用c++应用程序编写的雪花贺卡，逢年过节送给你自己身边的亲友吧
snow.cpp
///
// Snow.cpp
// Date: 2009-2-5 21:16
// A moving ball.
//
///
#include
#include "Snow.h"
TCHAR strForWin1[] = "时间过得好快啊!";
TCHAR strForWin2[] = "开学已经十周了..." ;
TCHAR strForWin3[] = "你学的怎么样了?";
TCHAR strForWin4[] = "有问题一定要及时让我知道";
TCHAR strForWin5[] = "祝大家“小光棍节”快乐";
TCHAR strForWin6[] = " CJ Wang 2011.11.1";
const int nMaxHeight = 450;
#define ID_TIMER 1
///
int WINAPI WinMain( HINSTANCE hInst, HINSTANCE hPrevInst, char* cmdParam, int cmdShow )
{
char className[] = "Snow";
MovingBall MovingBallClass( WindowsProcedure, className, hInst );
MovingBallClass.Register();
WinMaker win( "-- Have a joy here!", className, hInst );
win.Show( cmdShow );
MSG msg;
int status;
while( ( status = ::GetMessage( & msg, NULL, 0, 0 ) ) != 0 )
{
if ( status == -1 )
return -1;
::TranslateMessage( & msg );
::DispatchMessage( & msg );
}
return msg.wParam;
}
///
MovingBall::MovingBall( WNDPROC wndProc, const char* className, HINSTANCE hInstance )
{
_class.style = 0;
_class.lpfnWndProc = wndProc; // Windows procedure: mandatory
_class.cbClsExtra = 0;
_class.cbWndExtra = 0;
_class.hInstance = hInstance;
_class.hIcon = 0; // Owner of class: mandatory
_class.hCursor = ::LoadCursor( 0, IDC_ARROW );
_class.hbrBackground = (HBRUSH) ( COLOR_WINDOW + 1 ); // Optional
_class.lpszMenuName = 0;
_class.lpszClassName = className; // Mandatory
}
WinMaker::WinMaker( const char* szCaption, const char* className, HINSTANCE hInstance )
{
DWORD dwStyle = WS_OVERLAPPEDWINDOW;
dwStyle &= ~WS_SIZEBOX;
dwStyle &= ~WS_MAXIMIZEBOX;
dwStyle &= ~WS_MINIMIZEBOX;
_hWnd = ::CreateWindow(
className, // Name of a registered window class
szCaption, // Window caption
dwStyle, // Window style
CW_USEDEFAULT, // x position
CW_USEDEFAULT, // y position
787, // width
590, // height
0, // Handle to parent window
0, // Handle to menu
hInstance, // Application instance
0 ); // Window creation data
}
/*:: -- 作用域标识符！如果是在MFC下编程的话，因为MFC封装了API函数，但是参数有的和API函数不一样，
比如MFC封装的函数一般都没有句柄这个参数，但是API函数都有，
所以在MFC编程中，如果你调用的是全局的API函数的话就要加::符号，
来通知编译器你调用的是全局的API函数，而不是MFC封装的API函数！
当然有的函数比如参数是个布尔型的，MFC封装的函数和全局的API函数的参数相同，
编译器默认的是调用MFC封装的函数，所以你加不加::作用域标识符都是一样的!!
