LVectorDialog::DoModalVectorNewObject

#include "ltwrappr.h"

virtual L_INT LVectorDialog::DoModalVectorNewObject(hWndParent, nType, pVectorLayer, pVectorObject);

virtual L_INT LVectorDialog::DoModalVectorNewObject(hWndParent, pVectorLayer, pVectorObject);

HWND hWndParent;	window handle
L_INT nType;	object type
LVectorLayer * pVectorLayer;	pointer to a vector layer object
LVectorObject * pVectorObject;	pointer to the new vector object

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

Parameter	Description
hWndParent	Handle of the window that owns the dialog.
pVectorLayer	Pointer to the destination vector layer. If this parameter is NULL, the object will be added to the active layer.
nType	Object type. Possible values are:
	Value	Meaning
	VECTOR_VERTEX	3D vertex in space.
	VECTOR_LINE	Line.
	VECTOR_RECTANGLE	Rectangle.
	VECTOR_POLYLINE	Polyline.
	VECTOR_POLYBEZIER	Poly Bezier curve.
	VECTOR_POLYGON	Polygon.
	VECTOR_ELLIPSE	Ellipse.
	VECTOR_CIRCLE	Circle.
	VECTOR_ARC	Arc.
	VECTOR_TEXT	Text.
	VECTOR_PIE	Pie section.
	VECTOR_CHORD	Chord.
	VECTOR_POLYDRAW	Polydraw.
	VECTOR_RASTER	Raster.
pVectorObject	Pointer to an LVectorObject object to be updated with the object information of the newly added vector object. For more information, refer to the Comments section below.

Returns

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

Comments

For LVectorDialog::DoModalVectorNewObject(hWndParent, nType, pVectorLayer, pVectorObject):

If pVectorObject == NULL then the object is added to the vector, but no object information is provided in pVectorObject (since it is NULL). The object type of the dialog is determined by nType

If pVectorObject != NULL then pVectorObject is updated with the object information entered through the dialog.

For LVectorDialog::DoModalVectorNewObject(hWndParent, pVectorLayer, pVectorObject):

If pVectorObject == NULL then the function returns an error. (WRPERR_INVALID_PARAMETERS).

If pVectorObject != NULL then the dialog is initialized using the data present in pVectorObject. When the function returns, pVectorObject is updated with the object information entered through the dialog..

Note: To get or set specific properties using LVectorObject::LockObject and LVectorObject::UnlockObject, the type of objectc pointed to by pVectorObject must be the same as the object type given in nType. For example, if nType is VECTOR_LINE, then pVectorObject must point to an LVectorLine object.

Required DLLs and Libraries

LVKRN
LVDLG
LTFIL

For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application.

Example

// This example will call the DoModalVectorNewObject() dialog to create a line object in active layer. 
// Line parameters are passed to initialize the dialog. 
L_INT LVectorDialog__DoModalVectorNewObjectExample_1(HWND hWnd, LVectorBase *pVector) 
{ 
   LVectorDialog VectorDlg; 
   VectorDlg.SetVector (pVector); 
   VectorDlg.EnablePreview (); 
   VectorDlg.EnableAutoProcess (); 
   VECTORLINE Line; 
   Line.Pen.nSize  = sizeof(VECTORPEN); 
   Line.Pen .bExtPen = FALSE; 
   Line.Pen.NewPen.LogPen.lopnStyle = PS_SOLID; 
   Line.Pen.NewPen.LogPen.lopnWidth.x = 10; 
   Line.Pen.NewPen.LogPen.lopnWidth.y = 10; 
   Line.Pen.NewPen.LogPen.lopnColor = RGB(255,0,0); 
   Line.Point[ 0 ].x = 50.0; 
   Line.Point[ 0 ].y = 50.0; 
   Line.Point[ 0 ].z =  0.0; 
   Line.Point[ 1 ].x =  70.0; 
   Line.Point[ 1 ].y =  50.0; 
   Line.Point[ 1 ].z =   0.0; 
   LVectorLine VectorLine(&Line); 
   L_INT nRet = VectorDlg.DoModalVectorNewObject(hWnd, NULL, &VectorLine); 
   if (nRet == SUCCESS) 
   { 
      L_TCHAR szMsg[200]; 
      //Get the line descriptor 
      VectorLine.LockObject(&Line); 
      VectorLine.UnlockObject (&Line); 
      wsprintf(szMsg, TEXT("Line Color[%x]\nLine Points (%d,%d,%d) - (%d,%d,%d)"), 
      Line.Pen.NewPen.LogPen.lopnColor, 
      (int)Line.Point[0].x, 
      (int)Line.Point[0].y, 
      (int)Line.Point[0].z, 
      (int)Line.Point[1].x, 
      (int)Line.Point[1].y, 
      (int)Line.Point[1].z); 
      MessageBox(hWnd, szMsg,TEXT(""), MB_OK); 
   } 
   else 
      return nRet; 
   return SUCCESS; 
} 
// This example will call the DoModalNewObject() dialog to create a line object in active layer. 
// Line parameters are defaulted. 
L_INT LVectorDialog__DoModalVectorNewObjectExample_2(HWND hWnd, LVectorBase *pVector) 
{ 
   LVectorDialog VectorDlg; 
   VectorDlg.SetVector (pVector); 
   VectorDlg.EnablePreview (); 
   VectorDlg.EnableAutoProcess (); 
   L_INT nRet = VectorDlg.DoModalVectorNewObject(hWnd, VECTOR_LINE, NULL, NULL); 
   return nRet; 
}

Help Version 19.0.2017.10.27

LEADTOOLS Vector C++ Class Library Help

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Appendix

Functions:	LVectorDialog::DoModalVectorEditObject, Class Members
Topics:	Vector CommonDialogs