Visual Basic :: Scaling A Picture To Fit Picturebox

Picturebox Scaling Problem
I have problem with drawing in picturebox with GDI API's. Like if I draw a polygon in a picturebox using "Polygon" API, the function does not have any effect of ScaleHeight and Scale With Properties of the picturebox. The polygon is drawn at real screen co-ordinates and I expect it to draw with size changed. However if I use the mthods of picturebox, like .circle or .line, the scalewidth and scaleheight does has effect on line and circle sizes.
Basically I am dealing with vector ZOOM over here.

Before Drawing, I am changing the scale of picturebox using .Scale method. Like...

VB Code:
picCanvas.Scale (0, 0)-(picCanvas.ScaleWidth / 1.5, picCanvas.ScaleHeight / 1.5)

And the API

VB Code:
Polygon picCanvas.hdc, Arr_Vertices(1), NumberOfVertices

How do I solve this problem so that Polygon also apperas to be zoomed according to scale of picturebox.

Large Picture - Small PictureBox. How To Drag Picture Around Inside Picturebox?
I have a picturebox that is limited in size on my form.
I have pictures that are larger than the picturebox.
Is there a way that I can drag the picture around inside the picturebox to see different parts of it?

Scaling PictureBox Control When Resizing Form
Hello:

I am working on an app which displays two distinct video previews within a form. I am using PictureBox controls to store the video previews. The problem I am having is when I attempt to resize the form. The original sample app only contained a single PictureBox and scaled based on the width and height of the form. Now I am trying to get it to work with two PictureBoxes using offsets to allow for the controls and the additional width that the second pictureBox requires. Has anyone out there worked on an app where they are scaling multiple PictureBoxes when resizing the form and come up with a solution for this? Any help would be appreciated. Thanks.

Scott

Scaling A Picture?
Hi all,

How do I scale a large picture so the picturebox decides the picture's size? That'll say that I want my little picturebox to scale a large picture

Thx

Scaling A Picture Box
Is there a way to set a picture box as -5 to 5 for both x and y values. In other words a square where the middle coordinate is (0,0) the top left would be (-5, 5), the bottom right would be (5,-5), etc?

Scaling Picture Box
I want the picture in the cell of the MSFlexgrid to resize to a smaller size than the original picture (picture box). For example, if the picture is 5000x5000 twips.....I would like just a thumbnail to show in the grid at 500x500.

I cannot seem to find a way to scale/stretch a picture inside the cell of a MSFlexgrid.

Problem With Picture Scaling
Hello every one

i was able to construct quadtree of binary shape the problem is ,i located the shape in bounding box to construct the quadtree in that area
the call to construct quadtree of bounding box

PHP Code:

'xmax ymax xmin.ymin the coordinates of Bounding box
Root.DivideNode xmin,xmax,ymin,ymax

the procedure to perform division

PHP Code:

Public Sub DivideNode(ByVal xmin As Single, ByVal xmax As Single, _
                       ByVal ymin As Single, ByVal ymax As Single)
Dim xmid As Single
Dim ymid As Single
Dim Obj As New PointItem

Dim i As Integer, sumX As Single, sumY As Single

'create children if the number of point is larger than MAX
If Items.Count <= MAX_PER_NODE Then Exit Sub

Set NWchild = New QuadtreeNode
Set NEchild = New QuadtreeNode
Set SWchild = New QuadtreeNode
Set SEchild = New QuadtreeNode

'Determine the center of mass by taking the avering of X,Y coordinate in the node

For i = 1 To Items.Count
Set Obj = Items.Item(i)
sumX = sumX + Obj.X
sumY = sumY + Obj.Y
Next
xmid = Int(sumX / i)
ymid = Int(sumY / i)
'xmid = (xmin + xmax) / 2
' ymid = (ymin + ymax) / 2

avgX = xmid
avgY = ymid

Do While Items.Count > 0

Set Obj = Items.Item(1)   'the first item in the collection to be placed in
                           ' the proper child

'see in which child it belongs to

If Obj.X < xmid Then
  If Obj.Y <= ymid Then
     NWchild.Items.Add Obj  'NW Child.
     Else
      SWchild.Items.Add Obj 'SW child
      End If

