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简介1. 如何激活当前屏幕保护程序
// 激活当前屏幕保护程序, jingzhou xu
PostMessage(WM_SYSCOMMAND,SC_SCREENSAVE,0);
2. 如何禁止/启用屏幕保护及电源管理
static UINT dss_GetList[] = \{SPI_GETLOWPOWERTIMEOUT,
SPI_GETPOWEROFFTIMEOUT, SPI_GETSCREENSAVETIMEOUT};
static UINT dss_SetList[] = \{SPI_SETLOWPOWERTIMEOUT,
SPI_SETPOWEROFFTIMEOUT, SPI_SETSCREENSAVETIMEOUT};
static const int dss_ListCount = _countof(dss_GetList);
 禁止屏幕保护及电源管理
\{
m_pValue = new int[dss_ListCount];
for (int x=0;x<dss_ListCount;x++)
\{
// 禁止屏幕保护及电源管理
VERIFY(SystemParametersInfo (dss_SetList[x], 0, NULL, 0));
}
delete[] m_pValue;
}
&#61548; 启用屏幕保护及电源管理
\{
m_pValue = new int[dss_ListCount];
for (int x=0;x<dss_ListCount;x++)
\{
//启用屏幕保护及电源管理
VERIFY(SystemParametersInfo (dss_SetList[x], m_pValue[x],
NULL, 0));
}
delete[] m_pValue;
}
3. 如何激活和关闭IE浏览器
//激活并打开IE
void lounchIE()
\{
HWND h=FindWindowEx(NULL,NULL,NULL,
"Microsoft Internet Explorer") ;
ShellExecute(h,"open","C:\simple.html",
NULL,NULL,SW_SHOWNORMAL);
}
//关闭IE及其它应用
void CloseIE()
\{
int app=BSM_APPLICATIONS;
unsigned long bsm_app=(unsigned long )app;
BroadcastSystemMessage(BSF_POSTMESSAGE,&bsm_app,
WM_CLOSE,NULL,NULL);
}
4. 如何给树控件加入工具提示
首先给树控件加入TVS_INFOTIP属性风格，如下所示：
if (!m_ctrlTree.Create(WS_CHILD|WS_VISIBLE|
TVS_HASLINES|TVS_HASBUTTONS|TVS_LINESATROOT|TVS_SHOWSELALWAYS|TVS_INFOTIP,
//加入提示TVS_INFOTIP，jingzhou xu(树控件ID:100)
CRect(0, 0, 0, 0), &m_wndTreeBar, 100))
\{
TRACE0("Failed to create instant bar child
");
return -1;
}
其次加入映射消息声明，如下所示:
afx_msg void OnGetInfoTip(NMHDR* pNMHDR,LRESULT* pResult);
//树控件上加入提示消息，jingzhou xu
ON_NOTIFY(TVN_GETINFOTIP, 100, OnGetInfoTip)
//树控件条目上加入提示，jingzhou xu
最后加入呼应涵数处理：
void CCreateTreeDlg::OnGetInfoTip(NMHDR* pNMHDR,
LRESULT* pResult)
\{
*pResult = 0;
NMTVGETINFOTIP* pTVTipInfo = (NMTVGETINFOTIP*)pNMHDR;
LPARAM itemData = (DWORD) pTVTipInfo->lParam;
//对应每个条目的数据
HTREEITEM hItem = pTVTipInfo->hItem;
CString tip;
HTREEITEM hRootItem = m_chassisTree.GetRootItem();
if (hRootItem != pTVTipInfo->hItem)
\{
tip = "树结点的提示";
}
else
\{
tip = "树根上的提示";
}
strcpy(pTVTipInfo->pszText, (LPCTSTR) tip);
}
5. 如何获取系统信息框的路径
#include <atlbase.h>
#define IDS_REG_KEY_MSINFO_PATH1 _T(
"Software\Microsoft\Shared Tools\MSInfo" )
#define IDS_REG_KEY_MSINFO_PATH2 _T(
"Software\Microsoft\Shared Tools Location" )
#define IDS_REG_VAL_MSINFO_PATH1 _T( " ath" )
#define IDS_REG_VAL_MSINFO_PATH2 _T( "MSInfo" )
#define IDS_MSINFO_EXE_NAME _T( "MSInfo32.exe" )
//...
BOOL GetSysInfoPath( CString& strPath )
\{
strPath.Empty();
LPTSTR pszPath = strPath.GetBuffer( MAX_PATH );
CRegKey reg;
DWORD dwSize = MAX_PATH;
LONG nRet = reg.Open( HKEY_LOCAL_MACHINE,
IDS_REG_KEY_MSINFO_PATH1, KEY_READ );
// 在注册表中寻找第一个"MSInfo32.exe" 位置
if ( nRet == ERROR_SUCCESS )
\{
#if ( _MFC_VER >= 0x0700 )
nRet = reg.QueryStringValue( IDS_REG_VAL_MSINFO_PATH1,
pszPath, &dwSize );
#else
nRet = reg.QueryValue( pszPath, IDS_REG_VAL_MSINFO_PATH1,
&dwSize );
#endif
reg.Close();
}
// 如果第一次寻找失败，则进行第二次寻找
if ( nRet != ERROR_SUCCESS )
\{
nRet = reg.Open( HKEY_LOCAL_MACHINE, IDS_REG_KEY_MSINFO_PATH2,
KEY_READ );
if ( nRet == ERROR_SUCCESS )
\{
#if ( _MFC_VER >= 0x0700 )
reg.QueryStringValue( IDS_REG_VAL_MSINFO_PATH2, pszPath,
&dwSize );
#else
reg.QueryValue( pszPath, IDS_REG_VAL_MSINFO_PATH2, &dwSize );
#endif
// 路径名不包括EXE文件名
if ( nRet == ERROR_SUCCESS )
VERIFY( : athAppend( pszPath, IDS_MSINFO_EXE_NAME ) );
reg.Close();
}
}
strPath.ReleaseBuffer();
strPath.FreeExtra();
// 检查文件是否有效.
