C++, windowsohjelmointi ja tiedoston avaus-boxi

http://msdn.microsoft.com/msdnmag/issues/0800/c/default.aspx

http://www.codeguru.com/dialog/bitmap_preview_dialog.shtml

tai sitten

CFileExportDialog dialog("Save As Type", // title
"Windows Bitmap (*.bmp)|JPEG Compressed Image (*.jpg)|" // filter string..
"Windows Meta File (*.wmf)|Windows Enhanced Meta File (*.emf)", // with file types
"visualization.jpg"); // default filename (may be omitted)

if (dialog.DoModal() == IDOK) {
CString filename = dialog.GetPathName();
int filetype = dialog.GetFilterIndex();
SaveFile(filename, filetype); // defined somewhere in the application
}

Koodi on alla. Kannattaa ladata Microsoft Platform SDK (löytyy osoitteesta http://www.microsoft.com/msdownload/platformsdk/sdkupdate/ ,josta löytyy alla oleva esimerkki.

Toivottavasti tästä oli apua.


OPENFILENAME ofn; // common dialog box structure
char szFile[260]; // buffer for file name
HWND hwnd; // owner window
HANDLE hf; // file handle

// Initialize OPENFILENAME
ZeroMemory(&ofn, sizeof(ofn));
ofn.lStructSize = sizeof(ofn);
ofn.hwndOwner = hwnd;
ofn.lpstrFile = szFile;
//
// Set lpstrFile[0] to '' so that GetOpenFileName does not
// use the contents of szFile to initialize itself.
//
ofn.lpstrFile[0] = '';
ofn.nMaxFile = sizeof(szFile);
ofn.lpstrFilter = "All*.*Text*.TXT";
ofn.nFilterIndex = 1;
ofn.lpstrFileTitle = NULL;
ofn.nMaxFileTitle = 0;
ofn.lpstrInitialDir = NULL;
ofn.Flags = OFN_PATHMUSTEXIST | OFN_FILEMUSTEXIST;

// Display the Open dialog box.

if (GetOpenFileName(&ofn)==TRUE)
hf = CreateFile(ofn.lpstrFile, GENERIC_READ,
0, (LPSECURITY_ATTRIBUTES) NULL,
OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL,
(HANDLE) NULL);