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//
// 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 ) { TCHAR PathName[MAX_PATH]; LPITEMIDLIST lpid;
UNREFERENCED_PARAMETER(lpData);
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, PathName) && (SUCCEEDED(StringCchCopy(g_szBrowsePath, cA(g_szBrowsePath), PathName)))) { SendMessage(hwnd, BFFM_ENABLEOK, (WPARAM) 0, (LPARAM) 1); } break; }
return 0; }
//
// 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, DWORD BufCchSize) {
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) || FAILED(StringCchCopy(g_szBrowsePath, cA(g_szBrowsePath), lpszBuf))) { MyGetWindowsDirectory(g_szBrowsePath, cA(g_szBrowsePath)); }
//
// 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, cA(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!
//
return (SUCCEEDED(StringCchCopy(lpszBuf, BufCchSize, g_szBrowsePath))); }
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