#include "l_bitmap.h"
L_LTDLG_API L_INT L_DlgOpen(hWndOwner, pOpenFileName, pDlgParams)
Displays the Open dialog box, and gets the options for L_LoadFile.
Handle of the window, which owns the dialog.
Windows structure. This structure is documented in the Microsoft Windows SDK documentation.
For this function, you must set the following members of the OPENFILENAMEW structure:
lStructSize
lpstrFilter
nFilterIndex
lpstrFile
nMaxFile
lpstrFileTitle
nMaxFileTitle
lpstrInitialDir
lpstrTitle
lpstrDefExt
Flags
LEADTOOLS specifically sets the following flags:
Pointer to an OPENDLGPARAMS structure to be updated with the values entered by the user through the dialog. Set members of this structure, before calling this function, to set the dialogs initial values.
✎ NOTE
In the Files of type, the file types listed below are only supported in 32-bit platforms:
- Canon RAW Format (*.crw)
- DJVU (*.djv)
- Kodak Digital Camera KDC (*.kdc)
- Kodak Photo CD (*.pcd)
- Profession Digital Camera (*.dcr)
Value | Meaning |
---|---|
SUCCESS_DLG_OK | The "OK" button was pressed, and the dialog exited successfully. |
SUCCESS_DLG_CANCEL | The "Cancel" button was pressed, and the dialog exited successfully. |
< 1 | An error occurred. Refer to Return Codes. |
Required DLLs and Libraries
L_INT EXT_CALLBACK FileLoadCallback(LPOPENDLGFILEDATA lpFileData,
L_INT nTotalPercent,
L_INT nFilePercent,
L_VOID* lpUserData)
{
UNREFERENCED_PARAMETER(lpUserData);
if ( nFilePercent == 100 )
{
MessageBox ( NULL, lpFileData->szFileName, TEXT("File Loaded"), MB_OK ) ;
}
if ( nTotalPercent == 100 )
{
MessageBox ( NULL, TEXT("File(s) Loading Completed"), TEXT("File(s) Loaded"), MB_OK ) ;
}
return SUCCESS ;
}
L_INT DlgOpenExample(HWND hWnd)
{
OPENFILENAME OpenFileName;
OPENDLGPARAMS DlgParams ;
L_INT nRet ;
memset ( &OpenFileName, 0, sizeof ( OPENFILENAME ) ) ;
memset ( &DlgParams, 0, sizeof ( OPENDLGPARAMS ) ) ;
OpenFileName.lStructSize = sizeof(OPENFILENAME);
OpenFileName.lpstrInitialDir = NULL;
OpenFileName.Flags = OFN_EXPLORER |
OFN_ALLOWMULTISELECT ;
DlgParams.uStructSize = sizeof ( OPENDLGPARAMS ) ;
DlgParams.pfnFileLoadCallback = FileLoadCallback ;
DlgParams.uDlgFlags = DLG_OPEN_SHOW_PROGRESSIVE |
DLG_OPEN_SHOW_MULTIPAGE |
DLG_OPEN_SHOW_LOADROTATED |
DLG_OPEN_SHOW_LOADCOMPRESSED |
DLG_OPEN_SHOW_FILEINFO |
DLG_OPEN_SHOW_PREVIEW |
DLG_OPEN_SHOW_DELPAGE |
DLG_OPEN_SHOW_LOADOPTIONS |
DLG_OPEN_VIEWTOTALPAGES |
DLG_OPEN_LOADBITMAP |
DLG_OPEN_GENERATETHUMBNAIL ;
nRet = L_DlgInit ( DLG_INIT_COLOR ) ;
if(nRet != SUCCESS && nRet != ERROR_DLG_ALREADYINITIATED)
return nRet;
nRet = L_DlgOpen ( hWnd, &OpenFileName, &DlgParams );
if ( SUCCESS_DLG_OK == nRet )
{
int i = 0 ;
// After using the return data you should free allocated data
for ( i = 0 ; i < DlgParams.nNumOfFiles ; i++ )
{
if ( NULL != DlgParams.pFileData [ i ].pBitmap )
{
if ( DlgParams.pFileData [ i ].pBitmap->Flags.Allocated )
{
L_FreeBitmap( DlgParams.pFileData [ i ].pBitmap ) ;
}
GlobalFree ( DlgParams.pFileData [ i ].pBitmap ) ;
}
if ( NULL != DlgParams.pFileData [ i ].pThumbnail )
{
if ( DlgParams.pFileData [ i ].pThumbnail->Flags.Allocated )
{
L_FreeBitmap( DlgParams.pFileData [ i ].pThumbnail ) ;
}
GlobalFree ( DlgParams.pFileData [ i ].pThumbnail ) ;
}
if ( NULL != DlgParams.pFileData [ i ].pFileInfo )
{
GlobalFree ( DlgParams.pFileData [ i ].pFileInfo ) ;
}
if ( NULL != DlgParams.pFileData [ i ].FileOptions.pOptions )
{
GlobalFree ( DlgParams.pFileData [ i ].FileOptions.pOptions ) ;
}
}
if ( NULL != DlgParams.pFileData )
{
GlobalFree ( DlgParams.pFileData ) ;
}
}
else
return nRet;
nRet = L_DlgFree();
return nRet;
}