你确定你认真找了 lpstrInitialDir Pointer to a null terminated string that can specify the initial directory. The algorithm for selecting the initial directory varies on different platforms.
MSDN对于设置打开对话框的回调函数的说明只有这么一点：Explorer-Style Hook Procedures You can customize an Explorer-style Open or Save As dialog box by providing a hook procedure, a custom template, or both. If you provide a hook procedure for an Explorer-style dialog box, the system creates a dialog box that is a child of the default dialog box. The hook procedure acts as the dialog procedure for the child dialog box. This child dialog box is based on the custom template, or on a default template if none is provided. For more information, see Explorer-Style Custom Templates.To enable a hook procedure for an Explorer-style Open or Save As dialog box, use the OPENFILENAME structure when you create the dialog box. Set the OFN_ENABLEHOOK and OFN_EXPLORER flags in the Flags member and specify the address of an OFNHookProc hook procedure in the lpfnHook member. If you provide a hook procedure and omit the OFN_EXPLORER flag, you must use an OFNHookProcOldStyle hook procedure and you will get the old-style user-interface. For more information, see Customizing Old-Style Dialog Boxes. An Explorer-style hook procedure receives a variety of messages while the dialog box is open. These include the following: The WM_INITDIALOG message and other standard dialog box messages such as the WM_CTLCOLORDLG control color message. A set ofWM_NOTIFY notification messages indicating actions taken by the user or other dialog box events. Messages for any additional controls that you defined by specifying a child dialog template. In addition, there is a set of messages that you can send to an Explorer-style dialog box to get information or to control the behavior and appearance of the dialog box.If you provide a hook procedure for an Explorer-style dialog box, the default dialog box procedure creates a child dialog box when the default dialog procedure is processing its WM_INITDIALOG message. The hook procedure acts as the dialog procedure for the child dialog box. At this time, the hook procedure receives its own WM_INITDIALOG message with the lParam parameter set to the address of the OPENFILENAME structure used to initialize the dialog box. After the child dialog finishes processing its own WM_INITDIALOG message, the default dialog procedure moves the standard controls, if necessary, to make room for any additional controls of the child dialog box. The default dialog procedure then sends the CDN_INITDONE notification message to the hook procedure. The hook procedure receivesWM_NOTIFY notification messages indicating actions taken by the user in the dialog box. You can use some of these messages to control the behavior of the dialog box. For example, the hook procedure receives the CDN_FILEOK message when the user chooses a filename and clicks the OK button. In response to this message, the hook procedure can use the SetWindowLong function to reject the selected name and force the dialog box to remain open.The lParam parameter for each WM_NOTIFY message is a pointer to an OFNOTIFY structure that defines the action. The code member in the header for the OFNOTIFY structure contains one of the following notification codes.CDN_FILEOK The user clicked the OK button; the dialog box is about to close. CDN_FOLDERCHANGE The user opened a new folder or directory. CDN_HELP The user clicked the Help button. CDN_INITDONE The system has finished initializing the dialog box, and the dialog box has finished processing the WM_INITDIALOG message. Also, the system has finished arranging controls in the common dialog box to make room for the controls of the child dialog box (if any). CDN_SELCHANGE The user selected a new file or folder from the file list. CDN_SHAREVIOLATION The common dialog box encountered a sharing violation on the file about to be returned. CDN_TYPECHANGE The user selected a new file type from the list of file types. These WM_NOTIFY messages supersede the FILEOKSTRING, LBSELCHSTRING, SHAREVISTRING, and HELPMSGSTRING registered messages used by previous versions of the Open and Save As dialog boxes. However, the hook procedure also receives the superseded message after the WM_NOTIFY message if the WM_NOTIFY processing does not use SetWindowLong to set a nonzero DWL_MSGRESULT value.To retrieve information about the status of the dialog box or to control the behavior and appearance of the dialog box, the hook procedure can send the following messages to the dialog box.CDM_GETFILEPATH Retrieves the path and filename of the selected file. CDM_GETFOLDERIDLIST Retrieves the item identifier list corresponding to the current folder that the dialog box has open. For more information about item identifier lists, seeItem Identifiers and Identifier Lists. CDM_GETFOLDERPATH Retrieves the path of the current folder or directory for the dialog box. CDM_GETSPEC Retrieves the filename (not including the path) of the file currently selected in the dialog box. CDM_HIDECONTROL Hides the specified control. CDM_SETCONTROLTEXT Sets the text in the specified control. CDM_SETDEFEXT Sets the default filename extension for the dialog box.
