ToolButton image disappears when pressed (ver. 7.0)

[Marek J.]

Add ToolButton to TrzToolbar.

Set TRzToolbar.VisualStyle=vsGradient

Set ToolButton.ToolStyle=tsDropDown

Set ToolButton.VisualStyle=vsGradient

Define any popup menu PopupMenu1 and set ToolButton.DropDownMenu=PopupMenu1

Run the program.

The button in the toolbar is OK:

Now click on the button:

The image of the button is not visible.

Greetings,

Marek

[Ray Konopka]

Hi Marek,

Thanks for the report. I am able to duplicate the issue. I’ll have to dig into the changes that Embarcadero made for version 7 to see what is going on. I am also finding out from Embarcadero how customers should report bugs (like this) on the components.

Ray

[Marek J.]

For me the following change works:

procedure TRzToolButton.DrawArrow;

……

else { FState = tbsDropDown }

…..

// must be commented   PaintGradient( Canvas, R, gdHorizontalEnd, C2, C1 );

 

Ray, I need two minutes to write some post here.

I’ve tried Embarcadero several times and it just doesn’t work. Jira hangs up.

 

[Ray Konopka]

Hi Marek,

I’m sorry to hear you are having issue with Embarcadero’s Quality Portal (i.e. Jira). I have not had those experiences.

As for your fix, that is interesting. I’ll have to look more closely at the code when I get some time, but I find it odd that the PaintGradient call is causing the problem. I suspect it is masking something else.

Ray

[Tom Chamberlain]

We are having the same problem, but only for buttons that do not have an action attached to them. So instead of commenting out code in the component, we implemented a little hack: (force the dodropdown)

THackRZButton = class(TRZToolButton)
public
Procedure DoDropDown; override;
end;

procedure THackRZButton.DoDropDown;
begin
inherited DoDropDown;
end;

Then add the onclick event (not an action) to the button itself and call the hack to force the dropdown:

THackRzButton(Sender).DoDropDown;

This works for us, gives the same results as the original TToolbar we are replacing because it doesn’t work correctly under High-DPI.

[Author]

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