I recently wrote an inherited picturebox control. From within the control inside methodI I call Me.Invalidate to fire the control onpaint event. But onPaint does not fire.
View 2 RepliesI frequently use TextBoxes that expect date values. I do a tedious job every time to handle the Validating event. The Validation event ensures that the value is a valid date value according to the current thread's Calendar, and if so, formats the date to "dd-MM-yyyy".
I want a TextBox (e.g. DateTextBox) that automatically runs validation and formats its Text property. All I have to do is dropping it to the form.
I know I should use inheritance; but I do not know where to put the auto-validation code; and I do not know how to save the inherited class as a control in the ToolBox.
I've problem with clearing all the drawings I've created in my PictureBox. In fact I've created animation which stops after certain time and remains on the screen. The animation is created/painted with collection of about 25 TextBoxes - input of a user. Now I've added a button which clears all that info in TextBoxes and also should clear PictureBox -ictureBox.Refresh(). The problem is when I add new info in 25 TextBoxes nothing appears in PictureBox and I can't start an animation. Wondering why...
View 11 Repliesi am making a program with graphics and im using a picturebox for a button. The image inside picturebox is transparent .gif. The problem is that i don't know how to make picturebox transparent. I searched the internet but all exaples didn't work. Does someone know how to fix this problem?
View 4 Replieshere is my problem i am making a blockbusters game and have come across a problem where 2 picture boxes overlap each other which i dont want so i need to make a picture box or a button into a hexagon shape so they wont overlap
View 2 RepliesI managed to combine two .png images into one, and then display the result in a pictureBox image.However, the pictureBox seems to scale up my image! Makes it bigger!The pictureBox size is 96x128. The two images I have combined are 96x128. The pictureBox's SizeMode is set to "Normal"I have noticed that even though the pictureBox's image seems to be zoomed, it is cut to keep the 96x128 rect. But I don't want it to be zoomed...
View 6 RepliesI've been searching for days. I can't find anything that I think is going to work. I've probably read the answer and skipped it because I don't get it. I'm new. I've researched multithreading, sub routines and webbrowser. The webbrowser thing doesn't seem professional to me.
All I want is the animation to be smooth when it's displayed and to have it integrated into the app so it's not called from the local drive.The animated gif is in PictureBox3. Please point me in the right direction. I really don't want to use a static image.
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i'm working on Virtual K770i project - there is a picture of mobile, now i want to create clickable areas on "keypad" of mobile....I'm got idea about transparent label or something but transparency dont work on any object but Form1 - so how to make transparent clickable areas on picture box (see a picture)
View 2 RepliesI am currently creating an app and i want to be able to get the colour of a pixel, but in a picturebox.Example: I click anywhere in the picturebox and it will give me the color of the pixel I clicked.
View 3 RepliesI'm making my first 2D game, and I've created an object inherited from a picturebox, to use as a little man. I've tried to make it move using a timer, but I'm not satisfied with the result. Sometimes the speed seems to change for no reason.
View 5 RepliesHow do I rotate a bitmap image that has been placed in a picturebox? I need to make it appear upside down or rotated according to user input. I can't find anything in the properties to do this
View 2 RepliesI'm trying to update every millisecond the BackGroundImage of a PictureBox. But it don't works. I think that it comes from the figure that I update every millisecond in the PictureBox.[code]
View 1 RepliesProblem1: I have a picturebox on a form. I have also managed to draw several PNG files with transparency onto the picturebox (see below). However, If I move the form outside the border and move it back, the image is gone. My source so far:
Dim k1 As New Bitmap(My.Resources.image1)
Dim k2 As New Bitmap(My.Resources.image2)
Dim drawMe As Graphics = PictureBox1.CreateGraphics
Dim bgcolor As Color = Color.FromArgb(128, 128, 128)
drawMe.Clear(bgcolor)
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My project needs to print a large PictureBox which during runtime only part of it is shown (as it's too large, width=4000 pixels and height= 2000 pixels) and to see the rest of the picturebox, user needs to scroll through the vertical and horizontal bars. On top of the picturebox, there are many controls which are loaded and positioned by user on run-time. Those include lines, labels, another picturebox
with image and user-defined controls. Now, i need to write a print function which will print that picturebox to not too many pages in A4 size or A3 size. Not too many means less than 5 for both paper size.
