Source code of Windows XP (NT5)
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115 lines
3.0 KiB

//
// Browse.C
//
#include "sigverif.h"
// Global browse buffer that is used until user click OK or Cancel
TCHAR g_szBrowsePath[MAX_PATH];
//
// This callback function handles the initialization of the browse dialog and when
// the user changes the selection in the tree-view. We want to keep updating the
// g_szBrowsePath buffer with selection changes until the user clicks OK.
//
int CALLBACK BrowseCallbackProc(
HWND hwnd,
UINT uMsg,
LPARAM lParam,
LPARAM lpData
)
{
int iRet = 0;
TCHAR PathName[MAX_PATH];
LPTSTR lpPathName = PathName;
LPITEMIDLIST lpid;
switch (uMsg) {
case BFFM_INITIALIZED:
//
// Initialize the dialog with the OK button and g_szBrowsePath
//
SendMessage(hwnd, BFFM_ENABLEOK, (WPARAM) 0, (LPARAM) 1);
SendMessage(hwnd, BFFM_SETSELECTION, (WPARAM) TRUE, (LPARAM) g_szBrowsePath);
break;
case BFFM_SELCHANGED:
lpid = (LPITEMIDLIST) lParam;
if (SHGetPathFromIDList(lpid, lpPathName)) {
//
// If the path is good, then update g_szBrowsePath
//
lstrcpy(g_szBrowsePath, lpPathName);
}
SendMessage(hwnd, BFFM_ENABLEOK, (WPARAM) 0, (LPARAM) 1);
break;
}
return iRet;
}
//
// This uses SHBrowseForFolder to get the directory the user wants to search.
// We specify a callback function that updates g_szBrowsePath until the user clicks OK or Cancel.
// If they clicked OK, then we update the string passed in to us as lpszBuf.
//
//
BOOL BrowseForFolder(HWND hwnd, LPTSTR lpszBuf) {
BROWSEINFO bi;
TCHAR szBuffer[MAX_PATH],
szMessage[MAX_PATH];
LPITEMIDLIST lpid;
//
// Check if the lpszBuf path is valid, if so use that as the browse dialog's initial directory.
// If it isn't valid, initialize g_szBrowsePath with the Windows directory.
//
if (!SetCurrentDirectory(lpszBuf)) {
MyGetWindowsDirectory(g_szBrowsePath, MAX_PATH);
} else {
lstrcpy(g_szBrowsePath, lpszBuf);
}
//
// Start the root of the browse dialog in the CSIDL_DRIVES namespace
//
if (!SUCCEEDED(SHGetSpecialFolderLocation(hwnd, CSIDL_DRIVES, &lpid))) {
return FALSE;
}
//
// This loads in the "Please select a directory" text into the dialog.
//
MyLoadString(szMessage, IDS_SELECTDIR);
//
// Setup the BrowseInfo struct.
//
bi.hwndOwner = hwnd;
bi.pidlRoot = lpid;
bi.pszDisplayName = szBuffer;
bi.lpszTitle = szMessage;
bi.ulFlags = BIF_RETURNONLYFSDIRS;
bi.lpfn = (BFFCALLBACK) BrowseCallbackProc;
bi.lParam = 0x123;
if (SHBrowseForFolder(&bi) == NULL) {
return FALSE;
}
//
// The user must have clicked OK, so we can update lpszBuf with g_szBrowsePath!
//
lstrcpy(lpszBuf, g_szBrowsePath);
return TRUE;
}