L_VecDlgNewObject

Summary

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

Syntax

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

Parameters

L_HWND hWnd

Handle of the window that owns the dialog.

pVECTORHANDLE pVector

Pointer to the destination vector handle.

const pVECTORLAYER pLayer

Pointer to the destination vector layer. If this parameter is NULL, the object will be added to the current active layer of the specified vector handle.

L_INT nType

Object type. Possible values are:

L_VOID * pObjectDesc

Pointer to a structure that contains object information about the object to add. 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, default values 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.

pVECTOROBJECT pObject

Pointer to a VECTOROBJECT structure to be updated with the object information of the newly added object.

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_VecDlgEditObject.

Example

This example will add a new line object to the active layer of the given vector handle.

L_INT VecDlgNewObjectExample( 
   HWND hWnd, 
   pVECTORHANDLE pVector) 
{ 
   L_INT nRet; 
 
   nRet = L_VecDlgNewObject( 
      hWnd, 
      pVector, 
      NULL, 
      VECTOR_LINE, 
      NULL, 
      NULL, 
      VECTOR_DLG_AUTO_PROCESS, 
      NULL, 
      NULL); 
 
   return nRet; 
}