I ran into a weird issue with custom drawing the listview control. I drew the grid lines in response to CDDS_POSTPAINT notification. All working okay so far. However, when scrolling vertically, the lines will be messed up and will not be drawn at...

C++

Win32

API

drawing

WinAPI

ListView

Listview custom drawing grid lines. Scrolling problem.

9 Sep 2023 by Richard MacCutchan

See About Custom Draw - Win32 apps | Microsoft Learn[^] for custom drawing in Report mode.

Interfacing HY28A LCD Module with ILI9320 Controller and XPT2046 Resistive Touch Panel to PIC Microcontroller

7 May 2023 by Minh Danh Nguyen (ToughDev)

This is a cheap 320×240 2.8″ TFT LCD module that uses the ILI9320 controller for the display and the XPT2046.

How draw hexagon end of line with mouse move event

1 Feb 2023 by OriginalGriff

You can draw a line: I know that because your other questions indicate it. You can draw a hexagon: you have said so. So ... draw a line. Use one of the end points as the center of the hexagon and offset the other six points you need from that:...

VB15

drawing

How draw hexagon end of line with mouse move event

31 Jan 2023 by moshaveran

I want to draw a line that has a hexagon at the end. with mouse move event. I can draw a circle or a square, but not a hexagon! What I have tried: I want draw a line that have a hexagon at the end

VB15

drawing

My swing drawing doesn't work

13 Dec 2022 by pitwi

Hi! A view weeks ago I changed to Java and so far everything's fine - except drawing (with Swing). The code below works - except the part that draws a graphics. What's wrong? package Test2GUI; import java.time.format.*; import...

Java

Swing

drawing

Drawing problem with swing

7 Dec 2022 by pitwi

Hi! A view weeks ago I changed from Visual Studio C# to Java and now I've tried my first project with Swing and WindowBuilder. So far so good and everything works fine - except drawing that line. There's no error message but also no line. Neither...

Java

Swing

drawing

Drawing problem with swing

7 Dec 2022 by Richard MacCutchan

See Line2D Java Example - Computer Notes[^]

Java

Swing

drawing

How to add mark on scrollbar in position of scrollbar in VB .NET

7 Feb 2022 by Member 12617947

I have a rich text box that get scroll position with the code below Private Declare Auto Function RtfScroll _ Lib "user32.dll" Alias "SendMessage" ( _ ByVal hWnd As IntPtr, _ ByVal Msg As Integer,...

drawing

Scrollbar

How to add mark on scrollbar in position of scrollbar in VB .NET

7 Feb 2022 by CHill60

There are some articles here on CP that can guide you into building your own Custom Control WinForms Custom Container Control[^] Writing Your Custom Control: Step by Step[^] There is also this article...

drawing

Scrollbar

GFX In Depth: Part 2 - E-Paper Displays

18 Jun 2021 by honey the codewitch

Use GFX effectively with e-paper/e-ink displays

GFX In Depth: Part 1 - Drawing Fundamentals

3 Jun 2021 by honey the codewitch

Explore techniques for drawing using GFX

GFX Sidebar: Inside the ILI9341 Display Driver on the ESP-IDF

6 May 2021 by honey the codewitch

Explore the inner workings of a highly capable IoT display driver for the ESP32

GFX Part 4: The ILI9341 Display Driver and JPEG Support

4 May 2021 by honey the codewitch

Use an ILI9341 display efficiently from an ESP32 without the Arduino framework. Load JPEGs.

GFX Part 3: Drawing Primitives

25 Apr 2021 by honey the codewitch

Explore the basic drawing functionality provided by the GFX IoT library

Intersect multiple circels

20 Apr 2021 by JR212

Hi, How Can I see if 2 or more circels intersect or touching each other? What I have tried: When using rectangle and the upper left corner touch the lower right corner the circles aren't really touching. but intersect return true

drawing

Intersect multiple circels

20 Apr 2021 by OriginalGriff

Don't even check the rectangle: get the value of the distance between circle centres and compare that to the sum of the diameters. If it's less then they overlap, if it's equal then they touch, if it's greater they are separate. And it's easy to...

drawing

Intersect multiple circels

20 Apr 2021 by Patrice T

Not really a programming question, more like geometry. Quote: How Can I see if 2 or more circels intersect or touching each other? Each circle is inside a rectangle, if both rectangle don't touch, circles don't touch. if rectangles touch, you...

drawing

[C#] how do I draw multiple images without flickering?

