func (mw *MainWindow) SetFullscreen(fullscreen bool) error {
if fullscreen == mw.Fullscreen() {
return nil
}
if fullscreen {
var mi win.MONITORINFO
mi.CbSize = uint32(unsafe.Sizeof(mi))
if mw.windowPlacement == nil {
mw.windowPlacement = new(win.WINDOWPLACEMENT)
}
if !win.GetWindowPlacement(mw.hWnd, mw.windowPlacement) {
return lastError("GetWindowPlacement")
}
if !win.GetMonitorInfo(win.MonitorFromWindow(
mw.hWnd, win.MONITOR_DEFAULTTOPRIMARY), &mi) {
return newError("GetMonitorInfo")
}
if err := mw.ensureStyleBits(win.WS_OVERLAPPEDWINDOW, false); err != nil {
return err
}
if r := mi.RcMonitor; !win.SetWindowPos(
mw.hWnd, win.HWND_TOP,
r.Left, r.Top, r.Right-r.Left, r.Bottom-r.Top,
win.SWP_FRAMECHANGED|win.SWP_NOOWNERZORDER) {
return lastError("SetWindowPos")
}
} else {
if err := mw.ensureStyleBits(win.WS_OVERLAPPEDWINDOW, true); err != nil {
return err
}
if !win.SetWindowPlacement(mw.hWnd, mw.windowPlacement) {
return lastError("SetWindowPlacement")
}
if !win.SetWindowPos(mw.hWnd, 0, 0, 0, 0, 0, win.SWP_FRAMECHANGED|win.SWP_NOMOVE|
win.SWP_NOOWNERZORDER|win.SWP_NOSIZE|win.SWP_NOZORDER) {
return lastError("SetWindowPos")
}
}
return nil
}
func (fb *FormBase) RestoreState() error {
if fb.isInRestoreState {
return nil
}
fb.isInRestoreState = true
defer func() {
fb.isInRestoreState = false
}()
state, err := fb.getState()
if err != nil {
return err
}
if state == "" {
return nil
}
var wp win.WINDOWPLACEMENT
if _, err := fmt.Sscan(state,
&wp.Flags, &wp.ShowCmd,
&wp.PtMinPosition.X, &wp.PtMinPosition.Y,
&wp.PtMaxPosition.X, &wp.PtMaxPosition.Y,
&wp.RcNormalPosition.Left, &wp.RcNormalPosition.Top,
&wp.RcNormalPosition.Right, &wp.RcNormalPosition.Bottom); err != nil {
return err
}
wp.Length = uint32(unsafe.Sizeof(wp))
if !win.SetWindowPlacement(fb.hWnd, &wp) {
return lastError("SetWindowPlacement")
}
return fb.clientComposite.RestoreState()
}