[英]How to detect Windows Aero theme on Delphi 7?
您如何通過Delphi 7上的代碼檢測到用戶正在其操作系統上運行Windows Aero主題?
我們需要使用的功能是Dwmapi.DwmIsCompositionEnabled
,但該功能未包含在Delphi 7附帶的Windows標頭轉換中,該功能已在Delphi 7之后發布的Vista中添加。此外,它還會使Windows XP上的應用程序崩潰-請在之后調用它檢查if Win32MajorVersion >= 6
。
function IsAeroEnabled: Boolean;
type
TDwmIsCompositionEnabledFunc = function(out pfEnabled: BOOL): HRESULT; stdcall;
var
IsEnabled: BOOL;
ModuleHandle: HMODULE;
DwmIsCompositionEnabledFunc: TDwmIsCompositionEnabledFunc;
begin
Result := False;
if Win32MajorVersion >= 6 then // Vista or Windows 7+
begin
ModuleHandle := LoadLibrary('dwmapi.dll');
if ModuleHandle <> 0 then
try
@DwmIsCompositionEnabledFunc := GetProcAddress(ModuleHandle, 'DwmIsCompositionEnabled');
if Assigned(DwmIsCompositionEnabledFunc) then
if DwmIsCompositionEnabledFunc(IsEnabled) = S_OK then
Result := IsEnabled;
finally
FreeLibrary(ModuleHandle);
end;
end;
end;
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