LDialogImageEffect::DoModalFreeHandWave

#include "ltwrappr.h"

virtual L_INT LDialogImageEffect::DoModalFreeHandWave(hWndOwner)

HWND hWndOwner;

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

Displays the Free Hand Wave dialog box, and gets the options for LBitmap::FreeHandWave. This function is available in the Raster Pro and above 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

LDialogImageEffect::SetFreeHandWaveParams must be called before using this function to set the initial values for the dialog. You can get the updated FREEHANDWAVEDLGPARAMS with the values entered by the user through the dialog by using LDialogImageEffect::GetFreeHandWaveParams.

The Free Hand Wave dialog is shown in the following figure:

$image\FreeHandWave.gif$

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 "*.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.

Required DLLs and Libraries

LTDLGIMGEFX
LTDLGKRN
LTDLGUTL
LTDLGCTRL
LTDLGCOM
LTDIS
LTIMG

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::FreeHandWave, LBase::EnableCallBack, LDialogBase::EnablePreview, LDialogBase::EnableAutoProcess, LDialogBase::EnableToolbar, LDialogBase::Free, LDialogImageEffect::SetFreeHandWaveParams, LDialogImageEffect::GetFreeHandWaveParams
Topics:	Using Imaging Common Dialog
	Curve Control

Example

void TestFunction(LBitmap * pBitmap, HWND hWnd)
{
   LDialogImageEffect DlgImageEffect;
   LDialogImageEffect::Initialize(0);
   DlgImageEffect.SetBitmap(pBitmap);

   FREEHANDWAVEDLGPARAMS DlgParams;

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

   DlgParams.uStructSize      = sizeof ( FREEHANDWAVEDLGPARAMS );
   DlgParams.uScale             = 10;
   DlgParams.uWaveLen           = 5;
   DlgParams.uFreeHandWaveFlags = FILL_CLR | DIS_FRQ;
   DlgParams.nAngle             = 4500;
   DlgParams.crFill             = RGB ( 200, 0, 0 );

   DlgImageEffect.EnableCallBack(FALSE);
   DlgImageEffect.EnablePreview(TRUE);
   DlgImageEffect.EnableAutoProcess(TRUE);
   DlgImageEffect.EnableToolbar(TRUE);
   DlgImageEffect.SetFreeHandWaveParams(&DlgParams);
   DlgImageEffect.DoModalFreeHandWave(hWnd);

   // Gets the updated values for the structure
   DlgImageEffect.GetFreeHandWaveParams(&DlgParams, sizeof(DlgParams));
   LDialogImageEffect::Free();
}