19 Oct 2020 by Member 14846576

I'm making a strategy game in C# (nothing too wild, no animations or action). I managed to draw a section of the map and allow the user to scroll it, using DrawImage and specify a region of the map image to draw: RectangleF srcRect = new...

drawing

image

[C#] how do I draw multiple images without flickering?

19 Oct 2020 by OriginalGriff

You can try setting the form DoubleBuffered property to true: Control.DoubleBuffered Property (System.Windows.Forms) | Microsoft Docs[^] and see if that improves it, but the best solution is not to use a PictureBox at all. Instead, put a Panel on...

drawing

image

Why does function createpolygonrgn() fail?

19 Sep 2020 by Patrice T

your code is very simple minded, and it is bad. Quote: i use Timer which redraws the digits every 100 milliseconds. A simple test can divide by 10 the workload of redraw: if (LastTime != NewTime) { redrawClock(); LastTime = NewTime; } ...

Why does function createpolygonrgn() fail?

19 Sep 2020 by Avtem

So i'm trying to create a digit clock using only WinAPI with C++ (see the screenshot)[^] Function drawDash() is called 7 times to draw one digit. i use Timer which redraws the digits every 100 milliseconds. Everything looks fine, but for...

Why does function createpolygonrgn() fail?

19 Sep 2020 by Rick York

Since you are using C++, I recommend writing a class to handle this for you. Here's one possibility : template class handleobj { public: handleobj( T h ) { m_handle = h; } virtual ~handleobj() { if(...

Why does function createpolygonrgn() fail?

19 Sep 2020 by KarstenK

Your problem is here:FillRgn(hdc, hrgnClip, CreateSolidBrush(color)); in creating a brush and NOT deleting it. Asign it to a var use it and than delete it later, or if the color is constant you need to create it only once. Your error case is...

Why does function createpolygonrgn() fail?

19 Sep 2020 by Richard MacCutchan

The only thing I can see that may be an issue is the following: FillRgn(hdc, hrgnClip, CreateSolidBrush(color)); DeleteObject(SelectObject(hdc, GetStockObject(WHITE_BRUSH))); Are you certain that DeleteObject is actually deleting the solid brush?

Fill a curve with a transparent gradient brush and save it C#

8 Sep 2020 by Mineodo68

UPDATE : Quote: The WinForms implementation of Form only permits a solid colour to be used as the transparency key. It's not possible to have varying levels of transparency. Hello, I'm actually working with Windows Forms and GDI+. I've got my...

drawing

Fill a curve with a transparent gradient brush and save it C#

8 Sep 2020 by Gerry Schmitz

.net - C# Create Gradient Image - Stack Overflow[^] This is a mod of the above (changed one of gradient colors and the file type). The point is you can save a transparent gradient; you just have to think more about how you apply your other...

drawing

I want a program to convert xy cordinate text file into dxf.

22 Oct 2019 by Member 14630688

I have a text file with cordinates of spline. I want a code to convert those cordinates into dxf file. What I have tried: I have less knowledge about points to dxf

I want a program to convert xy cordinate text file into dxf.

22 Oct 2019 by MadMyche

I hve no need for a spline to DXF convertor so I am not going to go out and write one. However I did minimal research (wikipedia) and found that they can be simple text files, and they have a published reference guide to the structure (see references below). What I would probably do first is to...

I want a program to convert xy cordinate text file into dxf.

21 Oct 2019 by KarstenK

Than you need to acquire the knowledge. I used my search engine to find the dxf format in the wikipedia. Read it to understand the format and follow some links. When you understand it, you may write some converter code. It is simple text readable format, so simple things shouldnt be too hard. ...

Task in C# windows forms on picturebox

18 Sep 2019 by Member 14596963

Draw two circles with the mouse on picturebox. When lowering the mouse, the center of the circle is set, and when released, its radius set. The coordinates of the center of the circles and their radii are displayed on the form (in Cartesian CS). Determine the mutual arrangement of circles...

