common dialog controls

How come when I compile this code it doesn't show the Open File dialog? The samething happens when I try to compile other peoples code including the sunlight tutorial. I'm using the free Borland C++ 5.5 compiler. When I compile this same code with the BC 4.5 compiler it shows the Open File dialog.

Code:

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/* Win32 File API example */
#include <windows.h>
#include <stdio.h>
#include <string.h>
#include "colors.h"

void readFile(void);
void getFile(void);

int main(void)
{
        getFile();
        readFile();
        getchar();
        return 0;
}
/*********************************/
void readFile(void)
{
        HANDLE hFile;
        LPSTR pszText;
        DWORD bytesRead, fileSize;
        hFile = CreateFile("file.txt", GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, NULL);
        if(hFile != INVALID_HANDLE_VALUE)
        {
                fileSize = GetFileSize(hFile,NULL);
                pszText = GlobalAlloc(GPTR, fileSize+1);
                ReadFile(hFile,pszText,strlen(pszText),&bytesRead,NULL);
                pszText[fileSize] = 0; /* add null terminator */
                CloseHandle(hFile);
                printf("bytesRead: %d\n", bytesRead);
                SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE),FGRED | BGBLUE);
                printf("%s", pszText);
                GlobalFree(pszText);
        }
}
/*********************************/
void getFile(void)
{
        HWND hwnd;
        OPENFILENAME ofn;
        char szFileName[MAX_PATH] = "";

        ZeroMemory(&ofn, sizeof(ofn));
        ofn.lStructSize = sizeof(ofn);
        ofn.hwndOwner = hwnd;
        ofn.lpstrFilter = "Text Files (*.txt)\0";
        ofn.lpstrFile = szFileName;
        ofn.nMaxFile = MAX_PATH;
        ofn.Flags = OFN_FILEMUSTEXIST | OFN_HIDEREADONLY;
        ofn.lpstrDefExt = "txt";

        if(GetOpenFileName(&ofn))
        {
          readFile();
        }
}

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I haven't checked your code but if you are using win9x/nt then you have to amend your bcc32.cfg file (bin directory of your install) by including the following two lines:

Code:

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-DWINVER=0x0400
-D_WIN32_WINNT=0x0400

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This is because bcc5.5 is setup for use on win2k by default which is unfortunately not documented in the sparse help/readme files.

Thank you. That solved the problem.