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image in timage compoent won't go to transparent!
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Author
Topic: image in timage compoent won't go to transparent! (Read 2728 times)
Mariner1
Newbie
Posts: 1
image in timage compoent won't go to transparent!
«
on:
July 05, 2017, 05:39:01 am »
Hi All! New to all this. I put a timage on a form, loaded a bitmap, set transparent to true but don't get a transparent background. Can someone set me right on this? Thanks.
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Handoko
Hero Member
Posts: 4764
My goal: build my own game engine using Lazarus
Re: image in timage compoent won't go to transparent!
«
Reply #1 on:
July 05, 2017, 06:46:48 am »
Hello Mariner1,
Welcome to the forum.
Please provide your code and the image for use to check. It could be something wrong with your code or the image.
You can download and try my transparent.zip. I tested on Linux64, it worked correctly opening transparent png file.
Code: Pascal
[Select]
[+]
[-]
unit
Unit1
;
{$mode objfpc}{$H+}
interface
uses
SysUtils
,
Forms
,
Graphics
,
Dialogs
,
ExtCtrls
,
StdCtrls
;
type
{ TForm1 }
TForm1
=
class
(
TForm
)
btnBackground
:
TColorButton
;
btnLoad
:
TButton
;
Image1
:
TImage
;
OpenDialog1
:
TOpenDialog
;
procedure
btnBackgroundColorChanged
(
Sender
:
TObject
)
;
procedure
btnLoadClick
(
Sender
:
TObject
)
;
procedure
FormCreate
(
Sender
:
TObject
)
;
end
;
var
Form1
:
TForm1
;
implementation
{$R *.lfm}
{ TForm1 }
procedure
TForm1
.
btnLoadClick
(
Sender
:
TObject
)
;
begin
if
not
(
OpenDialog1
.
Execute
)
then
Exit
;
try
Image1
.
Picture
.
LoadFromFile
(
OpenDialog1
.
FileName
)
;
except
on E
:
Exception
do
ShowMessage
(
'Cannot open file.'
)
;
end
;
end
;
procedure
TForm1
.
FormCreate
(
Sender
:
TObject
)
;
begin
btnBackgroundColorChanged
(
Self
)
;
end
;
procedure
TForm1
.
btnBackgroundColorChanged
(
Sender
:
TObject
)
;
begin
Form1
.
Color
:
=
btnBackground
.
ButtonColor
;
end
;
end
.
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image in timage compoent won't go to transparent!
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