Task in C# windows forms on picturebox

18 Sep 2019 by OriginalGriff

We are more than willing to help those that are stuck: but that doesn't mean that we are here to do it all for you! We can't do all the work, you are either getting paid for this, or it's part of your grades and it wouldn't be at all fair for us to do it all for you. So we need you to do the...

C# draw rectangle with negative heigth

30 Aug 2019 by Member 13482508

I made this function to sort the rectangle so that it will draw. private Rectangle SortedRect(Point P, Size S) { if (S.Width

realtime

shape

drawing

C# draw rectangle with negative heigth

30 Aug 2019 by kursatdemir58

Hello, I ve been googling for hours. Please help me! Im having trouble with real time rectangle drawing, Let's say 1st second I want to draw y1 to positive heigth, in 2nd second y1 to negative heigth. But DrawRectangle doesn't except negative values and doesn't draw. I show in drtail in picture...

realtime

shape

drawing

Hi, I start to learn draw shape with gdiplus, but how do I delete shape from canvas ?

23 May 2019 by Member 14430889

Dear All: i am new, i just start to learn draw shape with vs2012 c++ and Gdiplus about 5 weeks, i create a simple project to test, but when i draw polygon finish, i cannot delete any polygon which i selected from canvas, it not so easy like to delete a rectangle or a ellipse, only delete the...

Hi, I start to learn draw shape with gdiplus, but how do I delete shape from canvas ?

23 May 2019 by Richard MacCutchan

You should do all your painting/drawing to the screen in the function that handles the WM_PAINT message. Each time this function is called it should redraw all the shapes. When a shape is deleted you just remove it from the list of items to draw, and then call InvalidateRect to force a repaint...

Draw a blinking circle on canvas - android studio

30 Aug 2018 by Samira Radwan

I have created a method to switch between 2 colors every X time. I called this method on the class constructor (the class extends View) The method: private void setCircleAnimation(){ final int color1 = Color.parseColor("#3399ff"); final int color2 = Color.parseColor("#84c1ff"); ...

Android

Canvas

drawing

Draw a blinking circle on canvas - android studio

30 Aug 2018 by Samira Radwan

Hi all, I have java class extends view. I draw a simple circle on canvas. The requirements is to make this circle blink or flash. I have tried many things and searched alot with no luck. It's pretty easy to make textView or image blink by adding animation, but the circle I have to draw then make...

Android

Canvas

drawing

Draw a blinking circle on canvas - android studio

30 Aug 2018 by Gerry Schmitz

Blinking or "strobing" can cause epileptic fits in certain individuals and is therefore not recommended. It's grouped in with "web sites that suck". ("Rotating" is better IMO).

Android

Canvas

drawing

How can I draw rect on oninitdialog in MFC VC++?

3 Aug 2018 by Member 12533122

Hello people. I am drawing rect in my application on button click. but i want draw it on start of application. as i am drawing on OninitDialog function it will not drawing anything on it. so how can i draw it on starting application? What I have tried: void XYZ::OnBnClickedOk() { CRect rc;...

How can I draw rect on oninitdialog in MFC VC++?

3 Aug 2018 by KarstenK

Another solution is to use PostMessage for a WM_PAINT message which triggers the painting of your control. Best is to use InvalidateRect for the control before. Tip: Create the pens only once, as class members or as static objects to improve performance.

How can I draw rect on oninitdialog in MFC VC++?

3 Aug 2018 by Richard MacCutchan

If you draw objects outside of the function that responds to the WM_PAINT message, then it will not work. As soon as the dialog is shown it will erase the background and redraw all controls in the resource. You should add the rectangle into your resource settings.

How can I clear drawings done by cclientdc?

1 Aug 2018 by Member 12533122

Hello people, i am doing drawings on dialof in MFC vc++. i am drawing lines as per the different inputs i am getting from the serial. now i want to clear the drawings when i get another input. What I have tried: CClientDC dc(GetDlgItem(IDC_STATICDISPLAY)); CPen lDot(PS_DASH, 2, RGB(255,...

How can I clear drawings done by cclientdc?

1 Aug 2018 by KarstenK

If the control is completly owner drawn that you should use FillRect with your bckground color at first draw call. And I would suggest that you store the Windows-handle of the control and other constant objects (like the pen) as member variables to improve performance.

How can I clear drawings done by cclientdc?

1 Aug 2018 by Rick York

GetDlgItem(IDC_STATICDISPLAY)-...

