#include #include #include #include static LRESULT CALLBACK TestWndProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam) { PCOPYDATASTRUCT pCopyData; switch (uMsg) { case WM_COPYDATA: { pCopyData = (PCOPYDATASTRUCT) lParam; if (!pCopyData) break; printf("WM_COPYDATA: cbData: %d dwData: %d\n", (int) pCopyData->cbData, (int) pCopyData->dwData); } break; case WM_CLOSE: printf("WM_CLOSE\n"); break; default: printf("TestWndProc: uMsg: 0x%04X\n", uMsg); return DefWindowProc(hwnd, uMsg, wParam, lParam); break; } return 0; } int TestWndWmCopyData(int argc, char* argv[]) { HWND hWnd; HMODULE hModule; HINSTANCE hInstance; WNDCLASSEX wndClassEx; hModule = GetModuleHandle(NULL); ZeroMemory(&wndClassEx, sizeof(WNDCLASSEX)); wndClassEx.cbSize = sizeof(WNDCLASSEX); wndClassEx.style = 0; wndClassEx.lpfnWndProc = TestWndProc; wndClassEx.cbClsExtra = 0; wndClassEx.cbWndExtra = 0; wndClassEx.hInstance = hModule; wndClassEx.hIcon = NULL; wndClassEx.hCursor = NULL; wndClassEx.hbrBackground = NULL; wndClassEx.lpszMenuName = _T("TestWndMenu"); wndClassEx.lpszClassName = _T("TestWndClass"); wndClassEx.hIconSm = NULL; if (!RegisterClassEx(&wndClassEx)) { printf("RegisterClassEx failure\n"); return -1; } hInstance = wndClassEx.hInstance; hWnd = CreateWindowEx(0, wndClassEx.lpszClassName, 0, 0, 0, 0, 0, 0, HWND_MESSAGE, 0, hInstance, NULL); if (!hWnd) { printf("CreateWindowEx failure\n"); return -1; } SendMessage(hWnd, WM_CLOSE, 0, 0); DestroyWindow(hWnd); return 0; }