TextRenderer.DrawText To Bitmap With ClearType And Color.Transparent Background?
Sep 28, 2008
The following code does not appear to draw text properly to the bitmap. The text is rendered bold and anything but "clear". Can someone please help? I've searched all over the web for a solution and have not been able to locate one.The Code:
Drawing text on a picbox I notice if the picbox has a border style set then the TextRenderer.DrawText rectangle area needs to be adjusted slightly otherwise text may be drawn very near the picbox borders and the text doesn't look as clean, but I'm not sure what those offsets should be, I hard coded them in, see code under "' area to draw". btw, the code draws the first word of text in bold and then the other words as regular. 'One button, One picture box needed.
I want to use the added functionality (for word wrap etc) of the TextRenderer.DrawText method.... but this does not seem to work correctly on the Graphics object in the PrintPage event in the PrintDocument Object and does not take into consideration any transformations that have been applied. Does anyone have a replacement way or workaround for this?
I'm using some code to enable me to render rotated text with the TextRenderer.DrawText method. (By default, DrawText can only copy a straight forward x and y transform from a graphics object).
The code (C#) is from: connect.microsoft.com. See below for a VB conversion.The code takes a graphics object, creates a device context and copies the transform matrix from the graphics object. It works, but I'd like, also, to set the TextRenderingHint, so I tried:
<DllImport("gdiplus.dll", CharSet:=CharSet.Unicode, SetLastError:=True, ExactSpelling:=True)> _ Public Shared Function GdipSetTextRenderingHint(ByVal graphics As HandleRef, ByVal textRenderingHint As System.Drawing.Text.TextRenderingHint) As Integer End Function And then after the SetClip statement, I place: GdipSetTextRenderingHint(hDC, someHint) This gives me a memory access violation error, so I think I should be using something other than hDC as the argument.
I can get it to work by creating the device context from the original graphics object, and then creating another graphics object from the device context. I then set the hint on the new graphics object. This seems a bit convoluted so I was wondering if it was possible through interop.
How do I set the background color for a bitmap that I create from a graphics object?
Basically I create graphichs object from a bitmap object and draw on the graphics object. T hebackgroung color is black, the drawing color follow the pens used. How do is set the background Color?
For i = 255 To 1 Step -1 MyPanel.BackColor = Color.FromArgb(i,Color.Red) Next
This will make the background color fade to transparent.The problem is, I don't want only the background color to change.I want to change the visibility / opacity of all the controls inside that panel too..
in vb.net. Main form is transparent and I added big picture box to hold background image. Then I added transparent panel to this form but now i can see my desktop trough that form. I don't wanna c my desktop or other windows. How can I avoid this without changing panel background color? coz I want same image as my panel bg too.
i'm using VB 2010 and i'm trying to make a transparent images but without success .i draw 2 GIF pictures in Photoshop and save it as transparent.i put that GIF's in 2 pictureboxes on the form and the background of the pictures is really transparent, but when i try to put one picture in the top of the other one, the first picture cover the second one with the background color (and becuase it's transparent it's like the form color)
I have a form with transparent background (using png file).All controls placed over it becomes black at start then they change there color and comes to there original state on MouseHover. Its not the transparency keys problems since the transparency key color is different that controls back color. What can be the problem?
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i'm using vb2008 .Net3.5, but i would prefer an answer that would also work in vb2005
I have a bunch of PNG images in my project's resources. I need to find out whether the pixel at any X,Y is transparent or not. Testing the alpha of the color returned by GetPixel doesn't work, and I can't test it against the transparency key because Bitmap objects only have a MakeTransparent method, for some strange reason. Is there a way to tell?
I've been looking around on the internet for something to do this, but I have not found anything straightforward. Can anyone help? I just want to draw an image that pretty much "Highlights" an area in a bitmap. Anyone know how to do that?
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Alright inside of a combo box I have a list of colors and I want to change the background color of the combo box to the selected color...basically this... but im not sure what the problem is here anyone have some advice or is this not possible?
I want the background of my form to be the same color as the window frame color that the user selects, even if that changes. I selected System->WindowFrame as my background color, but it always remains a dark grey, regardless of what I have my window color set to. How else would I achieve what I want? I assumed I was doing it the correct way. Do I actually need code that gets the system window color and then apply it?
Right Click drop down menu using ContextMenuStrip. The background color of an unselected menu item is set with "BackColor".The color of the text of a selected menu item is set with "ForeColor".How to set the background color of a selected menu item? Default appears as a dark grey and I would like to change it.
I am using .NET 1.1, so I don't have the access to listitem object. I would like to change the text color or the background color of certain items in a listbox. can it do it in .NET 1.1?
Im developing a web browser and i got an idea of changing the background color of the form 1 so i made a form 2. created 1 combobox and 1 button. The idea was to change color of background and then when i start the program after closing it it will remember what color and start up same color as before? Here is what i did but it doesnt work:
I have a little piece of code which saves a certain Bitmap to a JPG image. The Bitmap is "composed like this" ( Ppiechart is a picturebox):[code]So After it is declared I start to do some drawing on this bitmap. And then I want to save it like this:[code]So this saves the image. But the problem is that the background of the image turns black when I open the file on my PC.The background of the Bitmap in the program itself is white. So does anybody have an idea what may cause this? Do I have to declare a color for the "mybitmap"?
I have a button with a backgroun image of color white. My button is sitting on the toolbar which has a bacground color of Blue. When the button is sitting on the toolbar, the button looks white, however I want it to look like blue as the the background color of toolbar is Blue.
I have a problem with 2 label, the background is not transparent, I set both BackColor = transparent, but nothing, they don't work. Both Label are located inside a panel, here is the picture so you can better understand:How can I do?