    Else

      If Obj.Y <= ymid Then
      NEchild.Items.Add Obj 'NE child
      Else
      SEchild.Items.Add Obj 'SE child
      End If

      End If
      'Remove the Item from this Node which is to be split
      Items.Remove 1

      Loop

      ' Recursive call to divide the children

      NWchild.DivideNode xmin, xmid, ymin, ymid
      NEchild.DivideNode xmid, xmax, ymin, ymid
      SWchild.DivideNode xmin, xmid, ymid, ymax
      SEchild.DivideNode xmid, xmax, ymid, ymax


      End Sub

making the divison start from the avergae of points coordinates it gives run time erorr Stack out of space ,on the other hand ,if i took xmin=(xmax+xmin)/2, ymin=(ymin+ymax)/2 the programm runs smoothly without errors ,but i need to take the avergae point to start splitting from it So please help me

Auto Scaling Of A Picture
Dear all,

Is there a posibillity loading a picture in vb60 with an auto scale so that small or big pictures will allways be showed correctly in a picturebox .

Which feature do we have to use in the picture box or an other object.

Nice regards,
Michelle.

Old Question: Scaling Picture
Yo...

because i have NO msdn or help on my pc for VB (6.0)...

i tried to find the answer to my problem here... but no luck so far... so...

i want to print an entire picture to a specific location...
with a specified size... so the following code should do the trick i thought...
but no... it only prints a small part of my picture...

i used:
Printer.PaintPicture Picture1.Image, 10, 20, 19, 19

one more thing... i printer.scalemode = vbmillimeters

k... hope you can help...

Scaling A Form Picture
Just wondering if the following code scales a picture on a form to the resolution of the screen? I have a form that maximizes itself to the screen dimensions and it contains a background picture. On the larger resolutions the background picture does not fill up the entire form whereas the smaller resolutions have no problem.

Code:
Me.Picture = optionForm.ImageList1.ListImages(2).Picture
Me.Picture.Width = Screen.Width
Me.Picture.Height = Screen.Height

Thanks

Picture Browser And Image Scaling
Hiya,

Im currently in the process of developing a picture browser, I want it
to run off a CD, basically I have 2 questions for the group.

The first is how do I get the program to only view the contents of the
CD, at the moment i have a drop down drive menu that allows me to
select the drive, i want to be able to put the CD in and then have i
view only the CD contents, Ive considered just entering in my code D:
but what happens if the drive isnt d: for instance, it wouldnt work.
Is there a way to sense the drive name and then use that in my code??

the second in a matter of scaling, at the moment my images expand to
there orignal size and i often only able to view the top right hand
corner, Is there a way to make all the images fit the picture box??
ive heard about the use of the image box but this doesnt tend to have
any boundarys and fills the entire window,

Ive inserted the code im using below

Cheers in advance

greg
__________________________________________________ ______________________
Private Sub Dir1_Change()
File1.Path = Dir1.Path
End Sub

Private Sub Drive1_Change()
Dir1.Path = Left(Drive1.Drive, 2)
End Sub

Private Sub File1_Click()
On Error Resume Next
Picture1.Picture = LoadPicture(File1.Path + "" + File1.FileName)
End Sub
__________________________________________________ ______________________

Picture Box Or Image Box Auto-scaling
hello,

I have a VB 6.0 program that is user-interactive and what it does is it allows the user to select a picture from a listbox and that picture will appear in the picturebox.
The problem I am having is now I have pictures that have a wide range of pixel resolution sizes and I want the program to automatically resize them so that they fit in the picture box (or image box if I have to use it) based on the size of the picture box.
Does anyone know of code that will do this?

Thanks

Faster Picture Transfer / Scaling? (Resolved)
Hello all,

I currently use paintpicture to transfer a picture and scale it in order to create a zoom effect in a print DLL I'm working on. I'm trying to find out if there are any functions faster than this one or anyway to speed this one up really?

I basically have to paint it twice as is.. once out of the picturebox into a temporaryr one adjusted to the right size and then back on the newly adjusted original picturebox. It just isn't fast enough to please me.

