custom-controls

I'm playing around with drawing my own custom controls using the uxTheme library in Windows, and I can't work out why my control doesn't look like the regular Windows control that (supposedly) uses the same theme I'm using: The above image shows a standard Windows ComboBox (top) and my custom control drawn using the ComboBox theme (bottom). What I can't work out is why the border from my control is a different shape and colour to the standard control. In my class constructor I open the theme data: mComboTheme = OpenThemeData( hwnd, L"COMBOBOX" ); And then in the handler for WM_PAINT I'm just

I have a custom control like: public sealed class BorderEx : Control { public static readonly RoutedEvent ReloadClickEvent = EventManager.RegisterRoutedEvent("ReloadClick", RoutingStrategy.Bubble, typeof(RoutedEventHandler), typeof(BorderEx)); public event RoutedEventHandler ReloadClick { add { AddHandler(ReloadClickEvent, value); } remove { RemoveHandler(ReloadClickEvent, value); } } void RaiseReloadClickEvent() { var newEventArgs = new RoutedEventArgs(ReloadClickEvent); RaiseEvent(newEventArgs); } static BorderEx() { DefaultStyleKeyProperty.OverrideMetadata(typeof(BorderEx), new

I want to make a custom VCL control that wraps a SDL rendering surface via the SDL_CreateWindowFrom function. SDL_CreateWindowFrom takes an existing HWND handle and puts a high-performance rendering context (it has several backends available, including DirectX and OpenGL) onto it. The helpfile says "Do not refer to the Handle property during component creation or streaming." But it doesn't say why. It says that the first time you try to access the Handle property, it'll call HandleNeeded to ensure that a valid handle exists. So I have two questions. 1: What's the reason why you shouldn't

This question already has an answer here: Watermark TextBox in WinForms 8 answers Is it possible to create a textbox in Visual Studio like this: You would just need to handle three TextBox events, in the Designer set the text of the TextBox to "username" and make it Font Italics then set TextBox BackColor to LightYellow,the rest is handled by Event handlers... private void textBox1_TextChanged(object sender, EventArgs e) { if (textBox1.Text == "") ChangeTextBoxtoWatermark(); } private void textBox1_MouseEnter(object sender, EventArgs e) { if (textBox1.Text == "username") { textBox1.Text = "";

Closed. This question is off-topic. It is not currently accepting answers. Learn more . Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 5 years ago . I have to set some predefined values to MultiAutoCompleteTextView (before I select from suggestion drop down list). It's like, as if you selected 2-3 items from drop-down list. After setting these predefined values, again I want to continue with normal process of filtering from the list and add it to MultiAutoCompleteTextView . It would look like this Predefined1, Predefined2, Predefined3, If I do

I have a custom button, on which I am capturing its onTouchEvent. public class CustomNumber extends ToggleButton { boolean drawGlow = false; float glowX = 0; float glowY = 0; float radius = 30; public CustomNumber(Context context) { super(context); } public CustomNumber(Context context, AttributeSet attrs) { super(context, attrs); } public CustomNumber(Context context, AttributeSet attrs, int defStyle) { super(context, attrs, defStyle); } Paint paint = new Paint(); { paint.setAntiAlias(true); paint.setColor(Color.WHITE); paint.setAlpha(70); }; @Override public void draw(Canvas canvas){ super