1) How can i print the whole picturebox with all its contents and go to next printing page until the whole PictureBox is printed? I tried using the following code but
(i)The image of picturebox inside that picture box and user-defined control are not printed whereas others are printed. Why is that so? How can i print the picturebox including both the "un-printed"?
(ii) Even i can print out the picturebox, only the part where the picturebox is shown is printed. How can i print the whole picturebox including those parts which needs scrolling to reach?
Private Sub CmdPrint_Click()
Dim rv As Long
'Picture1 is the picturebox to be printed.
[code]....
The problem is that i am trying to resize pictures so they fit into a picturebox with good quality. I have found a code (se attached code) on the internet that resize the picture correctly but the quality is poor.
If i resize the picture in Adobe photoshop before i put it into the picturebox the quality is good so there is nothing wrong with the orginal picture or the picturebox. It's the resizing that is the problem.
Here is the code.
'Generate new image dimensions
Public Function GenerateImageDimensions(ByVal currW As Integer, ByVal currH As Integer, ByVal destW As Integer, ByVal destH As Integer) As Size
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If I try to draw a circle by using e.g.
Code:
e.Graphics.DrawEllipse(Pens.Red, 50.133, 100.321, 0.1, 0.1)
I will get an error message. I tried something like
Code:
Public ObjectPoint As PointF
Dim cpoint As New PointF()
cpoint.ObjectPoint = New PointF(startX, startY)
e.Graphics.DrawEllipse(Pens.Blue, cpoint.ObjectPoint, 0.4, 0.4)
but it didn't work for the location and the circle size. How to draw a circle(and rectangle) by using floating point numbers?
Ive been working on creating a side scroller game, and the back color of my pictureboxes needs to go. when transparent, it shows through the program and onto whatever is active in your Windows os(usually Visual studios).
I am trying to rip pixel color off of the background image picturebox( the level), and replace parts of the character picture box that show transparency with the level art. there may be poor logic in my code?
Heres my code:
Dim newImage As Bitmap = New Bitmap(PictureBox1.Image)
Dim backImage As Bitmap = New Bitmap(PictureBox2.Image)
Dim ximg As Bitmap = New Bitmap(PictureBox3.Image)
[code]....
not the best idea, but all i get is one color for all the level pixels placed in the new image, which is odd. any poor logic you see in this code that could allow the newImage.setPixel not to be 1 color? when i breakpoint, it is recieving different colors from the backimage.getpixel, but only putting one shade on for setpixel somehow. im not going for an accurate color read from the background yet, just wondering why im getting 1 pixel color for the whole picturebox background when being changed.
i wanted use some api graphic functions. but how can i use the hdc argumenter, if the picturebox don't have it?
View 11 RepliesHow to implement resize begin and end on controls the way a Form does. I had the idea that this can be accomplished using windows messages API (WM_ENTERSIZEMOVE and WM_EXITSIZEMOVE) but most of the samples I've seen so far are for windows. The reason for this is because I have a control that needs to re-render an image. The controll is inside a split container. The split container has only the Resize event. Is there any way this can be done?
View 4 RepliesI'm trying to build a custom ListBox control as inspired by the 'Audi Infotainment System' on high-end Audi vehicles. The only difference is i would like to have a 'boundary' where when scrolling up/down moves the actual list up or down. Basically, i would like my list to act like a normal ListBox except i would like to show say one or two items above and below normally only visible items.
