Displaying 'Browse Folders' dialog with the default folder selected -优快云博客

本文链接：https://blog.youkuaiyun.com/iiprogram/article/details/2456706

The 'Browse For Folder' dialog allows the user to select a folder from all available local drives and network resources.
The following code snippet demonstrate how to display this dialog-box. The BrowseFolders function accept 3 parameters:
hwnd - The handle of the parent window
lpszFolder - Address of a buffer to receive the selected folder. Before calling this function, you should fill this buffer with the folder that you want to be selected when the dialog-box is loaded at first.
lpszTitle - The text that should be displayed as a title of the 'Browse Folders' dialog-box

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#include <windows.h>
#include <shlobj.h>

int CALLBACK BrowseForFolderCallback(HWND hwnd,UINT uMsg,LPARAM lp, LPARAM pData)
{
	char szPath[MAX_PATH];

	switch(uMsg)
	{
		case BFFM_INITIALIZED:
			SendMessage(hwnd, BFFM_SETSELECTION, TRUE, pData);
			break;

		case BFFM_SELCHANGED: 
			if (SHGetPathFromIDList((LPITEMIDLIST) lp ,szPath)) 
			{
				SendMessage(hwnd, BFFM_SETSTATUSTEXT,0,(LPARAM)szPath);	

			}
			break;
	}

	return 0;
}

BOOL BrowseFolders(HWND hwnd, LPSTR lpszFolder, LPSTR lpszTitle)
{
	BROWSEINFO bi;
	char szPath[MAX_PATH + 1];
	LPITEMIDLIST pidl;
	BOOL bResult = FALSE;

	LPMALLOC pMalloc;

    if (SUCCEEDED(SHGetMalloc(&pMalloc))) 
	{
		bi.hwndOwner = hwnd;
		bi.pidlRoot = NULL;
		bi.pszDisplayName = NULL;
		bi.lpszTitle = lpszTitle;
		bi.ulFlags = BIF_STATUSTEXT; //BIF_EDITBOX 
		bi.lpfn = BrowseForFolderCallback;
		bi.lParam = (LPARAM)lpszFolder;
		
		pidl = SHBrowseForFolder(&bi);
		if (pidl)
		{
			if (SHGetPathFromIDList(pidl,szPath)) 
			{
				bResult = TRUE;
				strcpy(lpszFolder, szPath);
			}

		   pMalloc->Free(pidl);
		   pMalloc->Release();
            			
		}
	}

	return bResult;
	
}