Flow Font, transparent window.悬浮文字，透明窗口

FlowFont

#include "Windows.h"

#define ID_TIMER_MOVE 1

int i, j;

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

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

	wndclass.cbClsExtra				= 0;
	wndclass.cbWndExtra				= 0;
	wndclass.hbrBackground			= CreateSolidBrush(RGB(19, 32, 23));
	wndclass.hCursor				= LoadCursor(NULL, IDC_ARROW);
	wndclass.hIcon					= LoadIcon(NULL, IDI_APPLICATION);
	wndclass.hInstance				= hInstance;
	wndclass.lpfnWndProc			= WndProc;
	wndclass.lpszClassName			= szName;
	wndclass.lpszMenuName			= NULL;
	wndclass.style					= CS_HREDRAW | CS_VREDRAW;

	if(!RegisterClass(&wndclass))
	{
		MessageBox(NULL, TEXT("This program requires Windows NT!"),
			szName, MB_ICONERROR);
		return 0;
	}

	int cx = GetSystemMetrics(SM_CXSCREEN);
	int cy = GetSystemMetrics(SM_CYSCREEN);

	i = cx/2 - 100;
	j = cy/2 - 100;

	hwnd = CreateWindow(szName,
		TEXT("Demo"),
		WS_POPUPWINDOW,
		i,
		j,
		200,
		200,
		NULL,
		NULL,
		hInstance,
		NULL);

	ShowWindow(hwnd, TRUE);
	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)
{
	static HRGN		hRgn;
	static HBITMAP	hBmp;
	BITMAP			bmp;
	static HDC		hdc, hdcMem;
	static HRGN		hRgnWnd = CreateRectRgn(0, 0, 800, 600);
	static HFONT	hFont = CreateFont(50, 20, 0, 0, FW_NORMAL, FALSE, FALSE, 0, ANSI_CHARSET, 
		OUT_DEFAULT_PRECIS, 
		CLIP_DEFAULT_PRECIS,
		DEFAULT_QUALITY,
		DEFAULT_PITCH | FF_SWISS,
		L"myFont");
	static HFONT	hOldFont;
	static int		nOldMode;
	static int		cxBmp, cyBmp;
	PAINTSTRUCT		ps;

	switch(message)
	{
	case WM_CREATE:
		SetTimer(hwnd, ID_TIMER_MOVE, 20, NULL);
		hBmp = LoadBitmap(((LPCREATESTRUCT)lParam)->hInstance, MAKEINTRESOURCE(101));
		GetObject(hBmp, sizeof(BITMAP), &bmp);
		cxBmp = bmp.bmWidth;
		cyBmp = bmp.bmHeight;
		return 0;

	case WM_PAINT:

		hdc = BeginPaint(hwnd, &ps);
		BeginPath(hdc);
		nOldMode = SetBkMode(hdc, TRANSPARENT);
		hOldFont = (HFONT)SelectObject(hdc, hFont);
		TextOut(hdc, 0, 0, TEXT("圣诞快乐！"), wcslen(L"圣诞快乐！"));
		SelectObject(hdc, hOldFont);
		EndPath(hdc);
		hRgn = PathToRegion(hdc);
		SetWindowRgn(hwnd, hRgn, TRUE);
		SetBkMode(hdc, nOldMode);
		EndPaint(hwnd, &ps);

		return 0;

	case WM_TIMER:
		{
			int xScreen = GetSystemMetrics(SM_CXSCREEN);
			RECT rcWnd;
			GetWindowRect(hwnd, &rcWnd);
			i -= 2;
			if(i < rcWnd.left - rcWnd.right) 
				i = xScreen;
			MoveWindow(hwnd, i, j, rcWnd.right - rcWnd.left, rcWnd.bottom - rcWnd.top, TRUE);
		}
		return 0;

	case WM_DESTROY:
		KillTimer(hwnd, ID_TIMER_MOVE);
		PostQuitMessage(0);
		return 0;
	}

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

//浮动的时钟

include <Windows.h>

include <time.h>

define ID_TIMER_CLOCK (WM_USER + 1)

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

int WINAPI WinMain( HINSTANCE hInstance,
HINSTANCE hPrevInstance,
LPSTR szCmdLine,
int iCmdShow)
{
Sleep(10000);
WNDCLASS wndclass;
MSG msg;
HWND hwnd;
static TCHAR szAppName[] = TEXT("NewYearClock");

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

if(!RegisterClass(&wndclass))
{
    MessageBox(NULL, TEXT("This program requires Windows NT!"),
        szAppName, MB_ICONERROR);
    return 0;
}

int cx = GetSystemMetrics(SM_CXSCREEN);
int cy = GetSystemMetrics(SM_CYSCREEN);

hwnd = CreateWindow(szAppName,
    TEXT("NewYearClock"),
    WS_POPUPWINDOW,
    cx -620,
    cy - 400,
    200,
    100,
    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)
{
static HRGN hRgn = CreateRectRgn(0, 0, 200, 100);;
static HDC hdc;
static int nOldMode;
static HFONT hFont = CreateFont(25, 10, 0, 0, FW_NORMAL, FALSE, FALSE, 0, ANSI_CHARSET,
OUT_DEFAULT_PRECIS,
CLIP_DEFAULT_PRECIS,
DEFAULT_QUALITY,
DEFAULT_PITCH | FF_SWISS,
L"myFont");
static HFONT hOldFont;
PAINTSTRUCT ps;

switch(message)
{

case WM_CREATE:
    SetTimer(hwnd, ID_TIMER_CLOCK, 10, NULL);
    SelectObject(hdc, hFont);
    ::SetWindowPos(hwnd, HWND_TOPMOST, 0, 0, 0, 0,
        SWP_NOMOVE | SWP_NOSIZE | SWP_NOACTIVATE);  //窗口置顶
    return 0;
case WM_PAINT:
    {
        hdc = BeginPaint(hwnd, &ps);
        BeginPath(hdc);
        nOldMode = SetBkMode(hdc, TRANSPARENT);
        hOldFont = (HFONT)SelectObject(hdc, hFont);
        struct tm *newtime;
        char tmpbuf[128];
        time_t lt;
        time(&lt);
        newtime = localtime(&lt);
        strftime(tmpbuf, 128, "%H:%M:%S", newtime);
        TextOutA(hdc, 2, 0, tmpbuf, strlen(tmpbuf));
        SelectObject(hdc, hOldFont);
        EndPath(hdc);
        hRgn = PathToRegion(hdc);
        SetWindowRgn(hwnd, hRgn, TRUE);
        SetBkMode(hdc, nOldMode);
        EndPaint(hwnd, &ps);
    }
    return 0;

case WM_TIMER:
    InvalidateRect(hwnd, NULL, TRUE);
    return 0;

case WM_DESTROY:
    KillTimer(hwnd, ID_TIMER_CLOCK);
    PostQuitMessage(0);
    return 0;
}

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

}