IC Imaging Control C++

OverlayBitmap::drawFrameRect Method

OverlayBitmap::drawFrameRect Method

Draws the frame of a rectangle on the live video.
Syntax:
bool drawFrameRect( COLORREF color, const RECT& rect );
Parameter Description
color

Specifies the color of the frame of the rectangle. The color can be specified with the RGB macro.

rect

The rectangle to be drawn in pixel coordinates. A CRect object or a RECT structure can be passed for this parameter.

Return value:

true on success, false otherwise.

Information:

Introduced in version 2.0

Sample:

This example demonstrates how draw two rectangles on the live video stream.

smart_ptr<DShowLib::OverlayBitmap> pOverlayBitmap;
pOverlayBitmap = m_Grabber.getOverlay();
if( pOverlayBitmap->canRender() == true)
{
    // Make sure, the overlay is enabled.
    pOverlayBitmap->setEnable(true);
 
    // Draw a rectangle in magenta, using a CRect object.
    pOverlayBitmap->drawFrameRect( RGB(255,0,255),
                                  CRect(100,50,50,25));
 
    // Draw a rectangle in blue, using a RECT structure.
    RECT rectangle;
    rectangle.left   = 160;
    rectangle.right  = 200;
    rectangle.top    = 160;
    rectangle.bottom = 180;
    pOverlayBitmap->drawFrameRect( RGB(0,0,255),    rectangle);
}
See also: OverlayBitmap, OverlayBitmap::drawText, OverlayBitmap::drawLine, OverlayBitmap::drawSolidRect, OverlayBitmap::drawSolidEllipse, OverlayBitmap::drawFrameEllipse

<< OverlayBitmap

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