100分求一锁屏程序，像屏保设了密码一样，没有密码就什么都不能做

[hongyan80]

我要的源代码或制方法，越详细越好！我是新手！

[蒋晟]

在NT中用LockWorkStation函数
9x下启动一个自己写的屏保就可以了

[COOL099]

一個示例.
BOOL WINAPI RegisterDialogClasses(HANDLE);
LRESULT CALLBACK ScreenSaverProc(HWND,UINT,WPARAM,LPARAM);
//BOOL CALLBACK ScreenSaveConfigureDialog(HWND,UINT,WPARAM,LPARAM);
//定?三?基本的函?
char szIniFileName[]="control.ini";
//屏幕保?程序配置?据存放在control.ini文件
char szSection[]="Scroll Screen Saver";
//屏幕保?程序配置?据在control.ini文件位置?名?
char szEntry[255];
char szValue[255];
int cbSize=255;
typedef struct tagCONFIGDATA
{
int iFrequency;
int iDirection;
bool bShake;
int iPageDelay;
}CONFIGDATA,*LPCONFIGDATA;

//屏幕保?程序配置?据?名?
LRESULT CALLBACK ScreenSaverProc(HWND hWnd, UINT message, WPARAM wParam,
LPARAM lParam)
{ HDC hDC;
static int xpos;//文本的?坐?
static HDC hdcMem,hdcTmp;
static HBITMAP bmp,bm;
static float iStep;
static LPCONFIGDATA cfgd;
static UINT timerID;//定?器
static int iWidth,iHeight;
iHeight=GetSystemMetrics(SM_CYFULLSCREEN);
iWidth=GetSystemMetrics(SM_CXFULLSCREEN);
switch (message)
{
case WM_CREATE:
cfgd=(LPCONFIGDATA)GlobalAlloc(GPTR,sizeof(CONFIGDATA));
//memset(cfgd,0,sizeof(CONFIGDATA));
GetPrivateProfileString(szSection,"Frequency","25",szValue,cbSize,szIniFileName);
cfgd->iFrequency=atoi(szValue);
GetPrivateProfileString(szSection,"FrameDelay","500",szValue,cbSize,szIniFileName);
cfgd->iPageDelay =atoi(szValue);
GetPrivateProfileString(szSection,"Shake","0",szValue,cbSize,szIniFileName);
cfgd->bShake=strcmp(szValue,"0")?false:true;
GetPrivateProfileString(szSection,"Direction","0",szValue,cbSize,szIniFileName);
cfgd->iDirection=atoi(szValue);
if (cfgd->iDirection==1)
xpos=iHeight;
else
xpos=0;
hDC=GetDC(hWnd);
hdcMem =CreateCompatibleDC(hDC);
bmp=CreateCompatibleBitmap(hDC,iWidth,iHeight);
//bmp=LoadBitmap(hMainInstance,MAKEINTRESOURCE(IDB_BITMAP1));
SelectObject(hdcMem,bmp);
hdcTmp =CreateCompatibleDC(hDC);
bm=CreateCompatibleBitmap(hDC,iWidth,iHeight);
//bmp=LoadBitmap(hMainInstance,MAKEINTRESOURCE(IDB_BITMAP1));
SelectObject(hdcTmp,bm);
BitBlt(hdcMem,0,0,iWidth,iWidth,hDC,0,0,SRCCOPY);
ReleaseDC(hWnd,hDC);
iStep=0.2;
timerID=SetTimer(hWnd,1,1000/cfgd->iFrequency,NULL);//?置定?器
break;

case WM_ERASEBKGND:
//空操作，交由DefScreenSaverProc?理
break;
case WM_TIMER:
//清屏

hDC=GetDC(hWnd);
//移?文本的?坐?
if (cfgd->iDirection==1)
{
xpos-=iStep;
if (xpos<0)
{
xpos=iHeight;
iStep=0;
Sleep(cfgd->iPageDelay);
}
}
else
{
xpos+=iStep;
if (xpos>iHeight)
{
xpos=0;
iStep=0;
Sleep(cfgd->iPageDelay);
}
}
iStep+=1;
BitBlt(hdcTmp,0,0,iWidth,xpos,hdcMem,0,iHeight-xpos,SRCCOPY);
BitBlt(hdcTmp,0,xpos,iWidth,iHeight-xpos,hdcMem,0,0,SRCCOPY);
BitBlt(hDC,0,0,iWidth,iHeight,hdcTmp,0,0,SRCCOPY);
ReleaseDC(hWnd,hDC);
break;

case WM_DESTROY:
GlobalFree(cfgd);
KillTimer(hWnd,timerID);//?除定?器
DeleteObject(bmp);
DeleteDC(hdcMem);
DeleteObject(bm);
DeleteDC(hdcTmp);
PostQuitMessage (0);
return 0;
}
return DefScreenSaverProc(hWnd,message,wParam,lParam);
}