I've tried Bitblt and stretchblt but I must be doing something wrong with it because I just keep getting a black picturebox when I go to transfer it back. Not sure what I'm doing wrong there.

Picture / Image Control Scaling Problem!
Hi all,

I have an image control that I load a picture into with the stretch property set to true. However this makes the picture look unrecognisable. If I take the stetch property off it take over the screen. If I put it into a picture box it crops off parts of the picture so I am well and truely stuck! I was wondering first is there away to use the image control so it does not distort the picture or if the you can add scrollbars to a picture box.

Thank You All In Advance For Your Help

Regards

Jiggy!

How Make Image Picture = Picture Drawed In Picturebox
hi i need some help here friends

how can i make image.picture = drawed picturebox

this is my example

Code:
Option Explicit

Const DI_MASK = &H1
Const DI_IMAGE = &H2
Const DI_NORMAL = DI_MASK Or DI_IMAGE
Private Declare Function ExtractAssociatedIcon Lib "shell32.dll" Alias "ExtractAssociatedIconA" (ByVal hInst As Long, ByVal lpIconPath As String, lpiIcon As Long) As Long
Private Declare Function DrawIconEx Lib "user32.dll" (ByVal hdc As Long, ByVal xLeft As Long, ByVal yTop As Long, ByVal hIcon As Long, ByVal cxWidth As Long, ByVal cyWidth As Long, ByVal istepIfAniCur As Long, ByVal hbrFlickerFreeDraw As Long, ByVal diFlags As Long) As Long
Private Declare Function DestroyIcon Lib "user32.dll" (ByVal hIcon As Long) As Long

Private Sub Command1_Click()
Dim hIconHandle As Long
Dim sPath As String
sPath = (App.Path + "" + "1.txt")
hIconHandle = ExtractAssociatedIcon(Me.hWnd, sPath, 0)
p.Cls
If hIconHandle Then
Dim div As Long
p.ScaleMode = vbPixels
div = Screen.TwipsPerPixelX
ScaleMode = p
DrawIconEx p.hdc, 0, 0, hIconHandle, p.Width / div, p.Height / div, 0, 0, DI_NORMAL
DestroyIcon hIconHandle

End If
Exit Sub

Image1.Picture = p.Picture

End Sub

it did not work for image
Image1.Picture = p.Picture

thanks alot

Getting PictureBox.Picture Filename From A Picturebox
How do you get the filename associated to a pictureboxes .picture property. when i do picturebox.picture after i've set it's picture using the loadPicture fuction all i get returned is a string of numbers.

Picture In Picturebox Moves To Picture Box On Its Left
Let's say you have a form with X number of picture boxes. How I can get the picture in each picture box to "go to" the picture box on its left?

NOTE: there will always be a picture box with no picture in it

Any help would be appreciated.
ex:
[nothing] [pic] [pic]

(User clicks command button):
[pic] [pic] [nothing

ex using 4 picture boxes:
[pic] [nothing] [pic] [pic]

(User clicks command1):
[pic] [pic] [pic] [nothing] (the two last picture boxes moved over one to the left, so there would not be a picture box with nothing in it right in the middle of things

I hope this makes sense and someone can help me

Edited by - Marce22 on 7/28/2003 10:27:56 AM

Change The Picturebox Picture &"how To Put The Picture Inside The Exe File&"
Hi
I tried to change the picture box picture using this command
Pbox.Picture = LoadPicture(".mypic.jpg")
But the problem is that I need to include the jpg file in the same directoy, but I want only to work with the exe file without need to put extra files in the folder.

how can I insert this picture inside the exe file

Getting More Then 1 Picture In A Picturebox
Hi,
I have one big picturebox, and 5 smaller ones.
the big picturebox doesn't contain any picture yet, why the 5 others contain a different sort of road (not small tiles like usual, but 700 x 500)
the main thing is that if I click on one of the 5 small picture boxes the big picturebox schould contain the image from the clicked small picture box
but when you click a second time on a small picturebox, the big picturebox should contain the first clicked image, and next to that the new clicked image
and you should be able to click as much as you want on the small imageboxes

Thx in Advance
Greetz
Davy

Picture From PictureBox.. Where R U?
Me again. I have a code that is one and a half year old. It has some pictures in PictureBoxes that are printed. Now I want to change the .bmp that is printed, but I can´t find it anywhere... is there a way to find out where it is?
Can I get at least the path from where it was included? Tnks

If A Picturebox Has A Picture In It
Hello Everybody,

I want to make a if statement with a picturebox like:
if picturebox.picture = "" then msgbox "empty"
but the problem is, it gives a mismatch with the first part, I think it is picturebox.picture = "", cause I gessed the "", wat is the value that picturebox.picture gives if its empty???

