Copy A Bitmap To A Form?
Oct 12, 2010
I know how to copy a bitmap to a picturebox.image but how do I copy the bitmap to the form?
Example:
I want to create a form 1600x1200 and put a 1600x1200 image on the form to cover the entire surface.
Then I want to put several pictureboxes 256x40 (Tool Bars) at different locations on the form.
If pictureboxA is at x32, y32 on the form, I want to copy from the form at x32, y32 256x40 to the picturebox.image then draw
the buttons on the pictureboxA.
I know how to load a .jpg or .bmp to the form from a file. This won't work for my purpose.
If there is no fix for this then the only thing I could do would be to create the bitmap then save it to a file, then reload the file to the form. I want to avoid this... It takes up time :(
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Oct 4, 2010
Using a blank form I draw simple colored shapes to the form(x800 - y600 @ x0 - y0).
I'm using a picturebox(x800 - y600 @ x0 - y0), how do I copy whats on the form to the picturebox?
I want a mirror image copy.
Also, how do I copy from picturebox to form?
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Mar 7, 2012
Edit: Fixed, I created a compatibleDC for the graphics object, and a handle for the bitmap (using b.gethbitmap), then used the SelectObject function inside GDI to select those two, and used the compatibleDC instead of hDc in the BitBlt function I've been trying to draw a bitmap to the screen (device 0), however I have encountered a problem copying the graphics using BitBlt.
Initially, I was drawing directly to the desktop using SetPixel (gdi32), but it was slow, so now I am setting the pixels of a bitmap object and then creating graphics from that object, and copying the hdc of the graphics to the screen.My guess is that I am adding the HDC of the graphics object to an intptr, which essentially gives me the HDC of the container of the graphics object, which is not what I need. However even so, I have not found any information on how I could copy a bitmap to a device other than using BitBlt.
This is my current code (Windows forms app, textbox, button) The textbox is the device to copy to, and the button starts it. For testing purposes, set the textbox text to 0, and press the button. You should see a black box (50x50px) in the top left corner of your screen. The colour should be blue if it is working correctly:
Public Class Form1
Declare Function GetDC Lib "user32.dll" (ByVal hwnd As Int32) As Int32
Declare Function ReleaseDC Lib "user32.dll" (ByVal hwnd As Int32, ByVal hdc As Int32) As Int32
[code]....
The way it works is it calls the function setpx, given a location and color from within a loop iterating through all of the pixels in a box (50x50 in my code). The setpx function will then call the setpixel fuction on a bitmap b. This part is working fine.Next, it will define a graphics object g from the bitmap, and I use BitBlt to copy g's hdc (g.gethdc) to the screen. This is not working correctly?
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Dec 13, 2010
I am trying to take a snapshot, or a copy of a control, for a bitmap. I'm wanting to do this to a listbox, but part of the listbox may be hidden.On the mouse_down event I need to get the snapshot of the whole listbox (even though parts may be hidden behind other controls, I need the whole listbox) and draw it to the screen in the same location as the original listbox (but the hidden parts still stay hidden behind the other controls on the bitmap).
On the mouse_move event I need to move the snapshot up/down based on mouse movement. This also moves the listbox up/down and this code is done. I will just move the snapshot of the listbox the same way as the original listbox.On the mouse_up event, I will dispose the bitmap and display the original listbox again.
I am doing this because moving a listbox up/down is really messy. It's a custom drawn listbox and looks horrible moving, so I figured if I could snapshot it, move the bitmap while visible, and listbox behind the scenes, it will flow smoothly and no one would notice I am scrolling a bitmap instead.
Double buffering the form and listbox didn't help . I've done some graphics.drawstring before, but not much on other graphics.
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Jul 3, 2011
I'm using Bitmap to show picture box like slideshow using Timer. For each timer interval, I've to go for new instance of Bitmap, there System memory increases to 1MB, How to resolve this, 'BG is picture box
Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tic Dim img As Bitmap
img = New Bitmap(System.Drawing.Bitmap.FromFile(FileIO.FileSystem.GetFiles
[CODE]...
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Dec 15, 2010
I'm trying to use a ToolTip directly to a Bitmap Object (System.Drawing.Bitmap), aparently I can't do this because Bitmap isnt a Windows Control.
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Sep 17, 2011
how can i create a monochrome bitmap from a semi transparent bitmap in vb.net? the bmp is for a transparency mask image for an icon i'm trying to create with the CreateIconIndirect API function.
i'm using vb2008 .Net3.5, but i would prefer an answer that would also work in vb2005
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Dec 27, 2004
Is it possible to convert a form to bitmap. Actually i have a form on which different things( labels, grapg etc) are drawn at run time. So what i want is that when everything is drawn it is converted to a bitmap. i tried myBmp = me.creategraphics but it didnt work
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Apr 13, 2010
I designed a complicated graphic that draws on a Visual Basic screen. But how can I transfer the image to a bitmap or some other format that I can post on the Internet? I've tried the XAML editor in Microsoft Expression Web but people don't like downloading Silverlight, at least that's what they tell me.
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May 13, 2009
I want to display a bitmap on my form, and then remove it at times, and put it back again.
I have the Bitmap in my resources folder.in my form properties, it is selected as background image.
somewhere in my code I set the background image to = nothing (that makes it disappear) but every time I try to bring it back, I get file not found.I got it to display when I hard-coded the entire path and filename.[code..]
Obviously, when I publish and distribute to clients, the file won't be there.[code...]
