I used some code i found that extends the aero glass border across the entire form... looks great... however when i add a control (like a datagridview) it doesnt look right at all because of the transparency of the form...
View 5 RepliesI am an intern at a company doing Drawing Tools for their program. My supervisor is currently having me just make a user control that draws a line and adds transparency over a form. (I started this internship very early, so my knowledge is very limited compared to what it should be for a standard intern)
This is what I have so far:
Protected Overrides Sub OnPaint(ByVal e As System.Windows.Forms.PaintEventArgs)
If MyBG Is Nothing Then
MyBG = New Bitmap(Me.Width, Me.Height)
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Here's my situation: I have a control with motion graphics (for the sake of simplicity, a 'video player' control) in my project. Think of a PictureBox with constantly-changing images. In front of this will sit a second control (such as a second PictureBox of the same dimensions). The topmost PictureBox will be drawn to in its Paint event.
I need to draw very few elements, and the bottom control is updated much more frequently than I need for this drawing. So these elements are drawn to the topmost control. Think of a news broadcast, where they have live video in the background, with a news channel logo, news ticker, and sometimes gradient visible in front.
I'm trying to create that 'foreground' control, and the closest I believe I have gotten so far is the following:
Imports System.Drawing
Imports System.Drawing.Imaging
Imports System.Drawing.Drawing2D
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The 'Opacity' property in the code above is a sort of "scaling factor." The image drawn to the top control may, in different parts of the image, have any alpha value from full transparent to a full 255. This 'Opacity' property is applied to the entire image being drawn, scaling the alpha values of each pixel.
See the following pictures for description:
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I've making a program that must crop 20 squares out of a larger image that is in a picturebox. Now I've created a Draggable rectangle control and set it's Background to transparent. This is working (kindof).
Now I have set my control to doublebuffered = true and it Removes tha annoying flicker.My problem is that doublebuffering creates a new problem. My control's parent is a picturebox with a large picture inside.When I move my control over the picture to select the area to be cropped it updates slowly I.E The control Is in a new area but it still displays the old area and then updates which is annoying.If you want to see for yourself create a new project with a picturebox with a Image inside with my Control as a child of the picturebox.
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I have thought of possible solutions but they might well be much slower.#1 Copy the part of the picturebox that is under the control and paste it on my control.#2 Somehow eliminate the backcolor property thus eliminating the need to paint something over the control and only paint needed parts .
This is my first attemt to create a new custom controll that I'll be spawning in runtime. I have written rendering onto a control before but this is the first time I made a real user control.
The problem at the moment is that when I set the backcolor of my custom control to transparent it doesn't take over the backcolor of the main form. Instead it just renders it solid black. Any idea why this might be?(I render everything in the onpaint method if you wonder)
I tried setting the ControlStyles.SupportsTransparentBackColor but that doesnt work for forms only for control derived types.
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Is it possible to use WPF in WinForms, to implement the idea used in this question. I am trying to create a semi-transparent panel.
View 3 RepliesIs it possible to have transparency on a form but not on a button on the form?I know transparency can be controlled for the form in properties (VB 2005), but how can we isolate the button from being affected?
View 2 RepliesI want to try an simulate a fake lighting system in Visual Basic 2010 by using 2 images.One is Form1's background, and the other is Picturebox2's image. Picturebox2's image is a black background with a transparent circle in the middle.The only problem is, when transparent, it shows the background of the form, and looks right through the background image.How could I get around this so that the transparent part of the image is Form1's background image, and not the backcolor?
View 4 RepliesI am working on an application which has transparent forms. By using transparency, I am smoothing the edges of the forms. I have got a bitmap which I set as background image of the form. I use red as form's transparency key. Although transparency works fine when my computers display is set to 24 bit color, when I change the setting to 32 bits, transparency doesn't work. In this case, users who have 32 bit color dept setting on their systems will not be able to use my application. When I searched the web, I found some solutions such as using bitmap.maketransparent command, or using magenta color for transparency key or using 32 bit bmp files etc. However none of them worked for me. Some forums suggest that this is a bug and there is no way to solve this problem. But if so, why some applications such as Winamp can display transparent forms although my color dept is set to 32 bit! I am sure there is a solution. I am working on VB.NET 2008 and my OS is Windows Xp Service Pack 2. Please help me about this subject.