Edited:

Sorry, I already found it, it gives a 0, so is there a way to delete this thread???

What Is Picturebox.Picture?
What is PictureBox.Picture?
Is it a packed DIB? or just Pixel data of an image...?
I'm facing few problems in turning a DIB Section into an object that can be assigned as Picturebox.Picture.

PictureBox.Picture
I have a Picture Box on my form, and im trying to figure out how to put in whatever image i want in that picturebox.

When the form loads, it will do something like this:

Picture1.Picture = "C:Picture1.jpg"

But i get a type mismatch error.

Im going to have an array of path's to pictures that i load from a file when the program starts, and when you click an item in a tree view, it will display the picture for that item. But i get type mismatch regardless of what i do.

Ive tried loading the pictures out of an imagelist, but that was a no go... Any ideas?

Picture In Picturebox..
I select a picture in a picture box from proprieties...but now i can't to delete it....
I know that is a stupid question...but i can't....how to do ?thanks...

How To Tell If Picture Is In Picturebox?
Whats the easiest way to determine if a picturebox contains a picture or if it is clear?

Thanks!

Which Picture Is In The Picturebox
Hello
I was trying to figure out which picture wasi n the icturebox. i look at the picture properties in the properties and it just says (Bitmap).

i double click on it and it just point me to the VB98 folder

Add Picture To Picturebox
Hi,

I want to do the following thing. There is a textbox and command button. Textbox is allows to have only A...Z, a...z, SPACE.

What I have is 26 images for A to Z and 1 for SPACE. When I type something and hit the command button I need to combine those images and show them to a picture box.

In reality I needed something more flexible which allows me to generate image as I type in textbox. So if I hit backspace then it will delete the last image from the combination.

Now there is no limit of how long the text will be so it's bit hard to achieve the flxible stuff so I am bound to have a Command button which will allow me to generate all the images together in a picture box. Now please don't ask why do I need this. I need it to generate a template.

I think I am making this clear enough to understand.

Cheers.

DC From Picture With Out PictureBox
I have seen this code before, but because of no search, i must post again. How do you load a picture into memory and recieve a DC for it. it think i know, but i'm not sure

Picture From Web In A Picturebox???
Can a picture form the internet be displayed in a picturebox if the URL,http://...pic.jpg, is known?

How Can I Know Picturebox Contains A Picture?
I am developing a paint application. In which i'm facing a problem. In this application some menus should be enabled only if picturebox conaints a picture so how can i know whether picturebox contains a picture or not?

Fit Picture In Picturebox
I have a picturebox with a fixed width and height of 2000 twips. The scalemode is set to pixel. Now I want to load an picture (bitmap), and it must fit the picturebox. I'm trying to do this by setting both scalewidth and scaleheight of the picturebox to either the height or width of the picture (whichever is the highest). however, the picture does not resize, it remains in it's original size.

This is the code I'm using. picSize is a hidden picturebox with autosize set to true, so I can get the width and height of the picture. When I run the code, both scalewidth and scaleheight of picBG (the picturebox that shows the picture) are set to 144, which is indeed the width of the bitmap I'm using.

