私は機能を持っています
function bgSetDisableOverlappedContent(CAA: BOOL; var ErrorCode: DWORD; ErrorText: string): Boolean;
begin
errorCode := ERROR_SUCCESS;
ErrorText := '';
if not GetOSVersion >= 60 then
Exit;
Result := SystemParametersInfo(SPI_SETDISABLEOVERLAPPEDCONTENT, 0, @CAA, 0);
if not Result then
begin
ErrorCode := GetLastError;
ErrorText := GetErrorText(ErrorCode);
end;
end;
そしてそれを正確に呼ぶ
procedure TForm1.Button3Click(Sender: TObject);
var
CAA: BOOL;
OS: TUsableInOS;
ErrorCode: DWORD;
ErrorText: string;
begin
CAA := False;
if bgSetDisableOverlappedContent(CAA, ErrorCode, ErrorText) then
ShowMessage('Success');
end;
しかし、次のコードで再度調べると
function bgGetDisableOverlappedContent(var CAA: BOOL; OS: TUsableInOS; ErrorCode: DWORD; ErrorText: string): Boolean;
begin
errorCode := ERROR_SUCCESS;
ErrorText := '';
os := tosVistaUp;
if not GetOSVersion >= 60 then
Exit;
Result := SystemParametersInfo(SPI_GETDISABLEOVERLAPPEDCONTENT, 0, @CAA, 0);
if not Result then
begin
ErrorCode := GetLastError;
ErrorText := GetErrorText(ErrorCode);
end;
end;
function GetOSVersion: Integer;
var
OSVersionInfo : TOSVersionInfo;
begin
Result:= 0;
FillChar(OsVersionInfo, Sizeof(OsVersionInfo), 0);
OSVersionInfo.dwOSVersionInfoSize := SizeOf(OSVersionInfo);
if GetVersionEx(OSVersionInfo) then
begin
if OSVersionInfo.dwPlatformId = VER_PLATFORM_WIN32_NT then
begin
if (OsVersionInfo.dwMajorVersion = 5) and ((OsVersionInfo.dwMinorVersion = 0)) then
Result:= 50; //2000
if (OsVersionInfo.dwMajorVersion = 5) and ((OsVersionInfo.dwMinorVersion = 1)) then
Result:= 51; //XP
if (OsVersionInfo.dwMajorVersion = 5) and ((OsVersionInfo.dwMinorVersion = 2)) then
Result:= 52; //2003, 2003 R2
if (OsVersionInfo.dwMajorVersion = 6) and ((OsVersionInfo.dwMinorVersion = 0)) then
Result:= 60; //Vista, Windows Server 2008
if (OsVersionInfo.dwMajorVersion = 6) and ((OsVersionInfo.dwMinorVersion = 1)) then
Result:= 61; //Server 2008 R2, 7
end;
end;
end;
CAA := False; を正確に設定しても、CAA の結果は再び True になります。私はWin 7に取り組んでいます。そして結果の結果:= SystemParametersInfo(SPI_SETDISABLEOVERLAPPEDCONTENT, 0, @CAA, 0); は True ですが、SPI_GETDISABLEOVERLAPPEDCONTENT は、正確に False に設定される前のステップであっても、CAA に対して True を返します。
procedure TForm1.Button3Click(Sender: TObject);
var
CAA: BOOL;
OS: TUsableInOS;
ErrorCode: DWORD;
ErrorText: string;
Res: Bool;
begin
CAA := False;
{ if bgSetDisableOverlappedContent(CAA, ErrorCode, ErrorText) then
ShowMessage('Success'); }
Res := SystemParametersInfo(SPI_SETDISABLEOVERLAPPEDCONTENT,
0,
@CAA,
0);
Res := SystemParametersInfo(SPI_GETDISABLEOVERLAPPEDCONTENT,
0,
@CAA,
0);
if Caa then
ShowMessage('True')
else
ShowMessage('False');
end;
CAAは真です。
何か考えはありますか?
よろしくお願いします