一段基本的win32项目示例

一段完整的win32程序示例代码：

#include<windows.h>

LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);

int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,
				PSTR szCmdLine, int iCmdShow)
{
	static TCHAR szAppName[] = TEXT("HelloWin");
	HWND hwnd;
	MSG msg;
	WNDCLASS wndclass;

	wndclass.style = CS_HREDRAW | CS_VREDRAW;
	wndclass.lpfnWndProc = WndProc;
	wndclass.cbClsExtra = 0;
	wndclass.cbWndExtra = 0;
	wndclass.hInstance = hInstance;
	wndclass.hIcon = LoadIcon(NULL, IDI_APPLICATION);
	wndclass.hCursor = LoadCursor(NULL, IDC_ARROW);
	wndclass.hbrBackground = (HBRUSH)GetStockObject(WHITE_BRUSH);
	wndclass.lpszMenuName = NULL;
	wndclass.lpszClassName = szAppName;

	if (!RegisterClass(&wndclass))
	{
		MessageBox(NULL, TEXT("注册失败!"), szAppName, MB_ICONERROR);
		return 0;
	}

	hwnd = CreateWindow(
                        szAppName,
			TEXT("The Hello Program"),
			WS_OVERLAPPEDWINDOW,
			CW_USEDEFAULT,
			CW_USEDEFAULT,
			CW_USEDEFAULT,
			CW_USEDEFAULT,
			NULL,
			NULL,
			hInstance,
			NULL
      );

      ShowWindow(hwnd, iCmdShow);
      UpdateWindow(hwnd);

      while (GetMessage(&msg, NULL, 0, 0))
      {
	TranslateMessage(&msg);
	DispatchMessage(&msg);
      }

      return msg.wParam;
}

LRESULT CALLBACK WndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
        HDC hdc;
	PAINTSTRUCT ps;
	RECT rect;

	switch (message)
	{
	case WM_PAINT:
		hdc = BeginPaint(hwnd, &ps);

		GetClientRect(hwnd, &rect);

		DrawText(hdc, TEXT("Hello Windows!"), -1, &rect, DT_SINGLELINE | DT_CENTER | DT_VCENTER);

		EndPaint(hwnd, &ps);
		return 0;
	case WM_DESTROY:
		PostQuitMessage(0);
		return 0;
	}

	return DefWindowProc(hwnd, message, wParam, lParam);
}