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Feb 5, 2011
I'm trying to create a DLL with some useful methods and subs for my use. But when I tried declaring an object for Form or using the keyword Screen, Bitmap, etc.. gives an error saying that "The type 'Screen' is not defined" and like that..
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May 22, 2012
it is possible to write the graphics content of a form (whole or part) into a bitmap.
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May 26, 2011
Here is a short program to demonstrate my question. I just want to extraxct a rectangle bitmap from a big bitmap.Code as follows:
Private
Sub Button3_Click(ByVal sender
As System.Object,[code]....
Execution stops when hitting the Dim cloneBitmap statement, which should have created a bitmap out of the rectangle cut out.The message is:
"MissingMemeberException was unhandled.
No default member was found for type 'bitmap"
I just don't get it. Seems that the method Clone(Rectangle, PixelFormat was not found.
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Feb 10, 2010
I have a grass image located here in my directory. I want to just create a Bitmap, but I am getting an error. (Parameter is not valid.) Immediate Window: A first chance exception of type 'System.ArgumentException' occurred in System.Drawing.dll
[URL]
private void Form1_Load(object sender, EventArgs e)
{
Bitmap bmp = new Bitmap("grass.jpg");
}
bertino
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Mar 28, 2009
I'm making a program like PostIt! Well, i want to make a model form, and copy that form as many times i want.I think it works with something like frmPostit1 = frmModel.clone()
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Sep 8, 2010
I have three form First Form is MDi form and Second Form Is Child Form and third Form Is small form.The small form conatin DataGridView searcher for name and I want whe I press the Event Mous Click he copy value from cell"column" of DataGridView to Child Form..[code]
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Oct 1, 2011
The code below reads an Icon from an .ico file, converts the Icon read to a Bitmap and saves the bitmap using:
Bitmap.Save(PathA)
Then does:
PanelShowWrittenIconA.BackgroundImage = New Bitmap(PathA)
[code].....
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Mar 1, 2010
I want to write an app where when I press a button, it creates a new form based off of a pre made one.
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Jun 18, 2012
I am new to software development and need to develop a VB software for one of my projects. **I want to know how can I copy a form created in a project to another.I have copied the form from the old project and tried to paste it in to the new project. But I was failed. I have read one of the answer which have given regarding to another one's question. But unfortunately I am not in the standard to acquire the way I could do it.
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Feb 7, 2009
I have a very busy form with 120 textboxes on it. They are all named box1, box2, to box120. this form is a template for 10 other forms. I dont want to create 10 new forms and put all these textboxes on it, so is it possilbe to create a new form; form2, form3, form4 etc...and somehow copy all the content from one form to the other and retain the textbox names. I tried to cut and paste and got some strange errors, then i tried in the solution explorer to copy and past there. I got some odd error about Private components...which i did not understand. As you can imagine with all these forms and 120 textboxes on each to create them is a real effort. Is there not a simpler way?
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Dec 25, 2011
how do I sent text from a textbox on my form 2 to a textbox on form 1
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Jun 23, 2012
I am relatively new to Visual Basic; in the sense that I have had it for a while, but haven't used it enough to actual get good and confident with it.
I am trying to create a program for the 3D Space Simulator "Celestia". You can create stars through Notepad on it, but I wanted to see if I can create a 'Star builder'.[code]...
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Jul 9, 2010
what is the Best way to Copy the Text from Form to Other ?
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Apr 26, 2011
i am trying to get my app to copy itself on form load i have used the following code
[Code]...
when i run the program i get the error message that app is not declared
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Mar 21, 2010
First i need to copy a line of text which i can already get selected this ain't in the windows.form but it's in another program (in my situation it is Inernet Explorer, but also going to need it with others.) so i guess i'll have to make my program press Cntrl+C at the same moment? then it's going to be copyed right? so it'll be on it's "clipboard" then after that i need to get Label3.text = the clipboards text.
i don't have any codes yet, ain't asking you to do my homework but if anyone knows an solution, or can get me some hint. i tried searching all over the web but can't manage to get the buttons pressed at the same moment.
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Jan 8, 2009
Is there any method or a way to copy a form object to a variable? Let me explain this - We have a method called "Copy" for the Dataset class & you all must be knowing that there is a difference between the below two lines of code: DsTemp = Ds DsTemp = Ds.Copy()
In the first line of code, any changes made to Ds will reflect in DsTemp. However, in the second line of code, any changes made to Ds will not reflect in DsTemp because we are only "copying" the contents & schema of Ds. Likewise is there a method or a work around to "copy" a Form object?
[Code]...
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Jun 21, 2010
I have a problem trying to copy 3 fields on a form to a database. The reason I cannot seem to do it is that the last field asks how many copies you want to save in a combo box. So lets say the user selects 3 I need to be able to copy three sets of the same data to the database.
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Jan 24, 2012
How can I copy form and make identical form
say want to copy the style of one form & coding and make identicel form 2
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Mar 26, 2012
I have two programs.One is a program that is used at the end of the day to submit cash, check and credit card values to the home office.This is used in 10 retail locations. Each store also fills out a deposit slip manually and faxes a copy of the clip to the home office. I have another program I wrote for my church that allows us to enter checks and cash collected during the offering each Sunday and print a deposit slip.
I want to combine these two programs.I tried by creating a new project and adding these two project to it.That works except as I make changes to the screens and codes it modifies the original programs.I don't want this.How can I combine these two projects (code and screens) into one and save it with a different name? I am using Visual Basic Express.
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Nov 22, 2009
What is the best way to copy a form? I have one form which has a lot of work and would now like to use this as a template for another form.
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