控制台下编写的程序用的就是API函数所以没必要加::作用域标识符的。
*/
///
LRESULT CALLBACK WindowsProcedure( HWND hWnd, UINT uMessage, WPARAM wParam, LPARAM lParam )
{
static HBITMAP hbmpBkground = NULL,
hbmpSnow = NULL,
hbmpMask = NULL;
static Snow snowFlakes[ 80 ];
static int countSnow = 0;
static int cxClient, cyClient;
static int nHeightY = nMaxHeight;
COLORREF clrBk;
PAINTSTRUCT ps;
HDC hdc = NULL,
hdcMem = NULL;
HINSTANCE hInst = NULL;
switch( uMessage )
{
case WM_CREATE:
hInst = ( (LPCREATESTRUCT) lParam )->hInstance;
assert( hInst );
hbmpBkground = ::LoadBitmap( hInst, TEXT( "bground" ) );
assert( hbmpBkground );
hbmpSnow = ::LoadBitmap( hInst, TEXT( "snow" ) );
assert( hbmpSnow );
hbmpMask = ::LoadBitmap( hInst, TEXT( "mask" ) );
assert( hbmpMask );
::SetWindowPos( hWnd, HWND_TOPMOST, 0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE );
//设置定时器
::SetTimer( hWnd, ID_TIMER, 160, NULL );
return 0;
case WM_SIZE:
cxClient = LOWORD( lParam );
cyClient = HIWORD( lParam );
return 0;
case WM_PAINT:
hdc = ::BeginPaint( hWnd, & ps );
assert( hdc );
hdcMem = ::CreateCompatibleDC( hdc );
assert( hdcMem );
::SelectObject( hdcMem, hbmpBkground );
::BitBlt(
hdc,
0, 0,
cxClient, cyClient,
hdcMem,
0, 0,
SRCCOPY );
::DeleteDC( hdcMem );
::EndPaint( hWnd, & ps );
return 0;
case WM_TIMER:
::FlashWindow( hWnd, TRUE );
if ( countSnow < 80 )
{
snowFlakes[ countSnow ].xPos = rand() % cxClient;
snowFlakes[ countSnow ].yPos = 0;
snowFlakes[ countSnow ].bIsExist = TRUE;
countSnow++;
}
if ( countSnow == 80 )
countSnow = 0;
hdc = ::GetDC( hWnd );
assert( hdc );
hdcMem = ::CreateCompatibleDC( hdc );
assert( hdcMem );
::SelectObject( hdcMem, hbmpBkground );
::BitBlt(
hdc,
0, 0,
cxClient, cyClient,
hdcMem,
0, 0,
SRCCOPY );
clrBk = ::GetBkColor( hdc );
::SetTextColor( hdc, RGB( 0, 11, 255 ) );
::SetBkColor( hdc, clrBk );
::TextOut( hdc, 100, nHeightY, strForWin1, lstrlen( strForWin1 ) );
::TextOut( hdc, 100, nHeightY + 18, strForWin2, lstrlen( strForWin2 ) );
::TextOut( hdc, 100, nHeightY + 36, strForWin3, lstrlen( strForWin3 ) );
::TextOut( hdc, 100, nHeightY + 54, strForWin4, lstrlen( strForWin4 ) );
::TextOut( hdc, 100, nHeightY + 70, strForWin5, lstrlen( strForWin5 ) );
::TextOut( hdc, 100, nHeightY + 88, strForWin6, lstrlen( strForWin6 ) );
//
// The redraw area for the text
//
nHeightY -= 10;
if ( nHeightY <= -88 )
{
nHeightY = nMaxHeight;
}
int i;
for ( i = 0; i < 80; i++ )
{
if ( snowFlakes[ i ].bIsExist )
{
::SelectObject( hdcMem, hbmpMask );
::BitBlt(
hdc,
snowFlakes[ i ].xPos, snowFlakes[ i ].yPos,
20, 20,
hdcMem,
0, 0,
SRCAND );
::SelectObject( hdcMem, hbmpSnow );
::BitBlt(
hdc,
snowFlakes[ i ].xPos, snowFlakes[ i ].yPos,
20, 20,
hdcMem,
0, 0,
SRCPAINT );
if ( rand() % 2 == 0 )
snowFlakes[ i ].xPos += 3;
else
snowFlakes[ i ].xPos -= 3;
snowFlakes[ i ].yPos += 10;
if ( snowFlakes[ i ].yPos > cyClient )
{
snowFlakes[ i ].xPos = rand() % cxClient;
snowFlakes[ i ].yPos = 0;
}
}
}
::ReleaseDC( hWnd, hdc );
::DeleteDC( hdcMem );
return 0;
case WM_DESTROY:
::DeleteObject( hbmpBkground );
::DeleteObject( hbmpSnow );
::DeleteObject( hbmpMask );
::KillTimer( hWnd, ID_TIMER );
::PostQuitMessage( 0 );
return 0;
}
return ::DefWindowProc( hWnd, uMessage, wParam, lParam );
}
源码下载：贺卡程序
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