Incorrect bounding box of CXTPPropertyGridItem

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   Hello,

I'd like to ask you if there is a reason why CXTPPropertyGridItem::OnDrawItemValue() and CXTPPropertyGridItem::GetValueRect() use different-height rectangles?

The documentation says:

virtual BOOL OnDrawItemValue(    CDC& dc, CRect rcValue);

    rcValue - Bounding rectangle of the item.

virtual CRect GetValueRect();
    Returns - A CRect object that 
represents the bounding rectangle of the item value's text.

So both rects should be a bounding box of the value part, shouldn't they?
However, in my override of CXTPPropertyGridItem class, in OnDrawItemValue() I get a height which is different from what GetValueRect() returns -- this makes my owner-drawn propertygrid items look strange (jumping one pixel up and down sometimes, according to some special actions I use).

Can you please explain why the rectangles are different?

Or is this simply a bug? Is there a solution for this (using XTP v11.1)?

Thank you, in advance!

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akur Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 16 May 2006 Status: Offline Points: 139	Post Options Post Reply Quote akur Report Post Thanks(0) Quote Reply Topic: Incorrect bounding box of CXTPPropertyGridItem Posted: 07 May 2007 at 8:02am
	Hello, I'd like to ask you if there is a reason why CXTPPropertyGridItem::OnDrawItemValue() and CXTPPropertyGridItem::GetValueRect() use different-height rectangles? The documentation says: virtual BOOL OnDrawItemValue( CDC& dc, CRect rcValue); rcValue - Bounding rectangle of the item. virtual CRect GetValueRect(); Returns - A CRect object that represents the bounding rectangle of the item value's text. So both rects should be a bounding box of the value part, shouldn't they? However, in my override of CXTPPropertyGridItem class, in OnDrawItemValue() I get a height which is different from what GetValueRect() returns -- this makes my owner-drawn propertygrid items look strange (jumping one pixel up and down sometimes, according to some special actions I use). Can you please explain why the rectangles are different? Or is this simply a bug? Is there a solution for this (using XTP v11.1)? Thank you, in advance!

Oleg Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 21 May 2003 Location: United States Status: Offline Points: 11234	Post Options Post Reply Quote Oleg Report Post Thanks(0) Quote Reply Posted: 07 May 2007 at 8:12am
	Hello, for OnDrawItemValue doesn't used bottom line. you can add in your code CRect rcBound(rcValue); rcBound.bottom++;
	Oleg, Support Team CODEJOCK SOFTWARE SOLUTIONS

akur Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 16 May 2006 Status: Offline Points: 139	Post Options Post Reply Quote akur Report Post Thanks(0) Quote Reply Posted: 07 May 2007 at 8:15am
	I see. And can I rely on that this line will be always exactly 1 pixel high - with all the different themes and styles a PropertyGrid can have?