function IsWindows2000: boolean; var ver: TOSVersionInfo; begin Result := false; ver.dwOSVersionInfoSize := SizeOf(TOSVersionInfo); if not GetVersionEx(ver) then Exit; if (ver.dwPlatformID = VER_PLATFORM_WIN32_NT) then if (ver.dwMajorVersion >= 5) then Result := true; end; procedure Register; begin RegisterComponents('VoiceWin2K', [TOpenDialogEx]); RegisterComponents('VoiceWin2K', [TSaveDialogEx]); RegisterComponents('voiceWin2K', [TPrintDialogEx]); end;{Print Dialog Functions}(*procedure CenterWindow(Wnd: HWnd); var Rect: TRect; Monitor: TMonitor; begin GetWindowRect(Wnd, Rect); if Application.MainForm <> nil then Monitor := Application.MainForm.Monitor else Monitor := Screen.Monitors[0]; SetWindowPos(Wnd, 0, Monitor.Left + ((Monitor.Width - Rect.Right + Rect.Left) div 2), Monitor.Top + ((Monitor.Height - Rect.Bottom + Rect.Top) div 3), 0, 0, SWP_NOACTIVATE or SWP_NOSIZE or SWP_NOZORDER); end;{ Generic dialog hook. Centers the dialog on the screen in response to the WM_INITDIALOG message }function DialogHook(Wnd: HWnd; Msg: UINT; WParam: WPARAM; LParam: LPARAM): UINT; stdcall; begin Result := 0; case Msg of WM_INITDIALOG: begin if HookCtl3D then begin Subclass3DDlg(Wnd, CTL3D_ALL); SetAutoSubClass(True); end; CenterWindow(Wnd); CreationControl.FHandle := Wnd; CreationControl.FDefWndProc := Pointer(SetWindowLong(Wnd, GWL_WNDPROC, Longint(CreationControl.FObjectInstance))); CallWindowProc(CreationControl.FObjectInstance, Wnd, Msg, WParam, LParam); CreationControl := nil; end; WM_DESTROY: if HookCtl3D then SetAutoSubClass(False); end; end; *) {done with these} function OpenInterceptor(var DialogData: TOpenFileName): bool; stdcall; var DialogDataEx: TOpenFileNameEx; begin Move(DialogData, DialogDataEx, SizeOf(DialogData)); if CurInstShowPlaceBar then DialogDataEx.FlagsEx := OFN_EX_PLACESBAR else DialogDataEx.FlagsEx := OFN_EX_NOPLACESBAR; DialogDataEx.lStructSize := SizeOf(TOpenFileNameEx); Result := GetOpenFileNameEx(DialogDataEx); end;function SaveInterceptor(var DialogData: TOpenFileName): bool; stdcall; var DialogDataEx: TOpenFileNameEx; begin Move(DialogData, DialogDataEx, SizeOf(DialogData)); if CurInstShowPlaceBar then DialogDataEx.FlagsEx := OFN_EX_PLACESBAR else DialogDataEx.FlagsEx := OFN_EX_NOPLACESBAR; DialogDataEx.lStructSize := SizeOf(TOpenFileNameEx); Result := GetSaveFileNameEx(DialogDataEx); end;function TPrintDialogEx.PrintInterceptor: Boolean; const PrintRanges: array[TPrintRange] of Integer = (PD_ALLPAGES, PD_SELECTION, PD_PAGENUMS); var PrintDlgRec: TPrintDlgEx; //DevHandle: THandle; begin Result := false; // PrintDlgEx(PrintDlgRec); FillChar(PrintDlgRec, SizeOf(PrintDlgRec), 0); with PrintDlgRec do begin lStructSize := sizeof(PrintDlgRec); hwndOwner := Application.Handle; hDevMode := 0; hDevNames := 0; hDC := 0; Flags := PD_ReturnDC or PD_Collate; Flags2 := 0; ExclusionFlags := 0; nMaxPageRanges := 10; lpPageRanges.nFromPage := 0; lpPageRanges.nToPage := 10; nMinPage := 1; nMaxPage := 1000; nCopies := 1; hInstance := 0; lpPrintTemplateName := nil; lpCallback := nil; nPropertyPages := 0; // lphPropertyPages.lppsp := null; nStartPage := Start_Page_General; dwResultAction := 0;{ lStructSize := SizeOf(PrintDlgRec); hInstance := SysInit.HInstance; GetPrinter(DevHandle, hDevNames); hDevMode := CopyData(DevHandle); hDevNames := 0; Flags := PD_ALLPAGES; { if Collate then Inc(Flags, PD_COLLATE); if not (poPrintToFile in Options) then Inc(Flags, PD_HIDEPRINTTOFILE); if not (poPageNums in Options) then Inc(Flags, PD_NOPAGENUMS); if not (poSelection in Options) then Inc(Flags, PD_NOSELECTION); if poDisablePrintToFile in Options then Inc(Flags, PD_DISABLEPRINTTOFILE); if PrintToFile then Inc(Flags, PD_PRINTTOFILE); if poHelp in Options then Inc(Flags, PD_SHOWHELP); if not (poWarning in Options) then Inc(Flags, PD_NOWARNING);} { lpPageRanges.nFromPage := FromPage; lpPageRanges.nToPage := ToPage; nMinPage := MinPage; nMaxPage := MaxPage; nPropertyPages := 1; nStartPage := START_PAGE_GENERAL; // HookCtl3D := Ctl3D; hWndOwner := Application.Handle; Flags2 := 0; // Result := TaskModalDialog(@PrintDlgEx, PrintDlgRec);} // Result := PrintDlgEx(PrintDlgRec); if Result then begin // SetPrinter(hDevMode, hDevNames); // FCollate := Flags and PD_COLLATE <> 0; // FPrintToFile := Flags and PD_PRINTTOFILE <> 0; // if Flags and PD_SELECTION <> 0 then FPrintRange := prSelection else // if Flags and PD_PAGENUMS <> 0 then FPrintRange := prPageNums else // FPrintRange := prAllPages; // FFromPage := nFromPage; // FToPage := nToPage; if nCopies = 1 then Copies := Printer.Copies else Copies := nCopies; end else begin if hDevMode <> 0 then GlobalFree(hDevMode); if hDevNames <> 0 then GlobalFree(hDevNames); end; end; end; constructor TOpenDialogEx.Create(AOwner: TComponent); begin inherited Create(AOwner); end;function TOpenDialogEx.Execute: boolean; begin if IsWindows2000 then begin CurInstShowPlaceBar := FShowPlacesBar; Result := DoExecute(@OpenInterceptor); end else Result := inherited Execute; end;{ TSaveDialogEx }constructor TSaveDialogEx.Create(AOwner: TComponent); begin inherited Create(AOwner); end;function TSaveDialogEx.Execute: boolean; begin if IsWindows2000 then begin CurInstShowPlaceBar := FShowPlacesBar; Result := DoExecute(@SaveInterceptor); end else Result := inherited Execute; end;{ TPrintDialogEx }constructor TPrintDialogEx.Create(AOwner: TComponent); begin inherited Create(AOwner); end;function TPrintDialogEx.Execute: boolean; begin if IsWindows2000 then begin CurInstShowPlacebar := FShowPrinterBar; Result := PrintInterceptor; end else Result := inherited Execute; end;end
var
ofn:tagOFNA;
szFile:Pchar;
begin
GetMem(szFile,260);
ZeroMemory(szFile,260);
ZeroMemory(@ofn, sizeof(tagOFNA));
ofn.lStructSize := sizeof(tagOFNA);
ofn.hwndOwner := Application.Handle;
ofn.lpstrFile := szFile;
ofn.nMaxFile := 260;
ofn.lpstrFilter := pchar('All'#0'*.*'#0'Text'#0'*.TXT'#0);
ofn.nFilterIndex := 1;
ofn.lpstrFileTitle := nil;
ofn.nMaxFileTitle := 0;
ofn.lpstrInitialDir := nil;//这里填入你的路径
ofn.Flags := OFN_PATHMUSTEXIST or OFN_FILEMUSTEXIST;
if (GetOpenFileName(ofn))then
ShowMessage(szFile)FreeMem(szFile);end;
比如可以加上图像预览的功能（我写的：http://zyl910vb.51.net/vb/wdzp/MyOpenDlg.htm，注意下载后把*.zip.jpg改名成*.zip）
现在发现MSDN没有对 在对话框打开时 设置浏览路径的方法！所以才跑到这里问！
比如可以加上图像预览的功能（我写的：http://zyl910vb.51.net/vb/wdzp/MyOpenDlg.htm，注意下载后把*.zip.jpg改名成*.zip）
现在发现MSDN没有对 在对话框打开时 设置浏览路径的方法！所以才跑到这里问！
就可以设置打开对话框的路径啊
lpstrInitialDir
Pointer to a null terminated string that can specify the initial directory. The algorithm for selecting the initial directory varies on different platforms.
