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ID Category Severity Reproducibility Date Submitted Last Update
0003641 [JEDI VCL] 00 JVCL Components major always 2006-04-15 12:28 2006-04-30 06:50
Reporter kratsi View Status public  
Assigned To obones
Priority normal Resolution fixed Platform
Status resolved   OS
Projection none   OS Version
ETA none Fixed in Version 3.30 Product Version 3.20
  Target Version Product Build
Summary 0003641: TJvTransparentButton is not transparent when clicked
Description I have a problem with transparency in a TJvTransparentButton - during runtime, when I click a button it always shows the background that is not transparent. I tried to compile a demo included in the release - the same, background of the button is not transparent. Is this a correct behavior? I want to have a bitmap on the button and the rest of the button to remain transparent all the time not only when in an active state. I have downloaded the Megademo and buttons there are as I want them - showing only bitmaps all the time without the rest of the button. I attach a sample - click on the button : it is no longer transparent.
Proposed fix:
In procedure DrawTheBitmap in line 1184 change a line:

if (bsMouseInside in MouseStates) and ((bsMouseDown in MouseStates) or Down) then


if (bsMouseInside in MouseStates) and ((bsMouseDown in MouseStates) or Down) and not Transparent then

Now it works!

I don't know - maybe I do something wrong?
Steps To Reproduce
Additional Information
Tags No tags attached.
Attached Files ? file icon Project2.exe [^] (497,152 bytes) 2006-04-15 12:28
zip file icon [^] (349,319 bytes) 2006-04-18 01:28

- Relationships

-  Notes
obones (administrator)
2006-04-18 01:02

Please provide a zip file with the sources, the exe file is of no direct use to us.
kratsi (reporter)
2006-04-18 01:27

Sure. Here it is. The problem is just below the line with a comment {Norris} in function DrawTheBitmap. It draws a rectangle just before drawing the bitmap, when mouse is in the down state. Thats why I added not Transparent condition.
obones (administrator)
2006-04-19 03:15

Thanks, this is now fixed in SVN.
obones (administrator)
2006-04-27 05:37

Note: the fix was removed, its impacts were too great. If you want the desired effect, set the FrameStyle property to fsRegular.
Informatix (developer)
2006-04-27 07:44

The suggested fix works very well. The comment from Olivier (obones) is the reflect of my own stupidity. I'm really sorry.

- Issue History
Date Modified Username Field Change
2006-04-15 12:28 kratsi New Issue
2006-04-15 12:28 kratsi File Added: Project2.exe
2006-04-18 01:02 obones Note Added: 0009129
2006-04-18 01:02 obones Status new => feedback
2006-04-18 01:27 kratsi Note Added: 0009131
2006-04-18 01:28 kratsi File Added:
2006-04-19 03:15 obones Status feedback => resolved
2006-04-19 03:15 obones Resolution open => fixed
2006-04-19 03:15 obones Assigned To => obones
2006-04-19 03:15 obones Note Added: 0009140
2006-04-27 05:37 obones Note Added: 0009191
2006-04-27 05:37 obones Resolution fixed => won't fix
2006-04-27 07:44 Informatix Status resolved => feedback
2006-04-27 07:44 Informatix Resolution won't fix => reopened
2006-04-27 07:44 Informatix Note Added: 0009193
2006-04-30 06:50 Informatix Status feedback => resolved
2006-04-30 06:50 Informatix Resolution reopened => fixed

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