Added buttons.

control.go

@@ -10,5 +10,5 @@ import (
 type Control interface {
 	apply() error
 	setParent(c Control)
-	setParentWindow(w *Window)
+	parentWindow() *Window
 }

controls_windows.go

@@ -9,65 +9,65 @@ import (
 // Button styles.
 const (
 	// from winuser.h
-	BS_PUSHBUTTON = 0x00000000
+	_BS_PUSHBUTTON = 0x00000000
-	BS_DEFPUSHBUTTON = 0x00000001
+	_BS_DEFPUSHBUTTON = 0x00000001
-	BS_CHECKBOX = 0x00000002
+	_BS_CHECKBOX = 0x00000002
-	BS_AUTOCHECKBOX = 0x00000003
+	_BS_AUTOCHECKBOX = 0x00000003
-	BS_RADIOBUTTON = 0x00000004
+	_BS_RADIOBUTTON = 0x00000004
-	BS_3STATE = 0x00000005
+	_BS_3STATE = 0x00000005
-	BS_AUTO3STATE = 0x00000006
+	_BS_AUTO3STATE = 0x00000006
-	BS_GROUPBOX = 0x00000007
+	_BS_GROUPBOX = 0x00000007
-	BS_USERBUTTON = 0x00000008
+	_BS_USERBUTTON = 0x00000008
-	BS_AUTORADIOBUTTON = 0x00000009
+	_BS_AUTORADIOBUTTON = 0x00000009
-	BS_PUSHBOX = 0x0000000A
+	_BS_PUSHBOX = 0x0000000A
-	BS_OWNERDRAW = 0x0000000B
+	_BS_OWNERDRAW = 0x0000000B
-	BS_TYPEMASK = 0x0000000F
+	_BS_TYPEMASK = 0x0000000F
-	BS_LEFTTEXT = 0x00000020
+	_BS_LEFTTEXT = 0x00000020
-	BS_TEXT = 0x00000000
+	_BS_TEXT = 0x00000000
-	BS_ICON = 0x00000040
+	_BS_ICON = 0x00000040
-	BS_BITMAP = 0x00000080
+	_BS_BITMAP = 0x00000080
-	BS_LEFT = 0x00000100
+	_BS_LEFT = 0x00000100
-	BS_RIGHT = 0x00000200
+	_BS_RIGHT = 0x00000200
-	BS_CENTER = 0x00000300
+	_BS_CENTER = 0x00000300
-	BS_TOP = 0x00000400
+	_BS_TOP = 0x00000400
-	BS_BOTTOM = 0x00000800
+	_BS_BOTTOM = 0x00000800
-	BS_VCENTER = 0x00000C00
+	_BS_VCENTER = 0x00000C00
-	BS_PUSHLIKE = 0x00001000
+	_BS_PUSHLIKE = 0x00001000
-	BS_MULTILINE = 0x00002000
+	_BS_MULTILINE = 0x00002000
-	BS_NOTIFY = 0x00004000
+	_BS_NOTIFY = 0x00004000
-	BS_FLAT = 0x00008000
+	_BS_FLAT = 0x00008000
-	BS_RIGHTBUTTON = BS_LEFTTEXT
+	_BS_RIGHTBUTTON = _BS_LEFTTEXT
 	// from commctrl.h
-//	BS_SPLITBUTTON = 0x0000000C		// Windows Vista and newer and(/or?) comctl6 only
+//	_BS_SPLITBUTTON = 0x0000000C		// Windows Vista and newer and(/or?) comctl6 only
-//	BS_DEFSPLITBUTTON = 0x0000000D	// Windows Vista and newer and(/or?) comctl6 only
+//	_BS_DEFSPLITBUTTON = 0x0000000D	// Windows Vista and newer and(/or?) comctl6 only
-//	BS_COMMANDLINK = 0x0000000E		// Windows Vista and newer and(/or?) comctl6 only
+//	_BS_COMMANDLINK = 0x0000000E		// Windows Vista and newer and(/or?) comctl6 only
-//	BS_DEFCOMMANDLINK = 0x0000000F	// Windows Vista and newer and(/or?) comctl6 only
+//	_BS_DEFCOMMANDLINK = 0x0000000F	// Windows Vista and newer and(/or?) comctl6 only
 )
 
