Пример #1
0
func (pb *PushButton) WndProc(hwnd win.HWND, msg uint32, wParam, lParam uintptr) uintptr {
	switch msg {
	case win.WM_GETDLGCODE:
		hwndFocus := win.GetFocus()
		if hwndFocus == pb.hWnd {
			form := ancestor(pb)
			if form == nil {
				break
			}

			dlg, ok := form.(dialogish)
			if !ok {
				break
			}

			defBtn := dlg.DefaultButton()
			if defBtn == pb {
				pb.setAndClearStyleBits(win.BS_DEFPUSHBUTTON, win.BS_PUSHBUTTON)
				return win.DLGC_BUTTON | win.DLGC_DEFPUSHBUTTON
			}

			break
		}

		pb.ensureProperDialogDefaultButton(hwndFocus)

	case win.WM_KILLFOCUS:
		pb.ensureProperDialogDefaultButton(win.HWND(wParam))
	}

	return pb.Button.WndProc(hwnd, msg, wParam, lParam)
}
Пример #2
0
// Focused returns whether the Window has the keyboard input focus.
func (wb *WindowBase) Focused() bool {
	return wb.hWnd == win.GetFocus()
}
Пример #3
0
func (fb *FormBase) WndProc(hwnd win.HWND, msg uint32, wParam, lParam uintptr) uintptr {
	switch msg {
	case win.WM_ACTIVATE:
		switch win.LOWORD(uint32(wParam)) {
		case win.WA_ACTIVE, win.WA_CLICKACTIVE:
			if fb.prevFocusHWnd != 0 {
				win.SetFocus(fb.prevFocusHWnd)
			}

		case win.WA_INACTIVE:
			fb.prevFocusHWnd = win.GetFocus()
		}
		return 0

	case win.WM_CLOSE:
		fb.closeReason = CloseReasonUnknown
		var canceled bool
		fb.closingPublisher.Publish(&canceled, fb.closeReason)
		if !canceled {
			if fb.owner != nil {
				fb.owner.SetEnabled(true)
				if !win.SetWindowPos(fb.owner.Handle(), win.HWND_NOTOPMOST, 0, 0, 0, 0, win.SWP_NOMOVE|win.SWP_NOSIZE|win.SWP_SHOWWINDOW) {
					lastError("SetWindowPos")
				}
			}

			fb.close()
		}
		return 0

	case win.WM_COMMAND:
		return fb.clientComposite.WndProc(hwnd, msg, wParam, lParam)

	case win.WM_GETMINMAXINFO:
		mmi := (*win.MINMAXINFO)(unsafe.Pointer(lParam))

		layout := fb.clientComposite.Layout()

		var min Size
		if layout != nil {
			min = fb.sizeFromClientSize(layout.MinSize())
		}

		mmi.PtMinTrackSize = win.POINT{
			int32(maxi(min.Width, fb.minSize.Width)),
			int32(maxi(min.Height, fb.minSize.Height)),
		}
		return 0

	case win.WM_NOTIFY:
		return fb.clientComposite.WndProc(hwnd, msg, wParam, lParam)

	case win.WM_SETTEXT:
		fb.titleChangedPublisher.Publish()

	case win.WM_SIZE, win.WM_SIZING:
		fb.clientComposite.SetBounds(fb.window.ClientBounds())

	case win.WM_SYSCOMMAND:
		if wParam == win.SC_CLOSE {
			fb.closeReason = CloseReasonUser
		}

	case taskbarButtonCreatedMsgId:
		version := win.GetVersion()
		major := version & 0xFF
		minor := version & 0xFF00 >> 8
		// Check that the OS is Win 7 or later (Win 7 is v6.1).
		if major > 6 || (major == 6 && minor > 0) {
			fb.progressIndicator, _ = newTaskbarList3(fb.hWnd)
		}
	}

	return fb.WindowBase.WndProc(hwnd, msg, wParam, lParam)
}
Пример #4
0
// FocusedWindow returns the Window that has the keyboard input focus.
func FocusedWindow() Window {
	return windowFromHandle(win.GetFocus())
}