[Code]
const
NeedSize = 20;
DRIVE_UNKNOWN = 0;
DRIVE_NO_ROOT_DIR = 1;
DRIVE_REMOVEABLE = 2;
DRIVE_FIXED = 3;
DRIVE_REMOTE = 4;
DRIVE_CDROM = 5;
DRIVE_RAMDISK = 6;
var
ListBox: TListBox;
Text: TNewStaticText;
function GetLogicalDrives: DWORD;
external 'GetLogicalDrives@kernel32.dll stdcall';
function GetDriveType(nDrive: string): Longint;
external 'GetDriveTypeA@kernel32.dll stdcall';
procedure ListBoxOnClick(Sender: TObject);
var
NewLetter, OldString: string;
i: Integer;
begin
for i := 0 to ListBox.Items.Count - 1 do
begin
if ListBox.Selected[i] then
begin
NewLetter := Copy(ListBox.Items[i], 0, 1);
OldString := Copy(WizardForm.DirEdit.Text, 2, Length(WizardForm.DirEdit.Text));
WizardForm.DirEdit.Text := NewLetter + OldString;
end;
end;
end;
procedure InitializeWizard();
var
Page: TWizardPage;
Text: TNewStaticText;
Memo: TMemo;
Path: string;
FreeMB, TotalMB: Cardinal;
drives: DWORD;
i: integer;
begin
Text := TNewStaticText.Create(WizardForm);
Text.Top := 102;
Text.Width := 332;
Text.Height := 14;
Text.Caption := 'Список жестких дисков и свободного места';
Text.Parent := WizardForm.SelectDirPage;
ListBox := TListBox.Create(WizardForm);
ListBox.Top := 120;
ListBox.Width := 332;
ListBox.Height := ScaleY(90);
ListBox.Parent := WizardForm.SelectDirPage;
ListBox.OnClick := @ListBoxOnClick;
ListBox.Font.Name := 'Courier New';
ListBox.Font.Size := 10;
ListBox.Font.Style := [fsBold];
ListBox.Color := clBtnFace;
drives := GetLogicalDrives();
for i := 0 to 31 do
begin
if (drives and (1 shl i)) > 0 then
begin
Path := chr(ord('A') + i) + ':\';
if GetDriveType(Path) = DRIVE_FIXED then
begin
GetSpaceOnDisk(Path, True, FreeMB, TotalMB);
ListBox.Items.Add(Path + ' ' + IntToStr(round(FreeMB / TotalMB * 100)) + '% ' + IntToStr(FreeMB) + ' MB');
end;
end;
end;
end;
function NextButtonClick(CurPageID: Integer): Boolean;
var
Path: string;
FreeMB, TotalMB: Cardinal;
begin
Result := True;
if CurPageID = wpSelectDir then
begin
Path := ExtractFileDrive(WizardForm.DirEdit.Text);
GetSpaceOnDisk(Path, True, FreeMB, TotalMB);
if FreeMB < NeedSize then
begin
MsgBox('Недостаточно места на диске!', mbInformation, MB_OK)
Result := False;
end;
end;
end;
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