CommDlg;type //定义打开文件对话框信息结构回调函数
TLPOFNHOOKPROC = function(h: hwnd; uMsg: UINT; wp: wparam; lp: lParam): integer;
type //定义打开文件对话框信息结构
TOpenInfo = packed record
lStructSize: dword;
hwndOwner: hwnd;
hInstance: Hwnd;
lpstrFilter: LPCTSTR;
lpstrCustomFilter: LPTSTR;
nMaxCustFilter: dword;
nFilterIndex: dword;
lpstrFile: lptstr; //该参数使用来存放对话框返回的文件名（包含路径）的，得是一个至少256个长的Pchar
nMaxFile: dword; //该参数使用来指定info.lpstrFile长度以及存放对话框返回的文件名的长度的
lpstrFileTitle: lptstr;
nMaxFileTitle: dword;
lpstrInitialDir: lpctstr;
lpstrTitle: lpctstr;
Flags: dword;
nFileOffset: word;
nFileExtension: word;
lpstrDefExt: lpctstr;
lCustData: Lparam;
lpfnHook: TLPOFNHOOKPROC;
lpTemplateName: lpctstr;
pvReserved: integer;
dwReserved: dword;
FlagsEx: dword;
end;function GetOpenFileName(var info: TOpenInfo): Boolean; stdcall; external 'comdlg32.dll' name 'GetOpenFileNameA';procedure TForm1.Button1Click(Sender: TObject);
var
info: TOpenInfo;
lpstrFile: array[0..1000] of char;
lpstrFileTitle: array[0..1000] of char;
lpstrFilter: array[0..50] of char;
S: string;
begin
FillChar(lpstrFile, SizeOf(lpstrFile), 0);
FillChar(lpstrFileTitle, SizeOf(lpstrFileTitle), 0);
FillChar(lpstrFilter, SizeOf(lpstrFilter), 0);
S := '文本文件';
Move(S[1], lpstrFilter, Length(S));
S := '*.TXT';
Move(S[1], lpstrFilter[9], Length(S)); info.lStructSize := sizeof(info);
info.hWndOwner := handle;
info.hInstance := hinstance;
info.lpstrFilter := lpstrFilter;
info.lpstrCustomFilter := nil;
info.nMaxCustFilter := 0;
info.nFilterIndex := 1;
info.lpstrFile := lpstrFile;
info.nMaxFile := SizeOf(lpstrFile);
info.lpstrFileTitle := lpstrFileTitle;
info.nMaxFileTitle := SizeOf(lpstrFileTitle);
info.lpstrInitialDir := 'c:\';
info.lpstrTitle := 'Open Test';
info.Flags := OFN_EXPLORER + OFN_ALLOWMULTISELECT;
info.nFileOffset := 0;
info.nFileExtension := 0;
info.lpstrDefExt := 'txt';
info.lCustData := 0;
info.lpfnHook := nil;
info.lpTemplateName := '';
info.pvReserved := 0;
info.dwReserved := 0;
info.FlagsEx := 0;
try
if GetOpenFileName(info) then
ShowMessage(info.lpstrFile);
except
Caption := SysErrorMessage(getlasterror);
end;
end;
You can customize an Explorer-style Open or Save As dialog box by providing a hook procedure, a custom template, or both. If you provide a hook procedure for an Explorer-style dialog box, the system creates a dialog box that is a child of the default dialog box. The hook procedure acts as the dialog procedure for the child dialog box. This child dialog box is based on the custom template, or on a default template if none is provided. For more information, see Explorer-Style Custom Templates.To enable a hook procedure for an Explorer-style Open or Save As dialog box, use the OPENFILENAME structure when you create the dialog box. Set the OFN_ENABLEHOOK and OFN_EXPLORER flags in the Flags member and specify the address of an OFNHookProc hook procedure in the lpfnHook member. If you provide a hook procedure and omit the OFN_EXPLORER flag, you must use an OFNHookProcOldStyle hook procedure and you will get the old-style user-interface. For more information, see Customizing Old-Style Dialog Boxes. An Explorer-style hook procedure receives a variety of messages while the dialog box is open. These include the following: The WM_INITDIALOG message and other standard dialog box messages such as the WM_CTLCOLORDLG control color message.
A set ofWM_NOTIFY notification messages indicating actions taken by the user or other dialog box events.
Messages for any additional controls that you defined by specifying a child dialog template.
In addition, there is a set of messages that you can send to an Explorer-style dialog box to get information or to control the behavior and appearance of the dialog box.If you provide a hook procedure for an Explorer-style dialog box, the default dialog box procedure creates a child dialog box when the default dialog procedure is processing its WM_INITDIALOG message. The hook procedure acts as the dialog procedure for the child dialog box. At this time, the hook procedure receives its own WM_INITDIALOG message with the lParam parameter set to the address of the OPENFILENAME structure used to initialize the dialog box. After the child dialog finishes processing its own WM_INITDIALOG message, the default dialog procedure moves the standard controls, if necessary, to make room for any additional controls of the child dialog box. The default dialog procedure then sends the CDN_INITDONE notification message to the hook procedure. The hook procedure receivesWM_NOTIFY notification messages indicating actions taken by the user in the dialog box. You can use some of these messages to control the behavior of the dialog box. For example, the hook procedure receives the CDN_FILEOK message when the user chooses a filename and clicks the OK button. In response to this message, the hook procedure can use the SetWindowLong function to reject the selected name and force the dialog box to remain open.The lParam parameter for each WM_NOTIFY message is a pointer to an OFNOTIFY structure that defines the action. The code member in the header for the OFNOTIFY structure contains one of the following notification codes.CDN_FILEOK The user clicked the OK button; the dialog box is about to close.
CDN_FOLDERCHANGE The user opened a new folder or directory.
CDN_HELP The user clicked the Help button.