return ::PathFileExists( strPath );
}
6. 如何直接运行一个资源中的程序
bool Run()
\{
CFile f;
char* pFileName = "Execution.exe";
if( !f.Open( pFileName, CFile::modeCreate | CFile::modeWrite,
NULL ) )
\{
AfxMessageBox("Can not create file!");
return 0;
}
CString path = f.GetFilePath();
HGLOBAL hRes;
HRSRC hResInfo;
//获取应用实例
HINSTANCE insApp = AfxGetInstanceHandle();
//寻找EXE资源名
hResInfo = FindResource(insApp,(LPCSTR)IDR_EXE4,"EXE");
hRes = LoadResource(insApp,hResInfo ); // Load it
DWORD dFileLength = SizeofResource( insApp, hResInfo );
//计算EXE文件大小
f.WriteHuge((LPSTR)hRes,dFileLength); //写入临时文件
f.Close();
HINSTANCE HINSsd = ShellExecute(NULL, "open",path, NULL, NULL,
SW_SHOWNORMAL);> //运行它.
return 1;
}
7. 如何遍历整个目录
#include <windows.h>
#include <shlobj.h>
//浏览目录.
void BrowseFolder( void )
\{
TCHAR path[MAX_PATH];
BROWSEINFO bi = \{ 0 };
bi.lpszTitle = ("递归调用所有目录");
LPITEMIDLIST pidl = SHBrowseForFolder ( &bi );
if ( pidl != 0 )
\{
// 获取目录路径
SHGetPathFromIDList ( pidl, path );
//设置为当前路径
SetCurrentDirectory ( path );
//搜索所有子目录
SearchFolder( path );
// 释放内存
IMalloc * imalloc = 0;
if ( SUCCEEDED( SHGetMalloc ( &imalloc )) )
\{
imalloc->Free ( pidl );
imalloc->Release ( );
}
}
//搜索其下所有子目录及文件.
void SearchFolder( TCHAR * path )
\{
WIN32_FIND_DATA FindFileData;
HANDLE hFind;
TCHAR filename[ MAX_PATH + 256 ];
TCHAR pathbak[ MAX_PATH ];
//复制初始用户选择目录
strcpy( pathbak, path );
//寻找第一个文件
hFind = FindFirstFile ( "*.*", &FindFileData );
//搜索所有文件及子目录
do
\{
if ( hFind != INVALID_HANDLE_VALUE )
\{
//如果是当前目录或父目录，跳过
if ( ! ( strcmp( FindFileData.cFileName, "." ) ) || ! (
strcmp( FindFileData.cFileName, ".." ) ) )
\{
continue;
}
//恢复初始用户选择目录
strcpy( path, pathbak );
//列出所有发现的文件
sprintf( path, "%s\%s", path, FindFileData.cFileName );
//如果 SetCurrentDirectory 成功的话，则它是一个目录，递归调用继续搜索子目录
if ( ( SetCurrentDirectory( path ) ) )
\{
SearchFolder( path );
}
//插入文件及路径名到列表框m_listbox_hwnd中
SendMessage( m_listbox_hwnd, LB_ADDSTRING, 0, path );
//<--INSERT WHAT YOU WANT DONE HERE!
}
}
while ( FindNextFile ( hFind, &FindFileData ) && hFind !=
INVALID_HANDLE_VALUE );
FindClose ( hFind );
}
8. 如何禁止/启用系统热键
bool bOld;
&#61548; 禁止系统热键
//屏蔽掉系统键
SystemParametersInfo(SPI_SETSCREENSAVERRUNNING,true,&bOld,SPIF_UPDATEINIFILE);
&#61548; 启用系统热键
//恢复系统热键
SystemParametersInfo(SPI_SETSCREENSAVERRUNNING,false,&bOld,SPIF_UPDATEINIFILE);
9. 如何隐藏/显示WINDOWS系统任务栏
&#61548; 隐藏系统任务栏
//隐藏WINDOWS系统任务栏
::ShowWindow (::FindWindow("Shell_TrayWnd",NULL),SW_HIDE);
&#61548; 显示系统任务栏
//恢复WINDOWS系统任务栏正常显示
::ShowWindow (::FindWindow("Shell_TrayWnd",NULL),SW_SHOW);
10. 如何实现窗口到系统区图标11. 间的动画效果 |
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发表于 2005-4-30 18:55:00