Wings - A simple GUI library for D based on Win32 API.

Screenshot

How to use:

1. Clone or download the repo.
2. Place the wings folder in your project folder.
3. Import wings module in your source file. Done.
4. NOTE: You need a manifest file to style your gui. Copy and paste the app.exe.manifest file from this repo to your exe location. And rename the file with your exe file's name. For example, if your exe file's name is program.exe, the manifest file must be program.exe.manifest.

Sample code

Below is the code that created the window in above screenshot

// Since, Wings use delegates for event handling and D is an OOP language...
// We can wrap up the entire app in a class. It's handy.
import wings;

class App {

	this() 
	{
		this.createControls();
		this.setControlProps();		
	}

	void createControls()
	{
		// First of all, create the form aka window.
		frm = new Form("Wing window in D Lang", 920, 500);
		frm.createHandle();

		// Let's create a tray icon for this program.
		tic = new TrayIcon("Wings tray icon!", "wings_icon.ico");

		// Now, add a context menu to our tray. '|' is for separator.
		tic.addContextMenu(TrayMenuTrigger.anyClick, "Windows_ti", "Linux_ti", "|", "MacOS_ti");


		// If this set to true, all control handles will be
		// created right after the class ctor finished.
		frm.createChildHandles = true; 

		//Let's add a menu bar and some menu items
		mb = frm.addMenuBar("Windows", "Linux", "MacOS");
		
		// Add 3 buttons
		btn1 = new Button(frm, "Normal", 10, 10);
		btn2 = new Button(frm, "Color", btn1.right!10, 10);
		btn3 = new Button(frm, "Gradient", btn2.right!10, 10);

		cmb = new ComboBox(frm, btn3.right!10, 10, 150, 30);
		dtp = new DateTimePicker(frm, cmb.right!10, 10); 

		gb1 = new GroupBox(frm, "Compiler Options", 10, btn1.bottom!10, 200, 170);
		cb1 = new CheckBox(frm, "Profile", 15, btn1.bottom!40);
		cb2 = new CheckBox(frm, "Low Mem", 15, cb1.bottom!10);
		rb1 = new RadioButton(frm, "Console App", 15, cb2.bottom!10);
		rb2 = new RadioButton(frm, "Windowed App", 15, rb1.bottom!10);

		gb2 = new GroupBox(frm, "Project Data", 10, gb1.bottom!10, 220, 100);
		lb1 = new Label(frm, "Line Space", gb2.left!10, gb2.top!30);
		lb2 = new Label(frm, "Thread Count", gb2.left!10, lb1.bottom!10);

		// NumberPicker aka NumericUpdown in .NET
		np1 = new NumberPicker(frm, lb1.right!33, gb2.top!25);	
		np2 = new NumberPicker(frm, lb2.right!10, gb2.top!57, btnLeft : true);

		pgb = new ProgressBar(frm, 10, gb2.bottom!10, 204, 25);
		tb = new TextBox(frm, 10, pgb.bottom!10, pgb.width, 30);
		lbx = new ListBox(frm, gb1.right!10, btn1.bottom!15, 120, 160);

		// ListView ctor takes an array for items and another for col widths.
		lv = new ListView(frm, lbx.right!10, btn1.bottom!15, 300, 180,
 					 ["Windows", "Linux", "MacOS"], [80, 120, 100] );

		// Trackbar ctor takes a delegate for onValueChanged event.
		tkb1 = new TrackBar(frm, dtp.right!10, 10, 150, 40, true, &this.onTrackValueChanged);

		tv = new TreeView(frm, lv.right!10, lv.ypos, 200, 200);

		// Calendar aka MonthCalendar in .NET
		cal = new Calendar(frm, gb2.right!10, lv.bottom!15);

		// Another trackbar but this time, it's vertical.
		tkb2 = new TrackBar(frm, 500, 270, 60, 150, vertical: true, cdraw: true);

		// Add a timer with a delegate to handle the onTick event.
		tmr = frm.addTimer(800, &this.timerTickHandler);