CDN_INITDONE The system has finished initializing the dialog box, and the dialog box has finished processing the WM_INITDIALOG message. Also, the system has finished arranging controls in the common dialog box to make room for the controls of the child dialog box (if any).
CDN_SELCHANGE The user selected a new file or folder from the file list.
CDN_SHAREVIOLATION The common dialog box encountered a sharing violation on the file about to be returned.
CDN_TYPECHANGE The user selected a new file type from the list of file types.
These WM_NOTIFY messages supersede the FILEOKSTRING, LBSELCHSTRING, SHAREVISTRING, and HELPMSGSTRING registered messages used by previous versions of the Open and Save As dialog boxes. However, the hook procedure also receives the superseded message after the WM_NOTIFY message if the WM_NOTIFY processing does not use SetWindowLong to set a nonzero DWL_MSGRESULT value.To retrieve information about the status of the dialog box or to control the behavior and appearance of the dialog box, the hook procedure can send the following messages to the dialog box.CDM_GETFILEPATH Retrieves the path and filename of the selected file.
CDM_GETFOLDERIDLIST Retrieves the item identifier list corresponding to the current folder that the dialog box has open. For more information about item identifier lists, seeItem Identifiers and Identifier Lists.
CDM_GETFOLDERPATH Retrieves the path of the current folder or directory for the dialog box.
CDM_GETSPEC Retrieves the filename (not including the path) of the file currently selected in the dialog box.
CDM_HIDECONTROL Hides the specified control.
CDM_SETCONTROLTEXT Sets the text in the specified control.
CDM_SETDEFEXT Sets the default filename extension for the dialog box.
可以左侧的列表中选择目录
可以左侧的列表中选择目录
unit Win2kdlg;interfaceuses
Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
CommDlg, Printers, CommCtrl;const OFN_EX_PLACESBAR = 0;
OFN_EX_NOPLACESBAR = 1;
START_PAGE_GENERAL = 0;type
TOpenFileNameEx = packed record
lStructSize: DWORD;
hWndOwner: HWND;
hInstance: HINST;
lpstrFilter: PAnsiChar;
lpstrCustomFilter: PAnsiChar;
nmaxCustFilter: DWORD;
nFilterIndex: DWORD;
lpstrFile: PAnsiChar;
nMaxFile: DWORD;
lpstrFileTitle: PAnsiChar;
nMaxFileTitle: DWORD;
lpstrInitialDir: PAnsiChar;
lpstrTitle: PAnsiChar;
Flags: DWORD;
nFileOffset: WOrd;
nFileExtension: Word;
lpstrDefExt: PAnsiChar;
lCustData: LPARAM;
lpfnHook: function(Wnd: HWND; Msg: UINT; wParam: WPARAM; lParam: LPARAM): UINT stdcall;
lpTemplateName: PAnsiChar;
pvReserved: Pointer;
dwReserved: DWORD;
FlagsEx: DWORD;
end; HPropSheetPage = record
lppsp: _PropSheetHeader;
end; lpPrintPageRange = record
nFromPage: DWORD;
nToPage: DWORD;
end; TPrintDlgEx = packed record
lStructSize: DWORD;
hWndOwner: HWND;
hDevMode: HGLOBAL;
hDevNames: HGLOBAL;
hDC: HDC;
Flags: DWORD;
Flags2: DWORD;
ExclusionFlags: DWORD;
nPageRanges: DWORD;
nMaxPageRanges: DWORD;
lpPageRanges: lpPrintPageRange;
nMinPage: Word;
nMaxPage: Word;
nCopies: Word;
hInstance: HINST;
lpPrintTemplateName: PWideChar;
lpCallBack: Pointer;
nPropertyPages: DWORD;
lphPropertyPages: HPropSheetPage;
nStartPage: DWORD;
dwResultAction: DWORD;
end;
type
TOpenDialogEx = class(TOpenDialog)
private
FShowPlacesbar: boolean;
protected
public
constructor Create(AOwner: TComponent); override;
function Execute: boolean; override;
published
property ShowPlacesBar: boolean read FShowPlacesBar write FShowPlacesBar;
end;type
TSaveDialogEx = class(TSaveDialog)
private
FShowPlacesbar: boolean;
protected
public
