs and Libraries

LTDLGIMGEFX
LTDLGKRN
LTDLGUTL
LTDLGCTRL
LTDLGCOM
LTDIS
LTIMG
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_FreeHandShearBitmap
Topics:	Dialogs: Artistic Effects
	Using Imaging Common Dialog
	Curve Control Dialog

Example

L_VOID ShowDialog ( HWND hWnd, pBITMAPHANDLE pBitmap )
{
   WAVESHEARDLGPARAMS DlgParams ;

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

   DlgParams.uStructSize     = sizeof ( WAVESHEARDLGPARAMS ) ;
   DlgParams.pBitmap   = pBitmap ;
   DlgParams.uDlgFlags = DLG_WAVESHEAR_SHOW_PREVIEW |
                                  DLG_WAVESHEAR_SHOW_TOOL_ZOOMLEVEL;

   L_DlgInit ( DLG_INIT_COLOR ) ;
   L_DlgWaveShear ( hWnd, &DlgParams ) ;
   if ( NULL != DlgParams.pAmplitudes )
   {
      GlobalFree ( DlgParams.pAmplitudes ) ;
   }

   L_DlgFree ( ) ;
} ;