View 10 Replies[URL]
i hav a transparent png. i need the form also to be transparent so what i did was set the transparency key to the form back colour see what happens (it is in the pic)
I have just converted my first VB6 application to a VB Express version. I have a fair sized library that I would like to convert but I am having a severe problem with a very simple little game program that I selected for a trial conversion. The problem is this. I do a lot of graphic / art work in my GUI and heavily use labels with transparent backgrounds. When I converted to VB Exp 2005 the labels are no longer transparent but rather carry the background color attribute of the Form. Is this how MS implemented transparency in VB 2005? If so the product is of no use to me whatsoever. I checked the Labels attributes and they are set to transparent. But they are not being displayed as such.
View 3 RepliesHow can i set the transparency Key in MDI parent Form?
View 1 RepliesI can't get the transparency key to work with the mdi child, I really need it to work as well, but I just can get it to work properly.
View 2 RepliesI'm trying to write some toast-style popup notifications (similar to Growl) which should appear next to the system tray and stack as appropriate.I can handle the instantiation/location/etc... but I want to add a capability for non-rectangular toasts. I'd also like to have Alpha transparency so a semi-transparent background PNG on the toast form would blend with the desktop or windows behind it.
So... To get the obvious out of the way: Form.TransparencyKey is not sufficient for my needs as it's an all-or nothing transparency effect I want to get 50/50 foreground/background in some places, 0/100 in others, 100/0 in yet others etc.My initial approach is to override the OnBackgroundPaint() method, comment out the call to MyBase.OnBackgroundPaint and use the graphics object in the eventargs to draw exactly what I want to a form.This seems to work to start with - at the moment, I'm just drawing some rectangle for testing purposes so a PNG may present new difficulties but I haven't got there yet.
What I haven't been able to accomplish is updating the graphic - The first time the form is rendered, it shows perfectly as I'd expect (no border, just some rectangles floating on a desktop). If I move the windows behind the transparent window, the transparent window doesn't update/re-paintI believe that I need to be calling Me.Invalidate() to force a re-draw but am unsure when I should make the call - How do I know a window behind me has changed its' contents?
Edit: I tried putting a Me.Invalidate() inside a timer just to test how the redraw happens - it seems that it does trigger a re-draw but the re-draw opccurs OVER the existing form background - ie an area that was originally 50% opaque is now 75% opaque (50% + 50% of what was there before)So, after a couple of Invalidate()s, my form is showing as a black box - I need to clear the background of the form before re-drawing but Graphics.Clear(Color) seems to simply do a fill with the specified color - and obviously for the purposes of this question, Colors.Transparent doesn't really mean transparent - It seems to be a trick used when rendering the window to "show contents of control beneath this" which just doesn't work when we're dealing with the form itself?
Imports System.Drawing
Public Class TransparentForm
Private Timer As Timers.Timer
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I have a custom shaped form with a transparency key of black. With the opacity set to 100%, I do not see the garbage around my custom shaped form As soon as I change the opacity, I see a transparent square(my borderless form) around my form.
How do I make it where my form retains its custom shape, and can have an opacity of less than 100%?
If you want something you've never had, you need to do something you've never done.
I've tried adding a splash screen ]...to one of my applications and after exploring a while I somehow managed to get it working what bugs me now is that my splash screen is in fact a image inside a picture box and the form always shows the control color behind so what I tried is adding the form color to the transparency key this worked, somehow now, I use a png image that has some transparent effect also what I've noticed is that where I would want to show the transparent effect from the image the transparent color that is set in the forum shows below is the image to get my point of view:
I'm wondering if I can remove that "pink" color (set by me in the forum) from the image .I want to get a effect like the one Adobe products have for example
I have a datagridview control on a form that I want to make readonly, before showing the form. I can disable it before showing the form with the [code]...
View 2 RepliesI am trying to bind a DataGridView control on my windows form. However, it doesn't appear to be working. Am I missing a step somewhere? I cannot get the objects in my collection to display in the DatagridView.
Here is a sample of my code. I have not included the Person class.
'CREATE A COLLECTION OBJECT.
Dim p As New List(Of Person)()
'ADD PEOPLE TO COLLECTION.
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I am developing a software using microsoft visual studio basic 2010. I used a datagridview control to display a list of data from product table. What I want to do (actually I am not sure how to do it, or is there a way to do it), when I choose one of the value in one of the column inside the table, I want it to open a form that contain data(details) based on that value.