constructor Create(AOwner: TComponent); override;
function Execute: boolean; override;
published
property ShowPlacesBar: boolean read FShowPlacesBar write FShowPlacesBar;
end;type
TPrintDialogEx = class(TPrintDialog)
private
FShowPrinterBar: boolean;
function PrintInterceptor: Boolean;
protected
public
constructor Create(AOwner: TComponent); override;
function Execute: boolean; override;
published
property ShowPrintersbar: boolean read FShowPrinterBar write FShowPrinterBar;
end;procedure Register;function GetOpenFileNameEx(var OpenFile: TopenFileNameEx): bool; stdcall;
function GetSaveFileNameEx(var SaveFile: TOpenFileNameEx): bool; stdcall;
//function PrintDlgEx(var PrintDlgRec: TPrintDlgEx): Bool; stdcall;implementationvar CurInstShowPlaceBar: boolean;
//HookCtl3D: Boolean;function GetOpenFileNameEx; external 'comdlg32.dll' name 'GetOpenFileNameA';
function GetSaveFileNameEx; external 'comdlg32.dll' name 'GetSaveFileNameA';
//function PrintDlgEx; external 'comdlg32.dll' name 'PrintDlgExA';{Printer functions ********************************************************}//procedure GetPrinter(var DeviceMode, DeviceNames: THandle);
//var
// Device, Driver, Port: array[0..79] of char;
// DevNames: PDevNames;
// Offset: PChar;
//begin
// Printer.GetPrinter(Device, Driver, Port, DeviceMode);
// if DeviceMode <> 0 then
// begin
// DeviceNames := GlobalAlloc(GHND, SizeOf(TDevNames) +
// StrLen(Device) + StrLen(Driver) + StrLen(Port) + 3);
// DevNames := PDevNames(GlobalLock(DeviceNames));
// try
// Offset := PChar(DevNames) + SizeOf(TDevnames);
// with DevNames^ do
// begin
// wDriverOffset := Longint(Offset) - Longint(DevNames);
// Offset := StrECopy(Offset, Driver) + 1;
// wDeviceOffset := Longint(Offset) - Longint(DevNames);
// Offset := StrECopy(Offset, Device) + 1;
// wOutputOffset := Longint(Offset) - Longint(DevNames);;
// StrCopy(Offset, Port);
// end;
// finally
// GlobalUnlock(DeviceNames);
// end;
// end;
//end;
//
//procedure SetPrinter(DeviceMode, DeviceNames: THandle);
//var
// DevNames: PDevNames;
//begin
// DevNames := PDevNames(GlobalLock(DeviceNames));
// try
// with DevNames^ do
// Printer.SetPrinter(PChar(DevNames) + wDeviceOffset,
// PChar(DevNames) + wDriverOffset,
// PChar(DevNames) + wOutputOffset, DeviceMode);
// finally
// GlobalUnlock(DeviceNames);
// GlobalFree(DeviceNames);
// end;
//end;
//
//function CopyData(Handle: THandle): THandle;
//var
// Src, Dest: PChar;
// Size: Integer;
//begin
// if Handle <> 0 then
// begin
// Size := GlobalSize(Handle);
// Result := GlobalAlloc(GHND, Size);
// if Result <> 0 then
// try
// Src := GlobalLock(Handle);
// Dest := GlobalLock(Result);
// if (Src <> nil) and (Dest <> nil) then Move(Src^, Dest^, Size);
// finally
// GlobalUnlock(Handle);
// GlobalUnlock(Result);
// end
// end
// else Result := 0;
//end;
//
var ver: TOSVersionInfo;
begin
Result := false;
ver.dwOSVersionInfoSize := SizeOf(TOSVersionInfo);
if not GetVersionEx(ver) then
Exit;
if (ver.dwPlatformID = VER_PLATFORM_WIN32_NT) then
if (ver.dwMajorVersion >= 5) then
Result := true;
end;
procedure Register;
begin
RegisterComponents('VoiceWin2K', [TOpenDialogEx]);
RegisterComponents('VoiceWin2K', [TSaveDialogEx]);
RegisterComponents('voiceWin2K', [TPrintDialogEx]);
end;{Print Dialog Functions}(*procedure CenterWindow(Wnd: HWnd);
var
Rect: TRect;
Monitor: TMonitor;
begin
GetWindowRect(Wnd, Rect);
if Application.MainForm <> nil then
Monitor := Application.MainForm.Monitor
else
Monitor := Screen.Monitors[0];
SetWindowPos(Wnd, 0,
