I am making a SVG renderer for Windows using the Windows API and GDI+. SVG allows setting the 'fill' and 'stroke' style attributes on a Path. I am having some difficulty with the implementation of the 'fill' attribute. The following path represents a spiral: <svg:path style="fill:yellow;stroke:blue;stroke-width:2" d="...
if i use textout("this text") with a particular font/style, i want to find out the (x,y) coords of 't' 'h' 'i' 's' chars. i cant use the printer route. how else can i obtain the individual x,y coords. ...
The closest I can think of using is the GroupBox control which has a custom drawing at the top identifying the panel. Is it doable? I have done independent custom controls like buttons, sliders, color pickers, but not totally sure if this sort of drawing can be done on a GroupBox? I would need the grouping of a GroupBox or a TabPanel. ...
I got the value to show up correctly using: [DefaultValue ( typeof ( Color ), "255, 0, 0" )] public Color LineColor { get { return lineColor; } set { lineColor = value; Invalidate ( ); } } But after I reload the project the control is used, this value is set to White, which I can invoke Reset to get back to Red again, but I do...
Hi, I was looking about some GDI tutorial but everything I have found so far works with OnPaint method, which passes Paintarguments to Graphics. I have not found how to start from scratch, I mean how to use Graphics class itself? This is the whole code I have treid that just doesnt work for me: using System; using System.Collections.Gen...
Hi, I'm creating a graphing application using ZedGraph, which uses GDI+. If a curve is overflowing past the chart, I wrap it around to the other side. I do this by clipping the chart and just redrawing the curve as many times as it needs to wrap. for(int i=startShift; i<=endShift; i++); { g.TranslateTransform(chartWidth,0); g.Dr...
Anyone knows any tutorials with this topic? I searched the net but I see mostly asp.net controls, not winforms. ...
Is this the way to hide properties in derived controls? public class NewButton : Button ... [Browsable ( false )] public new ContentAlignment TextAlign { get; set; } Also this hides the property in the Properties window in the designer but how can I also hide the property in code? ...
After several days of tracking down bizarre GDI+ errors, I've stumbled across this little gem on MSDN: Classes within the System.Drawing namespace are not supported for use within a Windows or ASP.NET service. Attempting to use these classes from within one of these application types may produce unexpected problems, such as diminishe...
I have a composite control that is includes a groupbox control. The problem is it covers the controls that are placed on top of this composite control. Even though I send the new controls to top, so they should be visible, but they aren't. When I just use the groupbox, of course it shows through things so you see the included controls, ...
I am writing an app in WPF (C#) that plots certain types of fractals. The data sets are 3d points and need to represented as single pixels. The user can click and drag to rotate the plots The amount of points varies but can be quite large (five million plots or more). Currently I am drawing onto a System.Drawing.Bitmap using a Graphi...
To create dynamic charts and graphs in ASP.Net, I have placed the (GDI+) code for each chart in separate page files – so the output from running a chart page by itself if to just display the chart onscreen. The chart page contains the code to get the relevant data from SQL Server, as well as the chart generation code. The generated cha...
Hello everybody, I try to find out, how to access the Effect-Class and it's decendants of GDI+ in C#. Especially, I'm interested in these: * Blur * Sharpen * Tint * RedEyeCorrection * ColorMatrixEffect * ColorLUT * BrightnessContrast * HueSaturationLightness * ColorBalance * Levels * ColorCurve Can anybody give me a hint, how to ac...
Given a number of pixels (say: 300) and a Font (fixed type, fixed size, like Consolas), how could I determine the maximum number of characters that I could draw with GDI+? The text won't be written to a Label or such, but drawn using GDI+: public void DrawString( string s, Font font, Brush brush, RectangleF layoutRectangle, String...
Hi all Please help me for this--- In my project all drawing operations are done by using CDC object. CDC stretchBlt , BitBlt like functions are used. I want to copy contents of this on GDI+ Graphic object created using Bitmap. I tried following code, but its not woking Can anyone help me.......???????? sDC = GetDC(); Bitmap* scrollBi...
I'm fighting an issue where my resized images looses color saturation when I manipulate them using GDI. I'm loading an JPG as original, resize it and the resulting image has a lot less saturation (color intensity) than the original picture. What can I do to improve that? this is my code: using ( var original = System.Drawing.Image.F...
I have this method for shrinking down an image for a website that I'm working on: static byte[] createSmallerImage( BlogPhoto blogPhoto, int newMaxWidth, int newMaxHeight) { Image img; using (MemoryStream originalImage = new MemoryStream(blogPhoto.BlogPhotoImage)) { img = Image.FromStream(originalImage);...
I'm writing a Win32 application using C++. In this application I'm handling the WM_PAINT message: case WM_PAINT: hdc = BeginPaint(hWnd, &ps); GdiplusStartup(&gdiplusToken, &gdiPlusStartup, 0); DrawM(ps.hdc, hWnd); EndPaint(hWnd, &ps); break; And in the DrawM function I'm having something like this: void DrawMap(HDC hdc, HWND hW...
Bitmap bff(L"1.jpg"); bff.Save(L"2.jpg", &Gdiplus::ImageFormatJPEG, NULL); This creates a new file 2.jpg with zero-bytes length. Isn't it supposed to write an image file that is identical to 1.jpg? Why I'm having zero-bytes length files? I'm doing this test because writing other Bitmaps to files end the same way. ...
hi friends, I have a project that in those i draw some shape from some layer. For example I have two circle in circle Layer and three rectangle in rectangle Layer and so on.I draw the result with call Layer.Draw and marge the layers result with a Graphics object. I can select one shape in picture box and specify it on layer. and i can d...