L_VecDlgEditObject

Summary

Brings up the Edit Object dialog. This function is available in the LEADTOOLS Vector Imaging Pro Toolkit.

Syntax

L_LVDLG_API L_INT L_VecDlgEditObject(hWnd, pVector, pObject, nType, pObjectDesc, dwFlags, pfnCallback, pUserData)

Parameters

L_HWND hWnd

Handle of the window that owns the dialog.

pVECTORHANDLE pVector

Pointer to the vector handle that contains the object to edit.

const pVECTOROBJECT pObject

Pointer to the vector object to be edited.

L_INT nType

Object type. Possible values are:

L_VOID * pObjectDesc

Pointer to a structure that contains object information about the object to edit. The values present in the structure when the function is called are used to initialize the dialog. If this parameter is NULL when the function is called, values from pObject will be used to initialize the dialog. When this function returns, if this parameter is not NULL, the structure will be updated with the values entered through the dialog.

L_UINT32 dwFlags

User interface flags for dialog. Determines the layout and action of the dialog.

LVCOMMDLGHELPCB pfnCallback

Pointer to an optional help callback function.

If you do not wish to provide help to this dialog, use NULL as the value of this parameter. To provide help to this dialog, use the function pointer as the value of this parameter. The callback function must adhere to the prototype described in LVCOMMDLGHELPCB.

L_VOID * pUserData

Void pointer that you can use to pass one or more additional parameters that the callback function needs.

To use this feature, assign a value to a variable or create a structure that contains as many fields as you need. Then, in this parameter, pass the address of the variable or structure, casting it to L_VOID *. The callback function, which receives the address in its own pUserData parameter, can cast it to a pointer of the appropriate data type to access your variable or structure. If the additional parameters are not needed, you can pass NULL in this parameter.

Returns

Comments

Required DLLs and Libraries

• LVDLG
• 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_VecDlgNewObject.

Topics

• Vector Common Dialogs

Example

This example will edit the object under the given point.

L_INT VecDlgEditObjectExample( 
   HWND hWnd, 
   pVECTORHANDLE pVector, 
   const POINT* ppt) 
{ 
   VECTOROBJECT   Object; 
   L_INT          nRet; 
 
   /* get the object under the point */ 
   nRet = L_VecHitTest ( pVector, ppt, &Object ); 
   if( nRet == SUCCESS ) 
   { 
      /* there was an object under the point, edit it */       
      nRet = L_VecDlgEditObject( 
         hWnd, 
         pVector, 
         &Object, 
         Object.nType, 
         NULL, 
         VECTOR_DLG_AUTO_PROCESS, 
         NULL, 
         NULL); 
   } 
 
   return nRet; 
}