Monitor.Left + ((Monitor.Width - Rect.Right + Rect.Left) div 2),
Monitor.Top + ((Monitor.Height - Rect.Bottom + Rect.Top) div 3),
0, 0, SWP_NOACTIVATE or SWP_NOSIZE or SWP_NOZORDER);
end;{ Generic dialog hook. Centers the dialog on the screen in response to
the WM_INITDIALOG message }function DialogHook(Wnd: HWnd; Msg: UINT; WParam: WPARAM; LParam: LPARAM): UINT; stdcall;
begin
Result := 0;
case Msg of
WM_INITDIALOG:
begin
if HookCtl3D then
begin
Subclass3DDlg(Wnd, CTL3D_ALL);
SetAutoSubClass(True);
end;
CenterWindow(Wnd);
CreationControl.FHandle := Wnd;
CreationControl.FDefWndProc := Pointer(SetWindowLong(Wnd, GWL_WNDPROC,
Longint(CreationControl.FObjectInstance)));
CallWindowProc(CreationControl.FObjectInstance, Wnd, Msg, WParam, LParam);
CreationControl := nil;
end;
WM_DESTROY:
if HookCtl3D then SetAutoSubClass(False);
end;
end; *)
{done with these}
function OpenInterceptor(var DialogData: TOpenFileName): bool; stdcall;
var DialogDataEx: TOpenFileNameEx;
begin
Move(DialogData, DialogDataEx, SizeOf(DialogData));
if CurInstShowPlaceBar then
DialogDataEx.FlagsEx := OFN_EX_PLACESBAR
else
DialogDataEx.FlagsEx := OFN_EX_NOPLACESBAR;
DialogDataEx.lStructSize := SizeOf(TOpenFileNameEx);
Result := GetOpenFileNameEx(DialogDataEx);
end;function SaveInterceptor(var DialogData: TOpenFileName): bool; stdcall;
var DialogDataEx: TOpenFileNameEx;
begin
Move(DialogData, DialogDataEx, SizeOf(DialogData));
if CurInstShowPlaceBar then
DialogDataEx.FlagsEx := OFN_EX_PLACESBAR
else
DialogDataEx.FlagsEx := OFN_EX_NOPLACESBAR;
DialogDataEx.lStructSize := SizeOf(TOpenFileNameEx);
Result := GetSaveFileNameEx(DialogDataEx);
end;function TPrintDialogEx.PrintInterceptor: Boolean;
const
PrintRanges: array[TPrintRange] of Integer =
(PD_ALLPAGES, PD_SELECTION, PD_PAGENUMS);
var
PrintDlgRec: TPrintDlgEx;
//DevHandle: THandle;
begin
Result := false;
// PrintDlgEx(PrintDlgRec); FillChar(PrintDlgRec, SizeOf(PrintDlgRec), 0);
with PrintDlgRec do
begin
lStructSize := sizeof(PrintDlgRec);
hwndOwner := Application.Handle;
hDevMode := 0;
hDevNames := 0;
hDC := 0;
Flags := PD_ReturnDC or PD_Collate;
Flags2 := 0;
ExclusionFlags := 0;
nMaxPageRanges := 10;
lpPageRanges.nFromPage := 0;
lpPageRanges.nToPage := 10;
nMinPage := 1;
nMaxPage := 1000;
nCopies := 1;
hInstance := 0;
lpPrintTemplateName := nil;
lpCallback := nil;
nPropertyPages := 0;
// lphPropertyPages.lppsp := null;
nStartPage := Start_Page_General;
dwResultAction := 0;{ lStructSize := SizeOf(PrintDlgRec);
hInstance := SysInit.HInstance;
GetPrinter(DevHandle, hDevNames);
hDevMode := CopyData(DevHandle);
hDevNames := 0;
Flags := PD_ALLPAGES;
{ if Collate then Inc(Flags, PD_COLLATE);
if not (poPrintToFile in Options) then Inc(Flags, PD_HIDEPRINTTOFILE);
if not (poPageNums in Options) then Inc(Flags, PD_NOPAGENUMS);
if not (poSelection in Options) then Inc(Flags, PD_NOSELECTION);
if poDisablePrintToFile in Options then Inc(Flags, PD_DISABLEPRINTTOFILE);
if PrintToFile then Inc(Flags, PD_PRINTTOFILE);
if poHelp in Options then Inc(Flags, PD_SHOWHELP);
if not (poWarning in Options) then Inc(Flags, PD_NOWARNING);}
{ lpPageRanges.nFromPage := FromPage;
lpPageRanges.nToPage := ToPage;
nMinPage := MinPage;
nMaxPage := MaxPage;
nPropertyPages := 1;
nStartPage := START_PAGE_GENERAL;
// HookCtl3D := Ctl3D;
hWndOwner := Application.Handle;
Flags2 := 0;
// Result := TaskModalDialog(@PrintDlgEx, PrintDlgRec);}
// Result := PrintDlgEx(PrintDlgRec);
if Result then
begin
// SetPrinter(hDevMode, hDevNames);
// FCollate := Flags and PD_COLLATE <> 0;
// FPrintToFile := Flags and PD_PRINTTOFILE <> 0;
