I have a picture box with an image without background but it only takes the color of the form as background

Question

I'm doing the table game battleship, by moving pictures boxes with the mouse, the problem is that all the picture boxes that I have contain an image without background, but i have the problem that when I move it through different points, it shows a default background instead of showing the background of the "map". This messes the aspect of the game table.

I've tried this code in my program ,but it makes the ships default position is in the panel(which I do not want) and it doesn't solve the problem I described earlier (when you move ships over the others spaces)

Barco1.Parent = panel1;
Barco1.BackColor = Color.Transparent;

An example of one of the ships

Check out this https://stackoverflow.com/questions/19910172/how-to-make-picturebox-transparent — Hadi Fooladi Talari, Nov 27 '18 at 19:17
There is no concept of one control being "behind" another in Winforms. They are all siblings and the form is the parent, so that is what shows. — Ňɏssa Pøngjǣrdenlarp, Nov 27 '18 at 19:19
But this could be done to all the pictureboxes (I mean that first one for example with the other 3 and the panel), and while I'm moving it? — Ivan Luque Garcia, Nov 27 '18 at 19:22
That is how 'transparency' in winforms work: By faking it by coping the parent's surface..But Pbox is no container so you need code to make it thw parent of a a control: control.Parent = pbox; control.Location = ... - But: Do the images really have a transparent background? Can you post one? — TaW, Nov 27 '18 at 19:48
The image is fine indeed. Are you sure about the form color? for testing set form color to eg pink and report back. So the blue map is diplayed in panel1, right? I don't see you setting the location, btw.. This really ought to work! If it doesn't maybe some piece of code from testing messes things up.. — TaW, Nov 27 '18 at 21:55
In one comment you wrote 'moving though different pictureboxes'. What does that mean?? Explain your set up more clearly!! — TaW, Nov 27 '18 at 23:17
That the other ships on the game are all pictureboxes, and if I pass through them, that it doesn't anything weird due to the background not being transparent — Ivan Luque Garcia, Nov 29 '18 at 07:02
I am, putting starting points, maybe on the panel it's no fixed by code, only by the settings of the panel — Ivan Luque Garcia, Nov 29 '18 at 07:06
In the my soution is to not use a panel, instead via photoshop I've puted the table exactly where I want in a png, and I use this image as background ,then the transparency works. — Ivan Luque Garcia, Dec 10 '18 at 10:31

score 0 · Answer 1 · answered Nov 27 '18 at 19:38

0

As you can see in the picture, there are:

Form with a BackgroundImage,
Panel with BackColor = Color.Transparent and BackgroundImage = some-image and
PictureBox with BackColor = Color.Transparent and an image as its Image property.

It should work for you.

answered Nov 27 '18 at 19:38

Mohi

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But here there no transition of backgrounds which is what happens when i'm moving it with the mouse throught different pictures boxes – Ivan Luque Garcia Nov 27 '18 at 21:18
So there is rendering problem. try double-buffer the objects as described in this post https://stackoverflow.com/a/220166/3764165 – Mohi Nov 28 '18 at 10:00

score -1 · Answer 2 · answered Nov 27 '18 at 21:13

-1

It looks like You are setting the Image background as Transparent but You are adding that Image into another Panel!

Barco1.Parent = panel1;

So, Set the Background Color of the Panel1 as Transparent:

panel1.BackgroundColor=Color.Transparent;

answered Nov 27 '18 at 21:13

N Subedi

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I've tried this lines before, but it changes the origin point of the picture box, that without this line would be on the left of the panel but with that line it put it on the panel(which I really don't want) and also makes some weird when moving with the when running the programme – Ivan Luque Garcia Nov 27 '18 at 21:26

I have a picture box with an image without background but it only takes the color of the form as background

2 Answers2