I am creating a Windows Forms control derived from UserControl to be embedded in a WPF app. I have generally followed the procedures given in this link. public ref class CTiledImgViewControl : public UserControl { ... virtual void OnPaint( PaintEventArgs^ e ) override; ... }; And in my CPP file: void CTiledImgViewControl::OnPaint( ...
I have a simple panel that is used as a drawing surface. The goal here is to draw a 4 pixel wide outline around a child ListView under certain circumstances. I would like to make the outline pulsate when something can be dragged into it. I am just drawing a simple rectangle around the ListView and updating the opacity of the rectang...
I have several user drawn controls on a form, unfortunately when the form is shown the user drawn controls are showing the previous forms background rather than the current forms background. The OnPaint event is very simple, and the OnBackgroundPaint event is empty... Like this: protected override void OnPaint(PaintEventArgs p...
So the transparent background problem is solved. Now, every time I show the form (or have to have it repainted), I get a lot of flickering. Is there any way I can not update the screen until the paint event is complete, or any other way to stop the 1/2 second of flickering and flashing while all the objects are being painted? ANSWER: ...
I have a screen with say 20 controls on it. I want to show all twenty, then hide only the ones that don't relate to what I'm working on. psudoCode. for each element show element for each element in hide list hide element. My problem is that between the loops the screen paints. It looks very ugly. I know I've seen this do...
I would like to extend the System.Windows.Forms.ComboBox control with a ReadOnly property, which would display the selected item’s text (similar to a label) when ReadOnly = true. (I do not like the disabled look achieved by setting Enabled=false) How do I do this in winforms? It was really simple in ASP.NET where all I had to do was ove...
Hi, I'm trying to make an ImageListBox kind of control that will display large numbers of thumbnails, like the one that Picasa uses. This is my design: I have a FlowLayoutPanel that is populated with a LOT of UserControls, for example 4,000. Each UserControl is assigned a delegate for the Paint event. When the Paint event is called, i...
Hi! I'm developing and C# app for Windows Mobile. I have a custom control with OnPaint overrided to draw an image that the user moves with the pointer. My own OnPaint method is this: protected override void OnPaint(PaintEventArgs e) { Graphics gxOff; //Offscreen graphics Brush backBrush; if (m_bmpOffscreen == null) //Bit...
I've a UserControl (WinForms, .net 2.0), and I've this: protected override void OnPaint(PaintEventArgs e) { base.OnPaint(e); var rect = e.ClipRectangle; var pen = new Pen(Brushes.LightGray, 1); e.Graphics.DrawRectangle(pen, rect); } I basically want to draw a border on the UserControl, but the rectangle is being draw in all the ...
I have subclassed a control in C# WinForms, and am custom drawing text in my OnPaint() handler. The font is set to Courier New using the following code in my form: FontFamily family = new FontFamily("Courier New"); this.myControl.Font = new Font(family, 10); In the control itself, the string is stored in realText, and I use the follow...
Was thinking it should be pretty easy to create a ProgressBar that drew some text upon itself. However, I am not quite sure what is happening here... I added the following two overrides: protected override void OnPaintBackground(PaintEventArgs pevent) { base.OnPaintBackground(pevent); var flags = TextFormatFlags...
How to draw inside a child window? I thought I should create the main window CreateWindow(WS_OVERLAPPEDWINDOW | WS_CLIPCHILDREN) with some WndProc (without WM_PAINT). On its WM_CREATE I create another window CreateWindow(WS_CHILD | WS_CLIPCHILDREN) with another WndProc2 which reacts to WM_PAINT. However, it seems that the another handle...
Hello. I'm developing a Windows Mobile 5.0 and above application with .Net Compact Framework 2.0 SP2 with C#. I'm overriding OnPaint method on a custom messagebox that draw a bitmap that fills the entire form with alpha transparency, and a gradient box with a button and a message over the semi-transparent background. I'm testing it bu...
I am programming in Visual Studio .Net and using C#. I am creating my own control that draws a wave based on values I get from an analog to digital converter (ADC). I take the incoming points and convert them into X and Y points to properly draw the graph in my control. I have a loop inside my OnPaint method that goes through all the ...
I'm trying to move a form smoothly using code given on question http://stackoverflow.com/questions/967968/how-to-smoothly-animate-windows-forms-location-with-different-speeds But for some reason my this.Invalidate() call will never fire up the OnPaint event. Is there some configuration that's required on the form for this to be possible...
I have a number of graphics objects which I am plotting in a graphics context in a windows forms application. There is some interaction with the ui element in which the paths are rendered which allows the user to pan, zoom and set an origin for the zoom point. The question I have is, is it possible to set up a sequence of transform opera...
I am trying to make a subclass of wx.StaticText that has no background. I tried setting the background's alpha component with SetBackgroundColor, or using SetTransparent on various objects with no luck, but maybe it is only because I am a noobie :) Anyway, I ended up subclassing wx.StaticText, modifying the OnPaint method so that no bac...
How can I create a application window that is showing just the borders of the window, but i don't want to show the contents of the window itself. I mean i want to see the rest of the desktop or the others windows through the entire region of my window. No using transparences. Just draw the borders. I suppose it's like detecting the mess...
The main form has added a panel(from now called "imagePanel") to itself. The panel is automatically stretched by some elements on the top and on the left side. Autoscroll is true, so i can scroll around in the panel. Here is my problem: When i scroll down or sideways on the panel, the image is always THERE. e.g: I have scrolled down t...
I have overridden the OnPaint method of my Label control in VS2008: void Label_OnPaint(object sender, PaintEventArgs e) { base.OnPaint(e); Label lbl = sender as Label; if (lbl != null) { string Text = lbl.Text; e.Graphics.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias; if (myShowShadow) { // draw the ...