pb编程框架Kodigo3.3.1.5

//**************************************************************************** #pragma warning(disable : 4786) #include <windows.h> #include <pbext.h> #include <richedit.h> #include <commctrl.h> #include <math.h> #include <string> using std::string; HMODULE g_dll_hModule = 0; PBXEXPORT LPCTSTR PBXCALL PBX_GetDescription() { static const TCHAR desc[] = { "class u_canvas from userobject\n" "event int onpaint(ulong hdc)\n" "end class\n" }; return desc; } class CVisualExt : public IPBX_VisualObject { static TCHAR s_className[]; IPB_Session* d_session; pbobject d_pbobj; HWND d_hwnd; string d_text; bool d_buffer; public: static HDC memdc; CVisualExt(IPB_Session* session, pbobject pbobj) : d_session(session), d_pbobj(pbobj), d_hwnd(NULL), d_text("Visual Extension") { } ~CVisualExt() { } LPCTSTR GetWindowClassName(); HWND CreateControl ( DWORD dwExStyle, // extended window style LPCTSTR lpWindowName, // window name DWORD dwStyle, // window style int x, // horizontal position of window int y, // vertical position of window int nWidth, // window width int nHeight, // window height HWND hWndParent, // handle to parent or owner window HINSTANCE hInstance // handle to application instance ); PBXRESULT Invoke ( IPB_Session *session, pbobject obj, pbmethodID mid, PBCallInfo *ci ); void Destroy() { delete this; DestroyWindow(d_hwnd); } HDC GetMemDC() { return memdc; } void TriggerEvent(LPCTSTR eventName); static void RegisterClass(); static void UnregisterClass(); static LRESULT CALLBACK WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam); }; TCHAR CVisualExt::s_className[] = "PBVisualExt"; HDC CVisualExt::memdc = 0; LPCTSTR CVisualExt::GetWindowClassName() { return s_className; } HWND CVisualExt::CreateControl ( DWORD dwExStyle, // extended window style LPCTSTR lpWindowName, // window name DWORD dwStyle, // window style int x, // horizontal position of window int y, // vertical position of window int nWidth, // window width int nHeight, // window height HWND hWndParent, // handle to parent or owner window HINSTANCE hInstance // handle to application instance ) { d_hwnd = CreateWindowEx(dwExStyle, s_className, lpWindowName, dwStyle, x, y, nWidth, nHeight, hWndParent, NULL, hInstance, NULL); ::SetWindowLong(d_hwnd, GWL_USERDATA, (LONG)this); return d_hwnd; } PBXRESULT CVisualExt::Invoke ( IPB_Session *session, pbobject obj, pbmethodID mid, PBCallInfo *ci ) { //switch(mid) //{ //case 1: // return PBX_FAIL; //default: // return PBX_FAIL; //} return PBX_OK; } void CVisualExt::TriggerEvent(LPCTSTR eventName) { pbclass clz = d_session->GetClass(d_pbobj); pbmethodID mid = d_session->GetMethodID(clz, eventName, PBRT_EVENT, ""); pbulong lpb = (pbulong)memdc; PBCallInfo ci; d_session->InitCallInfo(clz, mid, &ci); pbint cnt = ci.pArgs->GetCount(); ci.pArgs->GetAt(0)->SetUlong(lpb); d_session->TriggerEvent(d_pbobj, mid, &ci); d_session->FreeCallInfo(&ci); //ci.returnValue->SetInt(0); } void CVisualExt::RegisterClass() { WNDCLASS wndclass; wndclass.style = CS_GLOBALCLASS | CS_DBLCLKS; wndclass.lpfnWndProc = WindowProc; wndclass.cbClsExtra = 0; wndclass.cbWndExtra = 0; wndclass.hInstance = g_dll_hModule; wndclass.hIcon = NULL; wndclass.hCursor = LoadCursor (NULL, IDC_ARROW); wndclass.hbrBackground = (HBRUSH) (COLOR_WINDOW + 1); wndclass.lpszMenuName = NULL; wndclass.lpszClassName = s_className; ::RegisterClass (&wndclass); } void CVisualExt::UnregisterClass() { ::UnregisterClass(s_className, g_dll_hModule); } LRESULT CALLBACK CVisualExt::WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam) { CVisualExt* ext = (CVisualExt*)::GetWindowLong(hwnd, GWL_USERDATA); switch(uMsg) { case WM_CREATE: return 0; case WM_SIZE: return 0; case WM_COMMAND: return 0; case WM_ERASEBKGND: return 1; case WM_PAINT: { PAINTSTRUCT ps; HDC hdc = BeginPaint(hwnd, &ps); RECT rc; GetClientRect(hwnd, &rc); HDC lmemdc = CreateCompatibleDC(hdc); HBITMAP hmembmp = CreateCompatibleBitmap(hdc, rc.right - rc.left, rc.bottom - rc.top); HBITMAP oldbmp = (HBITMAP)SelectObject(lmemdc, hmembmp); memdc = lmemdc; ext->TriggerEvent("onpaint"); BitBlt(hdc, rc.left, rc.top, rc.right - rc.left, rc.bottom - rc.top, lmemdc, 0, 0, SRCCOPY); SelectObject(lmemdc, oldbmp); DeleteObject(hmembmp); DeleteDC(lmemdc); EndPaint(hwnd, &ps); return 0; } } return DefWindowProc(hwnd, uMsg, wParam, lParam); } PBXEXPORT PBXRESULT PBXCALL PBX_CreateVisualObject ( IPB_Session* pbsession, pbobject pbobj, LPCTSTR className, IPBX_VisualObject **obj ) { PBXRESULT result = PBX_OK; string cn(className); if (cn.compare("u_canvas") == 0) { *obj = new CVisualExt(pbsession, pbobj); } else { *obj = NULL; result = PBX_FAIL; } return PBX_OK; }; BOOL APIENTRY DllMain( HANDLE hModule, DWORD reasonForCall, LPVOID lpReserved ) { g_dll_hModule = HMODULE(hModule); switch (reasonForCall) { case DLL_PROCESS_ATTACH: CVisualExt::RegisterClass(); break; case DLL_THREAD_ATTACH: case DLL_THREAD_DETACH: break; case DLL_PROCESS_DETACH: CVisualExt::UnregisterClass(); break; } return TRUE; }