View 3 RepliesI downloaded the custom made OvalShape control for Visual Studio 2005, and I really like it. One problem I have, is that I would like to have a label docked inside the Oval, as if it was a Panel or a GroupBox or pretty much any other control. With the other controls it does this automatically when I move the control inside them, but when I move the label inside the Oval, it won't "stick" to it. The OvalShape will move around and change size quite a lot in my app, so it would be nice ot to have to add a snippet of code after every movement of the OvalShape.
View 2 Repliesi have 3rd party custom tab control , that does not have RTL support also no source code so i sub classed it and mirrored it like below
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If a tab is highlighted and you hit the left/right arrow key, it goes to the previous/next tab. I want to remove this functionality. I only want the user to be able to change tabs with the mouse click.
View 5 RepliesI've got an app that I want to have an MDI with. It functions fine, but there needs to be a control panel off to the side of it to drive the child documents' creation. I have two problems with this.
First, if I add the control panel to the side of the form, it just overlays the MDI portion of the form and the children will spawn behind it. I can more or less manage the positions of these children, but the problem comes when I want to minimize the children, they minimize behind the control panel and I don't know how to move them. So I need to shrink the area they can move around in. I've read in places that you can use the splitter object, but that never seems to cooperate with me and only wants to move to the extreme left or right of the parent form. How can I reduce the area the children get to interact with? I've tried creating a MDI Panel, but VS has a fit with that.
Second, I've got a datagridview holding the data that will spawn the child forms. This is working well, but even though I've set the rows to be not resizeable, I can still make them grow or shrink during run-time (not programmatically). How do I stop this?
I have a visual basic .NET application that starts up a command prompt window using the following method:[code]The bat file then goes on to start up an application, which has a lot of output to the command prompt.I was wondering if there was any way to pipe the output of the bat file to a visual basic control. I am trying not to modify the bat file, if I can help it.
View 9 RepliesI am re-writing my old VB6 DXF viewer control in VB.NET Winforms. Attached is a picture of my testbed app. As we only need it to check parts that have been created to generate gcode for our laser it is limited to Points, Lines, Arcs, And Circles. It has Point, EndPoint, Centers, and Intersections snaps for all entities and combinations of entities. Measured output is displayed as Actual Point to Point plus Horizontal and vertical delta. Zoom Extents, Zoom Window, Pan and Mouse Wheel Zoom are fully functional. The last took a while to develop as I wanted the Zoom to be centered about the cursor position just as it is in Acad.
View 19 RepliesI'm wondering if anyone has been getting a 'System Exception Violation: Attempting to write to protected memory' exception.I have 3 calendar controls on a form and when selecting dates on the 3rd one, I am getting this error when I select a 2nd date.
View 6 RepliesI'm new to VB, now working with VB 2008 Express Edition. Was once very proficient with "procedural" languages of the 70's (eg. Fortran, COBOL, etc), but totally new to OOP and the "Visual" languages. Despite being a quick study, eloping a user interface to a USB-connected infrared remote control device. The UI's graphical element (a "virtual remote") will be a PHOTO of the IR remote control device supplied by my target-equipment's mfr, OVERLAYED with functional software control buttons in their respective positions. "Pressing" a button on the virtual remote will cause the USB device to emit the desired IR code sequence.
View 2 RepliesIs it possible to get the MouseWheel event from an Interoped ActiveX Control?
I have a DXF Viewer (with measure) control I wrote in VB6 that is quite frankly... Huge. It would take an inordinate amount of time to rewrite the whole thing and supporting tools in VB.NET. The MouseWheel event is used to Zoom in and Out. The control has a MouseWheel_Input() method to accept MouseWheel data from the host.
I added all the VB6 Mouse events, the Enabled Property, and The ActiveControl Property in VB6. Recompiled and registered the control on my VB.NET development machine. Added the control to my new VB.NET project and verified it has a focus method.
I'm using the MS Charting control, and can't find the way to create the translucent effect shown in their example piccy[url]...
Notice how the pie chart is translucent. How is this done with the chart control on a winform?