ILText Interface Reference

This interface expose APIs to create/modify a drawable text object. More...

Inheritance diagram for ILText:

Public Member Functions
void	Draw (HDC hdc, double zoomX, double zoomY, double panX, double panY)

Properties
LPVAlignment	Alignment [get, set]
	The alignment of the text.
int	PosX [get, set]
	The x-coordinate of the position.
int	PosY [get, set]
	The y-coordinate of the position.
BSTR	Text [get, set]
	The text string.

Detailed Description

This interface expose APIs to create/modify a drawable text object.

To use this interface, you should create a LText object.

Example Code

C++

// lpvDisplay is a COM ActiveX library, it supports only COM interface
ILTextPtr myText = LText::Create();
// or, ILTextPtr myText(__uuidof(LText)), for absence of built-in Create functions (before 2.2.0)
myText->Text = L"My Text";
// put the text on (200, 200), center-aligned
myText->PosX = 200;
myText->PosY = 200;
myText->Alignment = LPVAlignCenter;
// change the color to red
((ILDrawablePtr)myText).SetPenColor(LPVColor.LPVRed));
// draw the text in the display control
displayCtrl->AddObject(myText, 0);
// or, draw it in your own device context
myText->Draw(hdc, zoomX, zoomY, panX, panY);

C#

LText myText = new LText();
myText.Text = "My Text";
// put the text on (200, 200), center-aligned
myText.PosX = 200;
myText.PosY = 200;
myText.Alignment = LPVAlignCenter;
// change the color to red
((ILDrawablePtr)myText).SetPenColor(LPVColor.LPVRed));
// draw the text in the display control
displayCtrl.AddObject(myText, 0);
// or, draw it in your own device context
myText.Draw(hdc, zoomX, zoomY, panX, panY);

COM

 ILTextPtr myText = LText::Create();
 // or, ILTextPtr myText(__uuidof(LText)), for absence of built-in Create functions (before 2.2.0)
 myText->Text = L"My Text";
 // put the text on (200, 200), center-aligned
 myText->PosX = 200;
 myText->PosY = 200;
 myText->Alignment = LPVAlignCenter;
 // change the color to red
*((ILDrawable)m_ytext).SetPenColor((uint)LPVColor.LPVRed);
 // draw the text in the display control
 displayCtrl->AddObject(myText, 0);
 // or, draw it in your own device context
 myText->Draw(hdc, zoomX, zoomY, panX, panY);

Note: This interface is currently not available on Linux / MacOS platform.

Member Function Documentation

Draw()

void Draw	(	HDC	hdc,
		double	zoomX,
		double	zoomY,
		double	panX,
		double	panY
	)

Draw the text onto provide device context.

See also

Use Draw Functions

Remarks

This function is currently not available on Linux / MacOS platform.

See also

Draw()