L_VecDlgEditObject

#include "lvdlg.h"

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

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

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:

Value Meaning
VECTOR_ARC Arc.
VECTOR_CHORD Chord.
VECTOR_CLONE Clone object of a vector group.
VECTOR_CIRCLE Circle.
VECTOR_ELLIPSE Ellipse.
VECTOR_ELLIPTICALARC Elliptical arc.
VECTOR_LINE Line.
VECTOR_PIE Pie section.
VECTOR_POLYBEZIER Poly Bezier curve.
VECTOR_POLYDRAW Polydraw.
VECTOR_POLYGON Polygon.
VECTOR_POLYLINE Polyline.
VECTOR_RASTER Raster.
VECTOR_RECTANGLE Rectangle.
VECTOR_TEXT Text.
VECTOR_VERTEX 3D vertex in space.

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.

Value Meaning
VECTOR_DLG_AUTO_PROCESS [0x80000000] Process the vector on OK.
VECTOR_DLG_ENABLE_HELPBUTTON [0x00000002] Enable Help button.

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

Value Meaning
SUCCESS The function was successful.
< 1 An error occurred. Refer to Return Codes.

Comments

Required DLLs and Libraries

See Also

Functions

Topics

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; 
} 

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