Code:

picSize.Picture = LoadPicture(InputFile1)
picBG.Picture = LoadPicture(InputFile1)
If picSize.ScaleWidth > picSize.ScaleHeight Then
picBG.ScaleHeight = picSize.ScaleWidth
picBG.ScaleWidth = picSize.ScaleWidth
Else
picBG.ScaleWidth = picSize.ScaleHeight
picBG.ScaleHeight = picSize.ScaleHeight
End If

Anyone got any ideas on why this isn't working? Thanx

How To Strech Picture In Picturebox.
I'm making a program in which I have a picture in a picturebox. I want to stretch it (as we streatch an image box), according to the user input data. I, know that VB mainly offers this strech ability to Image Box, and I should use Image box for changing dimensions directly. But one problem in that, later in the program, I've to retrieve coordinates of black pixels from the picture in picturebox/imagebox according to its new dimensions. But if I take an image box, then I Can Not use GetPixel() for retrieving pixels, as an imageBox does not have hDc property. So, I'm intrested in using a PictureBox. Is there any way I can Achieve this? Thanks in advance.

Fitting Picture Into Picturebox
Hello everybody,

I know there's a way to fit a picturebox around a image, so the picturebox takes the size of the picture, but I want to do the opposite, make the picture have the sizes of the picturebox, like resising it to the picturebox size, is this possible??? I if yes, how???

Size Of A Picture In A Picturebox
Hi

I'm working on some kind of a picture-explorer. The propose is that the picture should have the size of the imagebox and keep the aspectrate. It doesn't matter to me if it's a picturebox or imagebox, as long as it works.

example:

the image/picturebox is 300 * 200 pixels
the jpg is 500 * 300 pixels

the image/picturebox must stay the same size (300 * 200), but the jpg must be changed to 300 * 180

Is there a proporty where you can change the size of the jpg in the imagebox (so not the size of imagebox itself, but the size of the jpg)?

I know you can strech an imagebox, but if I do that the aspectrate isn't good anymore.

Thanks in advance!

Title Picture On PictureBox ??
I need a way to title a picture on picturebox.
Picture is 1x40 pix, and picturebox is 800x40 pix.
So when picture is titled, it should create horizontal gradient.

Plz any code for fast horizontal titling?

Center The Picture In A Picturebox
Hi!

Is there a way to center the picture in a picturebox?

Hope you can help me!

Loading A Picture To Picturebox
I'm dling an image from the internet and saving it to a tmp file then trying to load it to a picturebox.

Code:
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I keep getting invalid picture can anyone tell me if that is a valid jpg picture?

Load A Picture Without Picturebox
I am making a level editor for a game. The user selects the bmp picture file from a list box. When the user moves the cursor and clicks on the form, I want the picture file to show at the position where they click. I can't use a picturebox because if the user clicks more than once it would have to create multiple pictureboxes. So I want a way to load a bitmap image onto the form at a specified position without the use of a picturebox. How can this be done?

Removing Picture From PictureBox
Well, I can load pictures like nothing else, but once a picture is loaded, how can you remove it? I've tried ... loadpicture (""), ... loadpicture Null and every other variation of blanks.

Picturebox Picture Question
Ok, here's my problem. I'm trying to take the drawn image in a picture box, and get it into an ImageList so it can be displayed in a listview. What I'm actually doing is making a color selector dialog, and I want the Listview to display shaded, colored blocks in the listview to represent the colors. To actually make those boxes, I change the background color of the PictureBox to the color I want and use the Line method of the PictureBox to shade the borders. But after that, I can't seem to get the resulting image from the PictureBox to the image list. If I use the Set statement like ImageList1.ListImages(1).Picture = Picrture1.Picture, it doesn't do anything. Any help would be appreciated.

Printing A PictureBox Picture
Hi, how I can print the picturebox picture ???

Thanks !!!!

Changing The Picture In A Picturebox
Hi again

I wonder how I can change the picture of a picture or picturebox control at runtime?
When I have the path (chosen by a common dialog) what should I do next?

Tia Legshot

Showing Picture In Picturebox
Hi all,I have a picture in a picturebox which is of bigger size then the form can handle..i.e more then 12180 twips....now i want to display whole picture in the picturebox which is in turn in a form......can i add scrollbars so that i can i can scroll the picture in picturebox..but i don't think that is possible.....is there a way around to display the picture.........I am using paintpicture method....i.e i want the graphics(more then one bitmap) to be painted at a particular position in the picturebox.

Scaling A Picture To Fit Picturebox

Hellocan i scale a picture to fit the picturebox?

Hello

can i scale a picture to fit the picturebox?