BOOL WINAPI ScreenSaverConfigureDialog
(HWND hWnd,UINT message,WPARAM wParam,
LPARAM lParam)
{//??不需要配置??框，?返回FALSE
HWND hwndItem;
int ret;
switch(message)
{
case WM_INITDIALOG:
GetPrivateProfileString(szSection,"Frequency","25",szValue,cbSize,szIniFileName);
hwndItem=GetDlgItem(hWnd,IDC_EDIT1);
SetWindowText(hwndItem,szValue);
GetPrivateProfileString(szSection,"FrameDelay","500",szValue,cbSize,szIniFileName);
hwndItem=GetDlgItem(hWnd,IDC_EDIT2);
SetWindowText(hwndItem,szValue);
GetPrivateProfileString(szSection,"Shake","0",szValue,cbSize,szIniFileName);
hwndItem=GetDlgItem(hWnd,IDC_CHECK1);
SendMessage(hwndItem,BM_SETCHECK,(WPARAM)atoi(szValue),0);
GetPrivateProfileString(szSection,"Direction","0",szValue,cbSize,szIniFileName);
hwndItem=GetDlgItem(hWnd,strcmp(szValue,"0")==0?IDC_RADIO1:IDC_RADIO2);
SendMessage(hwndItem,BM_SETCHECK,(WPARAM)1,0);
return true;
case WM_COMMAND:
switch(wParam)
{
case IDOK:
hwndItem=GetDlgItem(hWnd,IDC_EDIT1);
GetWindowText(hwndItem,szValue,cbSize);
WritePrivateProfileString(szSection,"Frequency",szValue,szIniFileName);
hwndItem=GetDlgItem(hWnd,IDC_EDIT2);
GetWindowText(hwndItem,szValue,cbSize);
WritePrivateProfileString(szSection,"FrameDelay",szValue,szIniFileName);
hwndItem=GetDlgItem(hWnd,IDC_CHECK1);
ret=SendMessage(hwndItem,BM_GETCHECK,0,0);
itoa(ret==BST_CHECKED?1:0,szValue,10);
//GetWindowText(hwndItem,szValue,cbSize);
WritePrivateProfileString(szSection,"Shake",szValue,szIniFileName);
hwndItem=GetDlgItem(hWnd,IDC_RADIO1);
ret=SendMessage(hwndItem,BM_GETCHECK,0,0);
itoa(ret==BST_CHECKED?0:1,szValue,10);
//GetWindowText(hwndItem,szValue,cbSize);
WritePrivateProfileString(szSection,"Direction",szValue,szIniFileName);
EndDialog(hWnd,true);
return true;
case IDCANCEL:
EndDialog(hWnd,false);
break;
}
}
return FALSE;
}

BOOL WINAPI RegisterDialogClasses
(HANDLE hInstance)
{//一般不需要，?返回TRUE
return TRUE;
}

[StarNCraft]

我认为使用一个HOOK比较好,将所有键盘,鼠标消息结获并Kill掉!这样不用使用屏保,让别人只能看并屏幕发呆!

[gieroland]

StarNCraft(权) ，帅哥，那怎么切回来?

[hongyan80]

能不能简单点，我的程序不需要配置，只要放一张图片盖住整个屏幕就可以了。还有一个就是有设密码，没有密码就不什么都不能做。密码是我自己的程序设的。

[hongyan80]

我做了一模式对话框，不输密码就该应用程序的界面就锁定了。可是一按ESC键，该模式对话框消失了。我重写了OnCancel函数，可为什么没有被调用呢？

[abrams]

FARPROC lock;
HMODULE hm;
hm=NULL;
hm=::LoadLibrary("user32.dll");
if(hm!=NULL)
{
lock = GetProcAddress(hm,"LockWorkStation");
lock();
}
::FreeLibrary(hm);
CloseHandle(hm);