Questions tagged [system.drawing.graphics]
33 questions
1
vote
1 answer
System.Drawing.Graphics trim end of string?
While working on a text render algorithm, I stumbled across a strange behavior of the Graphics.MeasureString() method.
It seems like it internally trims the end of a string.
g.MeasureString("d", font).Width //is 13.289278
g.MeasureString("d ",…
Florian Gl
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0
votes
1 answer
DPI of screenshot taken using Graphics changes to 3700 after use in TesseractOCR
I am using c# winforms and I am taking a screenshot using Graphics.copyfromscreen
private Bitmap CaptureImage()
{
// Create a bitmap with the specified dimensions
Bitmap capturedImage = new Bitmap(captureArea.Width,…
LaysYogurt
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- 1
0
votes
1 answer
On vb.net error on system.drawing.fontFamily.GetName 'Parameter is not valid'
My application fails while trying to paint a dataGridView object.
There are a dataTable object that collect the information from a MySQL database and that object inserts to a dataGridView object with dgvTable.source = dataTable method
That…
Basajaun
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0
votes
1 answer
Create 5 Point Star with e.graphics but set the x and y start position to 110,110 in VB.NET
I need to create a small 5 point star that is 15 points wide by 15 points high, where the x starting position is 110 and the y starting position is 110 on my print document.
the code I found online so far creates a star, but in the top left corner…
Andy Andromeda
- 55
- 6
0
votes
1 answer
Drawing spotted circle
I am trying to draw a spotted circle like google pay spot code using System.Drawing.Graphics here is example on google pay spot code.
I tried with this C# code:
private void DrawSpot(Graphics graphics)
{
var lineWidth = ImageSize *…
Henka Programmer
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0
votes
1 answer
Font Kerning > Change Inter character spacing in DrawString System.Drawing
How to increase/decrease inter-character spacing while drawing the string with System.Drawing in C#? In other words, I want to implement Font Kerning while printing labels.
I have tried winapi SetTextCharacterExtra but It is not working at all. One…
Abhishek Prajapati
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votes
1 answer
VSTO Outlook Plugin: MeasureString calculates wrong width
I want to display a button with an internationalized label. In English the label perfectly fits the width of the button. In german it does not fit. To calculate dynamically the width I use
[...]
using (Graphics cg = this.CreateGraphics())
…
HHeckner
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0
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1 answer
How can I rotate a bitmap, keeping its scale
I'm trying to rotate a bitmap where I retain all the pixels, and the destination bitmap size is set so that I get it at the same scale. In other words, every pixel in the source is a distinct pixel in the output, and the output bitmap size adjusts…
David Thielen
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Graphics.CopyFromScreen() is capturing blank for particular application
I am developing a .NET winforms application which has to capture a snapshot.
For this I have used System.Drawing.Graphics.CopyFromScreen method which works fine but when I tries to capture screenshot of particular application (Oracle EBS) then it…
Vikash Atri
- 96
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Execution order of System.Drawing.Graphics based List
It's my first time posting here so apologies in advance if I get the code formatting wrong. I'm coding a simple GDI+ renderer class in C#. Here's a simplified version of my code:
public interface IRenderer
{
void Begin();
void…
0
votes
0 answers
Setting 'System.Drawing.Graphics.Transform' in Form.OnPaint yields ArgumentException
System.ArgumentException: 'Parameter is not valid.'
This is the first time I have tried to toy with a Matrix and transformations.
Anywho...
protected override void OnPaint(PaintEventArgs e)
{
Graphics g = e.Graphics;
…
Furry Chemistry
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- 1
0
votes
2 answers
Painting with System.Drawing.Graphics on form load
I'm trying to draw a rectangle using System.Drawing.Graphics in C# Windows Forms, but I cannot seem to get it to work without using a button click event.
Searching online uncovered that I must use either the Paint or the Shown event within the form…
Ivan Spajić
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0
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multi threading for plotting two different graphics in C#
If I create two different threads for each plot so is it possible to combine both the plots and display in a one picture box?
I have tried it using single thread but I couldn't get the desired result.
here is the code which I have tried:
The output…
SN25
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0
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0 answers
How to print human readable documents in C#?
I'm working on a few tools that require printed output for the user, and I have had some good results with the System.Drawing and System.Graphics classes to layout the document to be printed, but I'm needing more page layout features.
The code I've…
Chris Rutherford
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votes
2 answers
C# save System.Drawing.Graphics to .png
I tried with the graphics.Save();
Graphics newImage = Graphics.FromImage(bmp2);
newImage.DrawImage(bmp, 87, 37, 0, 0);
newImage.Save();
but when i try to set the file name like in the Image.Save(@"HereGoesName.PNG"); method i get an error saying…
Chona Pardo
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