Drawstring vs. Drawtext performance

4 May 2018 by Wendelius

There's a very nice conversation at c# - Fastest API for rendering text in Windows Forms? - Stack Overflow[^]

drawing

user-controls

Drawstring vs. Drawtext performance

4 May 2018 by creizlein

I have a custom control that used a lot of Label controls inside, and i started experiencing performance issues when drawing/redrawing the screen So i decided to remove them as they look overwhelming and just draw the texts I needed I started using Graphics.DrawString method, which was SUPER...

drawing

user-controls

How do I draw an arc that goes from 0 degrees to 180, and his perimiter is 20mm?

11 Dec 2017 by Member 12137971

How do I draw an arc that goes from 0 degrees to 180, and his perimiter is 20mm? The picture with an explanation[^] What I have tried: Graphics g = Graphics.FromImage(bmp); g.PageUnit = GraphicsUnit.Millimeter; Rectangle r = new Rectangle(0, 0, (int)(Math.Round((40 / 25.4) / (float)Math.PI *...

drawing

graphics

How do I draw an arc that goes from 0 degrees to 180, and his perimiter is 20mm?

11 Dec 2017 by alywaly

I would use the graphics DrawArc method and call this from overridden OnPaint(PaintEventArgs e) private void MyDrawArc(PaintEventArgs e) { // Create pen.d Pen pen = new Pen(Color.Black, 22); // coordinates int x = 100; int y =...

drawing

graphics

Dialog box drawing issue in windows XP

20 Oct 2017 by NoviceCoder871987

I have a weird issue with Dialog box on Windows XP it doesn't draw correctly, The listview doesn't redraw unless i do some thing that forces repaints like clicking on the size boarders then the listview show. But if i move the application somewhere on screen it goes hidden again. This picture...

Dialog box drawing issue in windows XP

20 Oct 2017 by NoviceCoder871987

Issue is fixed by using SetParent on listview and the parent set is the main dialog and when switching between tabs using SetParent to return the parent of listview to the sub dialog so the code still hide it with ShowWindow. Now the Listview always show on top. No flickering. Very good.

How to crop (make a rectangular hole in) a panel in C#

3 Sep 2017 by BillWoodruff

using System.Drawing; using System.Windows.Forms; namespace PathStuff { public static class PathExtensions { public static void MakeHole(this Control cntrl, Rectangle xrect) { var region = new Region(cntrl.ClientRectangle); region.Exclude(xrect);...

How to crop (make a rectangular hole in) a panel in C#

1 Sep 2017 by newbie1992

hello morning everyone anyone know how to crop (make a rectangular hole in) a control? i try to crop a square in the middle of the panel for an example if the size of my panel was Panel myPanel = new Panel() { Size = new Size(300, 800), Location = new Point(0,0); BackColor =...

How to crop (make a rectangular hole in) a panel in C#

31 Aug 2017 by Graeme_Grant

[moved from comments - thanks for the suggestion RickZeeland] Is the hole suppose to show objects behind it? Like a transparent hole? Something like this: Making Transparent Controls - No Flickering[^][^]???

How to crop (make a rectangular hole in) a panel in C#

31 Aug 2017 by RickZeeland

In addition to the nice article mentioned by Graeme (which deserves points really) Making Transparent Controls - No Flickering[^] , the following: If you want to "punch a hole", this article might be of interest: Phil Wright : Component Factory: .NET2, Transparent controls[^] Also using...

Drawing lines by using values from a datagridview

19 May 2017 by Meriç Kıranoğlu

I have a windows application. [^] When I click on Calculate, I make some calculations using those textboxes. with those calculations, I obtain some values and write them on a datagridview [^] At this point, I need to draw some lines using those values which are basically coordinates of my...

DataGrid

drawing

graphics

Drawing lines by using values from a datagridview

19 May 2017 by Meriç Kıranoğlu

Ok, somehow I managed to draw the lines. I'm leaving my solution here in case of anyone else needs it :) Pen myPen = new Pen(Color.Black); private void pictureBoxDraw_Paint(object sender, PaintEventArgs e) { myPen.Width = 2; if (binary > 0) ...

