私はこのクラスを持っています:
WNDCLASSEX ActionButton::m_wndClass = CreateWndClass();
ActionButton::ActionButton() :
m_function(NULL), m_parameters(NULL), m_window()
{}
ActionButton::~ActionButton()
{
DestroyWindow(m_window);
}
bool ActionButton::DestroyButton()
{
return DestroyWindow(m_window);
}
bool ActionButton::Create(HWND parent, int x, int y, int heigth, int width)
{
HWND m_window = CreateWindowEx(0, L"Action button", NULL, WS_CHILD | WS_VISIBLE,
x, y, width, heigth, parent, NULL, NULL, NULL);
if (m_window == NULL)
return false;
SetWindowLongPtr(m_window, GWLP_USERDATA, reinterpret_cast<LONG_PTR>(this));
return true;
}
void ActionButton::SetFuncionLeftButtonDown(CallbackFunction f)
{
m_function = f;
}
void ActionButton::SetParametersLeftButtonDown(void* param)
{
m_parameters = param;
}
WNDCLASSEX ActionButton::CreateWndClass()
{
WNDCLASSEX m_wndClass = {0};
if (m_wndClass.cbSize == 0)
{
m_wndClass.cbSize = sizeof(WNDCLASSEX);
m_wndClass.style = CS_NOCLOSE;
m_wndClass.lpfnWndProc = WndProc;
m_wndClass.cbClsExtra = 0;
m_wndClass.cbWndExtra = 0;
m_wndClass.hInstance = GetModuleHandle(NULL);
m_wndClass.hIcon = NULL;
m_wndClass.hCursor = LoadCursor(NULL, IDC_ARROW);
m_wndClass.hbrBackground = HBRUSH(COLOR_BACKGROUND);
m_wndClass.lpszMenuName = NULL;
m_wndClass.lpszClassName = L"Action button";
m_wndClass.hIconSm = NULL;
}
RegisterClassEx(&m_wndClass);
return m_wndClass;
}
LRESULT __stdcall ActionButton::WndProc (HWND window, UINT msg, WPARAM wp, LPARAM lp)
{
ActionButton* classInfo = reinterpret_cast<ActionButton *>(GetWindowLongPtr(window, GWLP_USERDATA));
switch(msg)
{
case WM_LBUTTONDOWN:
{
(classInfo->m_function)(classInfo->m_parameters, classInfo);
classInfo->DestroyButton();
break;
}
case WM_DESTROY:
{
break;
}
default:
return DefWindowProc(window, msg, wp, lp);
}
return 0;
}
ウィンドウを破棄しないという問題が見つかりました。m_window
さらに、デストラクタとDestroy()
メソッドでデバッガーで確認しますNULL
。
このクラスを使用する私のコード:
void Function(void* input, ActionButton*)
{
std::cout << "Works :)\n";
}
//....
ActionButton button;
button.Create(Form.Get(), 150,150, 50,50);
button.SetFuncionLeftButtonDown(Function);