HELLOWIN程式---HELLOWIN.C

#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("This program requires Windows NT!"), 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);

}

system("pause");

return msg.wParam;

}

LRESULT CALLBACK WndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)

{

HDC hdc;

PAINTSTRUCT ps;

RECT rect;

switch (message)

{

case WM_CREATE:

PlaySound(TEXT("hellowin.wav"), NULL, SND_FILENAME | SND_ASYNC);

return 0;

case WM_PAINT:

hdc = BeginPaint(hwnd, &ps);

GetClientRect(hwnd, &rect);

DrawText(hdc, TEXT("Hello,Windows 98"), -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);

}