DataGrid

drawing

graphics

Drawing lines by using values from a datagridview

19 May 2017 by OriginalGriff

Look at the error message - it's not complaining about the draw, but about the format of the data you are trying to convert to a number. That's what a FormatException is there for! Most likely, the value in that specific cell is not what you think it is: it's not an integer! So extract the...

DataGrid

drawing

graphics

Get one gif frame at the time.

4 May 2017 by Toni_s

Hi all. I have a question about how to play animation without to use too much memory. I want to load in every Timer Tick only one frame directly from the disk, without to load all frames into memory in a variable. I have make one function for this, but if i called it slows down in every frame a...

How do I take output of textbox to manipulate JS?

12 Apr 2017 by Member 13113452

Okay so in the "What have you tried?" is the code I currently have. I was wondering if anyone could help me make it so a text box appears and when you paste a processing.js code it outputs a drawing. If that makes sense. Basically, fill(255, 255, 0); ellipse(200, 200, 200,...

How do I take output of textbox to manipulate JS?

12 Apr 2017 by Nick_3141592654

Your question isn't very clear. It seems that you want to create a web page containing a text box and a Canvas. You want a user to be able to type some text that happens to be javascript code into the text box, and for that JS code to execute. It also happens to be the case that the JS of...

Moving rectangles at run time

14 Dec 2016 by Sruthi Suresh

AM drawing multiple rectangles in my windows form and is saved to a rectangle list at run time.how do i move these rectangles with mouse and then save it to the rectangle list at run time so that the user can place these rectangles as they wishWhat I have tried:i tried to locate the...

rectangle

drawing

Moving rectangles at run time

14 Dec 2016 by Ralf Meier

to complete the Solution from CPallini a Little bit :If you do a MouseDown on your Form you have to look it the actual MousePosition is at a coordinate-range of one of your rectangles.If Yes you should memorize the actual MousePosition relative to the Rectangle-Postion.If you now move...

rectangle

drawing

Moving rectangles at run time

14 Dec 2016 by CPallini

"It didn't worked" is not pretty informative. Please elaborate.Anyway, I suppose you are missing a conversion from Screen to Client coordinates (or the opposite). Have a loook at Mouse Events in Windows Forms[^] and at Control.PointToClient Method (Point) (System.Windows.Forms)[^] (for sample...

rectangle

drawing

How to print in console a tree horizotally with links using C language

12 Dec 2016 by Patrice T

As programmer, your job is to create algorithms that solve specific problems and you can't rely on someone else to eternally do it for you, so there is a time where you will have to learn how to. And the sooner, the better.When you just ask for the solution, it is like trying to learn to drive...

How to print in console a tree horizotally with links using C language

12 Dec 2016 by Member 12898887

Hi, I'd like to print a given binary tree horizontally in C WITH LINKS between nodes.I've done it without links , when i tried to do it with links it really got messed up... So if anyone can give me the solution that will be very helpful.Thanx...PS: More explanations in the images...

How to: hatched comobox?

8 Dec 2016 by PZero1992

Hello,I am trying to make the background of a combobox hatched. I just want to have the Textbox part of the box hatched, not the button or the dropdown list.I have written the following code, and it works quite well, despite the fact, that it is hatched only for like 100ms and then the...

drawing

combobox

How to: hatched comobox?

8 Dec 2016 by Richard MacCutchan

You are using the wrong paint method, see Control.OnPaintBackground Method (PaintEventArgs) (System.Windows.Forms)[^].

drawing

combobox

C# draw rectangle with negative heigth

7 Dec 2016 by Dave Kreskowiak

It would seem kind of obvious to just check to make sure the height is greater than 0 before drawing the rectangle.

realtime

shape

drawing

How do I draw 2 seperate line on a one chart area using simpleperfchart in C# ?

3 Dec 2016 by Alper_Baysal

I am using the SimplePerfChart in my program. I am reading data from PLC and draw a line in a chart according to my data. But now i have to draw to seperate line on a single chart area (for example minimum and maximum values ) but i can't do it.Sorry for my english. It isn't my native...

chart

drawing

performance

How do I draw 2 seperate line on a one chart area using simpleperfchart in C# ?

3 Dec 2016 by Alper_Baysal

You are right i am talking about that project. I did that at the same time i posted this question.

chart

drawing

performance

How do I draw 2 seperate line on a one chart area using simpleperfchart in C# ?

