func (w *Window) LockSize(lock bool) {
prevStyle := int(w32.GetWindowLongPtr(w.hwnd, w32.GWL_STYLE))
if lock {
prevStyle &= ^(w32.WS_MAXIMIZEBOX | w32.WS_SIZEBOX)
} else {
prevStyle |= w32.WS_MAXIMIZEBOX | w32.WS_SIZEBOX
}
w32.SetWindowLongPtr(w.hwnd, w32.GWL_STYLE, uintptr(prevStyle))
}
func (this *W32Control) init(className string, parent Controller, exstyle, style uint) {
this.hwnd = CreateWindow(className, parent, exstyle, style)
if this.hwnd == 0 {
panic("cannot create window for " + className)
}
this.isMouseLeft = true
this.originalWndProc = w32.SetWindowLongPtr(this.hwnd, w32.GWLP_WNDPROC, GeneralWndprocCallBack)
this.ControlBase.init(parent)
}
func ToggleExStyle(hwnd w32.HWND, b bool, style int) {
originalStyle := int(w32.GetWindowLongPtr(hwnd, w32.GWL_EXSTYLE))
if originalStyle != 0 {
if b {
originalStyle |= style
} else {
originalStyle ^= style
}
w32.SetWindowLongPtr(hwnd, w32.GWL_EXSTYLE, uintptr(originalStyle))
}
}
func (this *W32Control) attach(parent Controller, dlgItemID int) {
if parent == nil {
panic("parent cannot be nil")
}
if this.hwnd = w32.GetDlgItem(parent.Handle(), dlgItemID); this.hwnd == 0 {
panic("hwnd cannot be nil")
}
this.isMouseLeft = true
this.originalWndProc = w32.SetWindowLongPtr(this.hwnd, w32.GWLP_WNDPROC, GeneralWndprocCallBack)
this.ControlBase.init(parent)
}