 // Button WM_COMMAND notifications.
 const (
 	// from winuser.h
-	BN_CLICKED = 0
+	_BN_CLICKED = 0
-	BN_PAINT = 1
+	_BN_PAINT = 1
-	BN_HILITE = 2
+	_BN_HILITE = 2
-	BN_UNHILITE = 3
+	_BN_UNHILITE = 3
-	BN_DISABLE = 4
+	_BN_DISABLE = 4
-	BN_DOUBLECLICKED = 5
+	_BN_DOUBLECLICKED = 5
-	BN_PUSHED = BN_HILITE
+	_BN_PUSHED = _BN_HILITE
-	BN_UNPUSHED = BN_UNHILITE
+	_BN_UNPUSHED = _BN_UNHILITE
-	BN_DBLCLK = BN_DOUBLECLICKED
+	_BN_DBLCLK = _BN_DOUBLECLICKED
-	BN_SETFOCUS = 6
+	_BN_SETFOCUS = 6
-	BN_KILLFOCUS = 7
+	_BN_KILLFOCUS = 7
 )
 
 // Button check states.
 const (
 	// from winuser.h
-	BST_UNCHECKED = 0x0000
+	_BST_UNCHECKED = 0x0000
-	BST_CHECKED = 0x0001
+	_BST_CHECKED = 0x0001
-	BST_INDETERMINATE = 0x0002
+	_BST_INDETERMINATE = 0x0002
 )
-
+/*
 var (
 	checkDlgButton = user32.NewProc("CheckDlgButton")
 	checkRadioButton = user32.NewProc("CheckRadioButton")
@@ -402,3 +402,4 @@ const (
 	STN_ENABLE = 2
 	STN_DISABLE = 3
 )
+*/

main.go

@@ -4,11 +4,21 @@ package main
 func main() {
 	w := NewWindow("Main Window", 320, 240)
 	w.Closing = make(chan struct{})
+	b := NewButton("Click Me")
+	w.SetControl(b)
 	err := w.Open()
 	if err != nil {
 		panic(err)
 	}
-	<-w.Closing
+mainloop:
+	for {
+		select {
+		case <-w.Closing:
+			break mainloop
+		case <-b.Clicked:
+			println("clicked")
+		}
+	}
 	w.Close()
 }
 

sysdata.go

@@ -7,7 +7,8 @@ import (
 
 // The sysData type contains all system data. It provides the system-specific underlying implementation. It is guaranteed to have the following by embedding:
 type cSysData struct {
-	ctype	int
+	ctype			int
+	parentWindow		*sysData
 
 	// for Window
 	closing	chan struct{}

sysdata_windows.go

@@ -23,8 +23,8 @@ type classData struct {
 	mkid		bool
 }
 
-//const controlstyle = _WS_CHILD | _WS_VISIBLE | _WS_TABSTOP
+const controlstyle = _WS_CHILD | _WS_VISIBLE | _WS_TABSTOP
-//const controlxstyle = 0
+const controlxstyle = 0
 
 var classTypes = [nctypes]*classData{
 	c_window:	&classData{
@@ -32,12 +32,12 @@ var classTypes = [nctypes]*classData{
 		style:	_WS_OVERLAPPEDWINDOW,
 		xstyle:	0,
 	},
-//	c_button:		&classData{
+	c_button:		&classData{
-//		name:	"BUTTON"
+		name:	"BUTTON",
-//		style:	_BS_PUSHBUTTON | controlstyle,
+		style:	_BS_PUSHBUTTON | controlstyle,
-//		xstyle:	0 | controlxstyle,
+		xstyle:	0 | controlxstyle,
-//		mkid:	true,
+		mkid:	true,
-//	},
+	},
 }
 
 var (
@@ -56,8 +56,10 @@ func (s *sysData) make(initText string, initWidth int, initHeight int) (err erro
 	ret := make(chan uiret)
 	defer close(ret)
 	ct := classTypes[s.ctype]
+	pwin := uintptr(_NULL)
 	if ct.mkid {
 		s.cid = nextID()
+		pwin = uintptr(s.parentWindow.hwnd)
 	}
 	uitask <- &uimsg{
 		call:		_createWindowEx,	
@@ -70,7 +72,7 @@ func (s *sysData) make(initText string, initWidth int, initHeight int) (err erro
 			uintptr(_CW_USEDEFAULT),
 			uintptr(initWidth),
 			uintptr(initHeight),
-			uintptr(_NULL),					// TODO parent
+			pwin,
 			uintptr(s.cid),
 			uintptr(hInstance),
 			uintptr(_NULL),

window.go

@@ -47,7 +47,6 @@ func (w *Window) SetControl(control Control) (err error) {
 	}
 	w.control = control
 	w.control.setParent(w)
-	w.control.setParentWindow(w)
 	return nil
 }
 
@@ -112,6 +111,6 @@ func (w *Window) apply() error {
 func (w *Window) setParent(c Control) {
 	panic("Window.setParent() should never be called")
 }
-func (w *Window) setParentWindow(w2 *Window) {
+func (w *Window) parentWindow() *Window {
-	panic("Window.setParent() should never be called")
+	panic("Window.parentWindow() should never be called")
 }