2 Dec 2016 by Richard MacCutchan

Assuming you are talking about Simple Performance Chart[^] then you need to post your question in the forum at the end of the article.

chart

drawing

performance

How do I create a polygon route on android Google maps?

15 Oct 2016 by BurkusCat

Hi there,I am using the Google Location Services API on Android to periodically save a latitude/longitude they were at. I am trying to create a polygon around these points to create a route of where they have been. I want the route to take into the location accuracy for each of the points, so...

[tut 6] Line Drag & Drop & Line Selection

20 Jun 2016 by The Zakies

we will build an outline line around the drawn lines so we would test the mouse click on this outline to know which line is selected. and we would in the coming update build a select function inside the move tool

[tut4] Draw Lines with Circle and Rectangle End

7 Jun 2016 by The Zakies

[tut4] how to draw lines & to draw different types on end shapes like rectangle and circle using C#

How to make a drawing field? (Like sketching environment of CAD softwares)

10 May 2016 by farhad baghyari

Hi i am a mechanical engineering student.(so i don't know too much about programming)I wanna make a program that draws curves with rational Bezier (I should write the code myself and not using formGraphics.DrawBezier). I've recently started learning c# and i am so new to it. I've searched alot...

drawing

GUI

How to make a drawing field? (Like sketching environment of CAD softwares)

10 May 2016 by OriginalGriff

That's pretty simple to start with: the mouse capture stuff is trivial.Add a Panel to a form - call it "myDrawing" - and handle two events for the Panel: Paint, and MouseClick.Add a list to your form class:private List points = new List();Now, in the MouseClick handler, add...

drawing

GUI

Drawing a Rectangle in the C# Console

18 Apr 2016 by Ryan Scott White

Draw rectangles in a C# console window with this drop-in class

console

drawing

How could draw curves like windows' mspaint and then I could select some line to erase?

28 Mar 2016 by quguimin

as the title says, the program runs on the win32 platform;like the powerpoint file demonstration,the teacher could use mouse drawing,if the (graphics)lines are useless,they could be selected and deleted;anyone could help me analyse the tech-point or API using? thank you !What I have...

How could draw curves like windows' mspaint and then I could select some line to erase?

28 Mar 2016 by Serkan Onat

You can take Diagram Editor[^] as an example and extend its functionality based on the provided base classesOr DrawCLI sample (in Visual Studio Samples Pack) can be another example as a startup projectBut these two projects are based on MFC ,if use of MFC is a problem then you can easily...

How could draw curves like windows' mspaint and then I could select some line to erase?

27 Mar 2016 by Richard MacCutchan

You can use Windows GDI[^] to draw lines, curves etc. See Win32 Programming - FunctionX[^] for some useful tutorials.

Fourier Transform in Digital Signal Processing

6 Mar 2016 by Jakub Szymanowski

The article presents idea and implementation of Fourier Transform (DFT and FFT algorithms) in Digital Signal Processing.

Interactively Add Multiple Shapes Using Linked Lists GDI+ SVG

3 Mar 2016 by The Zakies

Tutorial 2 (how to interactively add multiple shapes GDI using linked lists)

Can a WPF Custom control use the Background Brush of the control's container.

18 Jan 2016 by Sergey Alexandrovich Kryukov

cmbay asked:…So the question is, is it possible to bind the Background of my control to its' container's background without explicitly identifying the container.It can be done by binding using RelativeSource. Please see:RelativeSource Class (System.Windows.Data)[^],C# Corner:...

WPF

templates

drawing

computational-geometry

custom-controls

Can a WPF Custom control use the Background Brush of the control's container.

17 Jan 2016 by cmbay

I am creating a WPF Custom Control Template and I would like one of the GeometryDrawing Brushs to use the Background Brush of the control's container. For example if I put this control on a Window I would like this particular Brush to use the Window's Background Brush. Like wise if the control...

WPF

templates

drawing

computational-geometry

custom-controls

How to Create a Simple Drawing App using HTML 5 Canvas [fabricJS]?

19 Dec 2015 by Swagat Parida

Steps to create a simple drawing app using HTML5 Canvas

How can I Draw Puzzle Piece with GDI+?

