Question

嵌入循环的代码构建并运行良好。尝试使用它构建它（MBCS中的VS10）在LinkEmbedManifest步骤失败，并出现link 1168错误。

    WIN32_FIND_DATA da;   // directory data
    TCHAR *Path;    // directory Pointer
    HANDLE ds;     // directory handle  
    int Listindex=0;
    Path = "C:\\";
    SetCurrentDirectory(Path);     
    Listindex=0
    ds = FindFirstFile(TEXT("*"),&da);
        do       {
            int index = SendDlgItemMessage(hwnd, IDC_LIST, LB_ADDSTRING, (WPARAM)Listindex, (LPARAM)&da);

            SendDlgItemMessage(hwnd, IDC_LIST, LB_SETITEMDATA, (WPARAM)index, (LPARAM)Listindex);
            Listindex+=1;
            } 
            while( FindNextFile(ds,&da) != ERROR_NO_MORE_ITEMS);


    FindClose(ds);

目的是列出C根中的目录。从LONG_PTR LRESULT隐式转换为带索引的int，并进一步使用LPARAM和WPARAM进行转换。如果用模块范围的decs替换它们会有什么不同吗？或者改变循环的类型会更好吗？

Answer 1

FWIW问题有这么多错误，难怪它被标记下来了。最大的问题是在整个da记录上测试ERROR_NO_MORE_ITEMS而不是da.cFileName，因此是无限循环：。

#include <windows.h>
#include <winnt.h>
#include "resource.h" //Listbox data

WIN32_FIND_DATA da;   // directory data this will use stack memory as opposed to LPWIN32_FIND_DATA
TCHAR *driveIDptr;  
char driveID;
HANDLE ds;     // directory handle

BOOL CALLBACK DlgProc(HWND hwnd, UINT Msg, WPARAM wParam, LPARAM lParam)
{
switch(Msg)
{
        case WM_INITDIALOG:

{       
    int listindex = 0;

    //Populate List
    driveIDptr = "C:\\*";
    memset(&da, 0, sizeof(WIN32_FIND_DATA));

    ds = FindFirstFile(driveIDptr, &da);
    driveIDptr = "C:\\"; //Shocking, but costs less than a strcat in above find function

    if (ds == INVALID_HANDLE_VALUE)
    {
     StringCchPrintf (pszDest, cbDest, TEXT("No directories found."));
    return FALSE;
    }

    while (ds != INVALID_HANDLE_VALUE && ds)
    {

        if (FindNextFile(ds, &da) == FALSE) break;

    if((da.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) && !(da.dwFileAttributes & FILE_ATTRIBUTE_SYSTEM
|| da.dwFileAttributes & FILE_ATTRIBUTE_REPARSE_POINT || da.dwFileAttributes & FILE_ATTRIBUTE_ARCHIVE || da.dwFileAttributes & FILE_ATTRIBUTE_HIDDEN )) {

    strcpy (&driveID, (char *) driveIDptr);
    strcat (&driveID,  da.cFileName);
    SendDlgItemMessage(hwnd, IDC_LIST, LB_ADDSTRING, (WPARAM)listindex, (LPARAM)&driveID);

        SendDlgItemMessage(hwnd, IDC_LIST, LB_SETITEMDATA, (WPARAM)listindex, (LPARAM)listindex);
        listindex+=1;
    }

    } 
        FindClose(ds);

        //other Msg cases...

这个循环出了什么问题？

1 个答案: