控制控制台程序全屏幕切换

switch a console application to full screen?
{
There is no documented way to make a console application fullscreen.
The following code works for both NT and Win9x.
For win NT I used the undocumented SetConsoleDisplayMode and
GetConsoleDisplayMode functions.
}
{
function GetConsoleDisplayMode(var lpdwMode: DWORD): BOOL; stdcall;
external 'kernel32.dll';
// lpdwMode: address of variable for current value of display mode
}
function NT_GetConsoleDisplayMode(var lpdwMode: DWORD): Boolean;
type
TGetConsoleDisplayMode = function(var lpdwMode: DWORD): BOOL;
stdcall;
var
hKernel: THandle;
GetConsoleDisplayMode: TGetConsoleDisplayMode;
begin
Result := False;
hKernel := GetModuleHandle('kernel32.dll');
if (hKernel > 0) then
begin @GetConsoleDisplayMode :=
GetProcAddress(hKernel, 'GetConsoleDisplayMode');
if Assigned(GetConsoleDisplayMode) then
begin
Result := GetConsoleDisplayMode(lpdwMode);
end;
end;
end;
{
function SetConsoleDisplayMode(hOut: THandle; // standard output handle
dwNewMode: DWORD; // specifies the display mode
var lpdwOldMode: DWORD // address of variable for previous value of display mode
): BOOL; stdcall; external 'kernel32.dll';
}
function NT_SetConsoleDisplayMode(hOut: THandle; dwNewMode: DWORD;
var lpdwOldMode: DWORD): Boolean;
type
TSetConsoleDisplayMode = function(hOut: THandle; dwNewMode: DWORD;
var lpdwOldMode: DWORD): BOOL;
stdcall;
var
hKernel: THandle;
SetConsoleDisplayMode: TSetConsoleDisplayMode;
begin
Result := False;
hKernel := GetModuleHandle('kernel32.dll');
if (hKernel > 0) then
begin @SetConsoleDisplayMode :=
GetProcAddress(hKernel, 'SetConsoleDisplayMode');
if Assigned(SetConsoleDisplayMode) then
begin
Result := SetConsoleDisplayMode(hOut, dwNewMode, lpdwOldMode);
end;
end;
end;
function GetConsoleWindow: THandle;
var
S: AnsiString;
C: Char;
begin
Result := 0;
Setlength(S, MAX_PATH + 1);
if GetConsoleTitle(PChar(S), MAX_PATH) <> 0 then
begin
C := S[1];
S[1] := '$';
SetConsoleTitle(PChar(S));
Result := FindWindow(nil, PChar(S));
S[1] := C;
SetConsoleTitle(PChar(S));
end;
end;
function SetConsoleFullScreen(bFullScreen: Boolean): Boolean;
const
MAGIC_CONSOLE_TOGGLE = 57359;
var
dwOldMode: DWORD;
dwNewMode: DWORD;
hOut: THandle;
hConsole: THandle;
begin
if Win32Platform = VER_PLATFORM_WIN32_NT then
begin
dwNewMode := Ord(bFullScreen);
NT_GetConsoleDisplayMode(dwOldMode);
hOut := GetStdHandle(STD_OUTPUT_HANDLE);
Result := NT_SetConsoleDisplayMode(hOut, dwNewMode, dwOldMode);
end
else
begin
hConsole := GetConsoleWindow;
Result := hConsole <> 0;
if Result then
begin
if bFullScreen then
begin
SendMessage(GetConsoleWindow, WM_COMMAND, MAGIC_CONSOLE_TOGGLE, 0);
end
else
begin
// Better solution than keybd_event under Win9X ?
keybd_event(VK_MENU, MapVirtualKey(VK_MENU, 0), 0, 0);
keybd_event(VK_RETURN, MapVirtualKey(VK_RETURN, 0), 0, 0);
keybd_event(VK_RETURN, MapVirtualKey(VK_RETURN, 0), KEYEVENTF_KEYUP, 0);
keybd_event(VK_MENU, MapVirtualKey(VK_MENU, 0), KEYEVENTF_KEYUP, 0);
end;
end;
end;
end;
procedure TForm1.Button1Click(Sender: TObject);
var
s: string;
begin
AllocConsole;
try
SetConsoleFullScreen(True);
Write('Hi, you are in full screen mode now. Type something [Return]: ');
Readln(s);
SetConsoleFullScreen(False);
// ShowMessage(Format('You typed: "%s"', ));
finally
FreeConsole;
end;
end;