// if Flags and PD_SELECTION <> 0 then FPrintRange := prSelection else
// if Flags and PD_PAGENUMS <> 0 then FPrintRange := prPageNums else
// FPrintRange := prAllPages;
// FFromPage := nFromPage;
// FToPage := nToPage;
if nCopies = 1 then
Copies := Printer.Copies else
Copies := nCopies;
end
else begin
if hDevMode <> 0 then GlobalFree(hDevMode);
if hDevNames <> 0 then GlobalFree(hDevNames);
end;
end;
end;
constructor TOpenDialogEx.Create(AOwner: TComponent);
begin
inherited Create(AOwner);
end;function TOpenDialogEx.Execute: boolean;
begin
if IsWindows2000 then
begin
CurInstShowPlaceBar := FShowPlacesBar;
Result := DoExecute(@OpenInterceptor);
end
else
Result := inherited Execute;
end;{ TSaveDialogEx }constructor TSaveDialogEx.Create(AOwner: TComponent);
begin
inherited Create(AOwner);
end;function TSaveDialogEx.Execute: boolean;
begin
if IsWindows2000 then
begin
CurInstShowPlaceBar := FShowPlacesBar;
Result := DoExecute(@SaveInterceptor);
end
else
Result := inherited Execute;
end;{ TPrintDialogEx }constructor TPrintDialogEx.Create(AOwner: TComponent);
begin
inherited Create(AOwner);
end;function TPrintDialogEx.Execute: boolean;
begin
if IsWindows2000 then
begin
CurInstShowPlacebar := FShowPrinterBar;
Result := PrintInterceptor;
end
else
Result := inherited Execute;
end;end
让大家看看吧，这么多大侠在这里使招都没击中要害啊~~要是你没主页空间的话，我可以提供啊（呵呵，做好人来了^o^）
我只不过是举个例子
不能用系统的文件列表
我需要的是一个自己的目录列表比如：
左侧是一个List控件
右击List把当前路径加入列表
双击List把对话框路径设为选择的路径To CoolSlob()：
什么图片？你能提供给我空间的话就太好了
所以没有左侧的目录列表
你用过Office2000吗？
Office2000里的 打开/保存对话框也有左侧的目录列表
只不过它好像不是调用GetOpenFileName，而是另外写的
Folder Cache
安装Folder Cache后会在打开/保存对话框中增加一个新的按钮，点击这个按钮会列出最近使用过的文件夹列表，并且可以向这个列表中添加自己常用的文件夹，还可以自由设置列表显示的文件夹数量 ……同时我在用Spy查看打开对话框的时候发现了一条WM_USER+7的消息
可是CDM_……只到了WM_USER+6
那是什么消息？
CDM_……消息是WM_USER+100+n
--------------------------------
不过既然它能办到,我们也应该能办到,等我的消息,估计今晚12点前能搞定.---------------------------------研究中...
只是运行不了~~而且xxxxxxxxxxxxxxxxxxxxxxxxx大家谨慎一点好~~
主要是上传我写的一些程序
2、在那个编辑框中设置新的目录名
3、模拟鼠标单击“确定”按钮，这时候对话框切换到新的目录
4、恢复原来编辑框的值----------------------------------下面是我的C++Builder代码，只贴出关键部分，其它免了。TButton *Btn;
TPanel* Panel;
HWND hFileNameWnd;
HWND hOkButtonWnd;//DoShow
void __fastcall TMyOpenDialog::DoShow(void)
{
TRect PreviewRect, StaticRect; //在对话框中添加一个按钮
GetClientRect ( this->Handle, (RECT*)&PreviewRect );
StaticRect = this->GetStaticRect();
PreviewRect.Left = StaticRect.Left + (StaticRect.Right - StaticRect.Left); Panel = new TPanel(this);
Panel->BoundsRect = PreviewRect; Btn = new TButton(this);
Btn->Parent = Panel;
Btn->OnClick = ButtonClick;//设置按钮事件句柄 Panel->ParentWindow = this->Handle; //得到“文件名”编辑控件和“确定”按钮的句柄
hFileNameWnd = GetDlgItem(GetParent(this->Handle),0x480);
hOkButtonWnd = GetDlgItem(GetParent(this->Handle),1);
}
//---------------------------------------------------------------------------
//ButtonClick
void __fastcall TMyOpenDialog::ButtonClick(TObject *Sender)
{
if(hFileNameWnd != NULL)
{
char PrevBuf[64]; //先保存原来的值
GetWindowText(hFileNameWnd,PrevBuf,sizeof(PrevBuf)); ///设置新的文件夹
AnsiString NewPath; NewPath = "f:\\inprise";
SetWindowText(hFileNameWnd,NewPath.c_str()); //模拟鼠标单击“确定”按钮
SendMessage(hOkButtonWnd,WM_LBUTTONDOWN,(WPARAM)MK_LBUTTON,(LPARAM)MAKEWORD(0,0));
SendMessage(hOkButtonWnd,WM_LBUTTONUP,(WPARAM)MK_LBUTTON,(LPARAM)MAKEWORD(0,0)); //恢复原来的值
SetWindowText(hFileNameWnd,PrevBuf); //因为鼠标在“确定”上单击，所以它得到焦点，必须取消掉，否则会留下痕迹。
//那个Folder Cache有Bug，它没有执行这一步，所以“确定”按钮仍然具有焦点，
//从另一方面来说，这倒成为我的推断的证据^_^
::SetFocus(Btn->Handle);
}
}
//---------------------------------------------------------------------------