How to do it? How to call the value that I pressed, so it can be used to open a new form containing the details of that value
Example of the data: (the "system" column) SYSTEM
topaz
nex1300
Nec
If I pressed "topaz" system, it will prompt me to a new form containing the details of that "topaz" system.
i want to select the row on datagridview and send it cell's value into textbox / label control on the same form..but it seems not work, but when i use
Private Sub DGV_CellClick(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles DGV.CellClick
it can but i have to choose by click on each cell on it datagridview..what i want is i only have to click on it[datagridview] row but i get all value on it's column.. so i can parse/send it value into textbox.it only can be clicked with single row i knew it by DataGridView1.SelectionMode = DataGridViewSelectionMode.FullRowSelect
I am sorry to keep bothering you about this damn DataGridView control ... As you might have noticed I am having a hard time with the DataGridView control ... My latest problem has to do with updating the data base file (Access) through a DataGridView control .
Up to now I have managed to successfully edit an entry in the DataGridView control and moreover to successfully update the data base file itself .
The above form and its code work fine . The problem starts when I am trying to run the code of the Update button from another form .
You see , I have another form , through which I change the contents of some of the cells in the DataGridView control (back in Form1) . What I want next is to simply update the data base file itself , just like I was doing with the button in the first form , after I manually changed the cell in the DataGridView control .Thus , on the second form I have a button with this code :
Form1.Button1_Click(Nothing, Nothing) (of course the Click event is declared public)I have also tried :
Form1.Button1.PerformClick()
but still nothing ...Although Form2 successfully changes the cells back in Form1 , the data base file itself does not get updated ...If I manually press the Update button in Form1 I once again successfully update the data base file , but I want to do the whole thing by calling the Update button from Form2 .
I have a few classes, one is a form, the other is the source of the datagridview. I want to be able to sort the columns of the datagridview by clicking on the header. Here are the classes that I am dealing with:
Imports DiscoveryByte.AddTools.Misc_Tools
Public Class ViewDiscoveryFlashCards
Private DBBindingSource As New BindingSource
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I want to create customized control on DataGridView Control in Vb.Net. But I am facing too many problem. How to create dynamic rows and columns and columns like
DataGridView Combo Column (extended combobox)
DataGridView Memo Column
DataGridView DateTimePicker Column
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Im Using VB 2008. I have MsgBox() statements in all Mouse & Form Click events to TEST & NOTHING FIRES during Form Load when I click on Form or Button Controls !!! The Form Load event contains code for Displaying the Label.Text control many times with changes in the Text to simmulate annimation.
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I have two datagridview's both are databound. First one shows items for sale and the second stores all the items that were sold. I am trying too transfer selected rows from one to the other but no matter what I keep getting told "Rows cannot be programmatically added to the DataGridView's rows collection when the control is data-bound."
View 2 RepliesI have a DataGridView control (DataGridView6) that displays a list of managers. I want to generate a new DataGridView everytime I add a new manager to the list and put it in a specific place on my form.
EDIT: say if i have a main datagridview, and i want to add another datagridview of the same size directly below it, how would i achieve this using the event handler method described in your answer below? im not sure if this is the most efficient way of displaying new members in the program though...
I have created simple windows form control with some events.
This form has button which opens Form with some settings.
Now, I need to raise the events inside the control when I click some buttons within the settings form ..
The following code works perfectly to allow moving a control on a form at run-time. However, when AutoScroll is set to True on Form1, and you drag Button1 past the right and/or bottom bounds of the form, it goes haywire. I really need someway to smoothing control the autoscroll so that as you scroll the control off the form, the scrollbars smoothly appear.
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I am still messing around with Cntrl/Copy and Paste from a menustrip. Paste is working fine. The copy is working to a certain extent. It will copy the complete text field from one control to another. how do I determine what is the selected text only. My code below:
Private Sub CopyToolStripMenuItem_Click(ByVal sender As Object, ByVal e As EventArgs) Handles CopyToolStripMenuItem.Click
Dim activeChild As Form = Me.ActiveMdiChild ' Determine the active child form.
Dim activeControl As Control = activeChild.ActiveControl
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The code is listed below which hopefully illustrates what I'm trying to do:[code]....
View 12 Replies