LDialogImageEffect::DoModalFreeHandWave

Summary

Displays the Free Hand Wave dialog box, and gets the options for LBitmap::FreeHandWave.

Syntax

virtual L_INT LDialogImageEffect::DoModalFreeHandWave(hWndOwner)

Parameters

HWND hWndOwner

Handle of the window which owns the dialog.

Returns

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.

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: distorts the image using a curve wave.

• 

  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:

• 

  Both. Flip the curve vertically and horizontally.

• 

  Vertically. Flip the curve vertically.

• 

  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
• LTIMGUTL
• LTIMGEFX
• LTIMGSFX
• 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

L_INT LDialogImageEffect_DoModalFreeHandWaveExample(LBitmap * pBitmap, HWND hWnd) 
{ 
   L_INT nRet; 
 
   LDialogImageEffect DlgImageEffect; 
 
   nRet = LDialogImageEffect::Initialize(0); 
   if(nRet != SUCCESS) 
      return nRet; 
 
   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); 
 
   nRet = DlgImageEffect.SetFreeHandWaveParams(&DlgParams); 
   if(nRet != SUCCESS) 
      return nRet; 
 
   nRet = DlgImageEffect.DoModalFreeHandWave(hWnd); 
   if(nRet < 1) 
      return nRet; 
 
   // Gets the updated values for the structure 
   nRet = DlgImageEffect.GetFreeHandWaveParams(&DlgParams, sizeof(DlgParams)); 
   if(nRet != SUCCESS) 
      return nRet; 
 
   nRet = LDialogImageEffect::Free(); 
   if(nRet != SUCCESS) 
      return nRet; 
 
   return SUCCESS; 
}