11 Dec 2015 by CHill60

Have a look at this CP article Professional C# - Graphics with GDI+[^]There is also a reference zone[^] here on CPOr there always the M$ documentation[^]

How can I Draw Puzzle Piece with GDI+?

11 Dec 2015 by Umut Comlekcioglu

Hello everyone,I'm developing Puzzle Game for my little brother. I wanna drawing Puzzle Piece like below. http://postimg.org/image/q5j410d3p/[^]I can't use Bitmap or Picturebox. So I need to draw it with Graphics Path but I don't know too much about Graphics Path.Anyone can help...

WPF: How to fill by ImageBrush drawn by OnRender?

28 Oct 2015 by Ziya1995

1. OnRender doesn't render in the code 1 because the visual MyImage is not added into a visual tree. But it renders when you add it into the visual tree of Canvas.Source:WPF: InvalidateVisual doesn't draw by OnRender.[^]2. Even if it renders on the surface of Canvas, it will not render...

WPF: InvalidateVisual doesn't draw by OnRender.

28 Oct 2015 by Ziya1995

OnRender doesn't get called until a visual gets added into a visual tree.If the goal is to get the image without adding the visual to the visual tree, you can use VisualCollection/DrawingVisual.Code: public partial class MainWindow : Window { public MainWindow() ...

WPF: How to fill by ImageBrush drawn by OnRender?

26 Oct 2015 by Ziya1995

Goal:1. Create Canvas.2. Create MyImage : Image.3. Draw MyImage by OnRender.4. Set MyImage source to ImageBrush source.5. Set ImageBrush to Canvas.Background.Problem: The canvas gets drawn empty instead of what OnRender should draw.Question: How to make it draw what is set to...

WPF: InvalidateVisual doesn't draw by OnRender.

26 Oct 2015 by Ziya1995

Goal: To use OnRender to draw into ImageBrush by RenderTargetBitmap.Problem: It doesn't draw.Question: How to do it using OnRender without adding Control as child to Canvas.Children?Notes:1. It works, if to add Control as child to Canvas.Children. You can do by turning the comment...

Best way to display and Print Company Logo on C# windows form

10 Oct 2015 by webmaster442

Windows Forms does not support svg or eps by default. You can use wmf or emf formats. They are both vector graphics. Just convert your image, set up image as resouce and assign it to a picturebox.

drawing

form

image

Best way to display and Print Company Logo on C# windows form

9 Oct 2015 by Umesh AP

Hi All, What is the Best way to display and print company logo on windows form. Container may be PictureBox, Panel or anything else. I am trying to use vector format images (.svg, .eps etc) for better clarity.

drawing

form

image

How to improve quality of Images in PictureBox Control

6 Oct 2015 by Member 4385570

https://msdn.microsoft.com/en-us/library/k0fsyd4e(v=vs.110).aspx

drawing

graphics

How to improve quality of Images in PictureBox Control

5 Oct 2015 by Umesh AP

Hi All, I have Panel on windows form containing labels for displaying information and 2 PictureBox controls. One for Company logo & other for captured photo) When i print them either on Printer or just save in PDF format, both images looking very blur. I want to improve quality of images. So...

drawing

graphics

Transform WPF GeometryDrawing where the GeometryDrawing path points are effectively changed

10 Sep 2015 by LiQuick

How do I scale a WPF GeometryDrawing where the GeometryDrawing path points are effectively changed? What I want to do is that I have a DrawingGroup of GeometryDrawings and I want to resize one of these GeometryDrawings. I know I can put this Geometrydrawing in a separate DrawingGroup and use...

C#4.0

WPF

drawing

C# WPF Draw a sequence of point at the border of my canvas

9 Sep 2015 by Patrick70__

The set of points can be quite large and it indicates the coordinates (kind of a photoshop ruler). It doesn't have to be too time-consuming and can be updated in case of zoom/pan. Furthermore I might have to add the number of the coordinate in same points.ThanxPatrick

WPF

Canvas

drawing

Transform WPF GeometryDrawing where the GeometryDrawing path points are effectively changed

31 Aug 2015 by DanBecause

I can't say I entirely understand what you mean by "really change the pathpoints", but the Transform property on the Geometry will scale the Geometry before it is rendered and the Geometry will be rendered as though it were the scaled size (not a zoomed version of the original size). So, for...

C#4.0

WPF

drawing