	}

	void setControlProps()
	{	
		// Set some properties of our controls.
		btn1.onClick = &this.btn1OnClick;
		btn2.backColor = 0x83c5be;
		btn3.setGradientColors(0xeeef20, 0x70e000);
		btn3.onClick = &this.btn3Click;
		cmb.addRange("Form", "Button", "Calendar", "CheckBox", "ComboBox", "DateTimePicker", "GroupBox", 4500);
		cmb.dropDownStyle = DropDownStyle.labelCombo;
		cmb.selectedIndex = 4;
		gb1.foreColor = 0xd90429; // This only works for GroupBox text.
		np1.foreColor = 0x3f37c9;
		np1.step = 0.25; 
		np2.decimalPrecision = 0;
		np2.backColor = 0xcaffbf; 
		pgb.showPercentage = true;
		tb.foreColor = 0xff0000;    
		lbx.addRange("Windows", "Linux", "MacOS", "ReactOS");	
		lv.addRow("XP", "Mountain Lion", "RedHat");
		lv.addRow("Vista", "Mavericks", "Mint");
		lv.addRow("Win7", "Mavericks", "Ubuntu");
		lv.addRow("Win8", "Catalina", "Debian");
		lv.addRow("Win10", "Big Sur", "Kali");
		lv.addContextMenu("Windows", "Linux", "|", "MacOS");
		tv.backColor = 0xddddbb;
		auto n1 = new TreeNode("Windows");
		auto n2 = new TreeNode("Linux");
		auto n3 = new TreeNode("MacOS");
		auto n4 = new TreeNode("ReactOS");
		tv.addNodes(n1, n2, n3, n4);
		auto wn1 = new TreeNode("Win 11");
		auto wn2 = new TreeNode("Win 10");
		auto wn3 = new TreeNode("Win 8");	
		tv.addChildNodes(n1, wn1, wn2, wn3);
		auto ln1 = new TreeNode("Ubuntu");
		auto ln2 = new TreeNode("Debian");
		auto ln3 = new TreeNode("Fedora");
		tv.addChildNodes(n2, ln1, ln2, ln3);
		auto mn1 = new TreeNode("Monterey");
		auto mn2 = new TreeNode("Catalina");
		auto mn3 = new TreeNode("Mojave");
		tv.addChildNodes(n3, mn1, mn2, mn3);

		// Add menu items for our main menus.
		mb["Windows"].addItems("Windows 8", "|", "Windows 10",  "Windows 11");
		mb["Linux"].addItems("Ubuntu", "Debian", "Kali");
		mb["MacOS"].addItems("Mavericks", "Catalina", "Big Sur");

		// Add menu click event handler for tray icon context menu.
		tic.contextMenu["Windows_ti"].onClick = &this.onContextMenuClick;

		// Add handler for listview's context menu.
		lv.contextMenu["Linux"].onClick = &this.onLVContextMenuClick;
	}

	void display() {this.frm.show();}

	// When clicked on button, combo's drop down style will change. 
	void btn1OnClick(Control s, EventArgs e) {
		this.cmb.dropDownStyle = DropDownStyle.textCombo;
	}

	// Timer tick event handler
	void timerTickHandler(Control c, EventArgs e) {writeln("Timer ticked...");}

	// ProgressBar will show the track bar values.
	void onTrackValueChanged(Control c, EventArgs e) {
		pgb.value = tkb1.value;
	}

	void onContextMenuClick(MenuItem m, EventArgs e) {
		// delay(3000);
		writeln("Windows menu clicked");
	}

	void onLVContextMenuClick(MenuItem m, EventArgs e) {
		// delay(3000);
		writeln("Linux menu clicked");
	}

	void btn3Click(Control c, EventArgs e) {
		this.tic.showBalloon("Wings Balloon", "This is Wings Balloon Text", 3000);
	}

	private:
		Form frm;
		Button btn1, btn2, btn3;
		Calendar cal;
		CheckBox cb1, cb2;
		ComboBox cmb;
		DateTimePicker dtp;
		GroupBox gb1, gb2;
		Label lb1, lb2;
		ListBox lbx;
		ListView lv;
		MenuBar mb;
		NumberPicker np1, np2;
		ProgressBar pgb;
		RadioButton rb1, rb2;
		TextBox tb;
		TrackBar tkb1, tkb2;
		TreeView tv;
		Timer tmr;	
		TrayIcon tic;
}

void main() {
	auto app = new App();	
	app.display();
}