whats new ¦  programming tips ¦  indy articles ¦  intraweb articles ¦  informations ¦  links ¦  interviews
 misc ¦  tutorials ¦  Add&Win Game

Tips (1548)

Database (90)
Files (137)
Forms (107)
Graphic (116)
IDE (21)
Indy (5)
Internet / LAN (131)
IntraWeb (0)
Math (76)
Misc (127)
Multimedia (45)
Objects/
ActiveX (51)

OpenTools API (3)
Printing (35)
Strings (83)
System (268)
VCL (243)

Top15

Tips sort by
component


Search Tip

Add new Tip

Add&Win Game

Advertising

31 Visitors Online


 
...check if the ActiveDesktop is activ?
Autor: Thomas Stutz
[ Print tip ]  

Tip Rating (4):  
     


uses
  
ComObj, ShlObj, ActiveX;

// Check if Active Desktop is enabled (1)
function IsActiveDeskTopOn: Boolean;
var
  
h: HWND;
begin
  
h := FindWindow('Progman', nil);
  h := FindWindowEx(h, 0, 'SHELLDLL_DefView', nil);
  h := FindWindowEx(h, 0, 'Internet Explorer_Server', nil);
  Result := h <> 0;
end;


// Check if Active Desktop is enabled (2)
function IsActiveDesktopEnable: Boolean;
const
  
CLSID_ActiveDesktop: TGUID = '{75048700-EF1F-11D0-9888-006097DEACF9}';
var
  
ActiveDesk: IActiveDesktop;
  ComponentsOpt: TComponentsOpt;
  hr: HRESULT;
  dwReserved: DWORD;
begin
  
ZeroMemory(@ComponentsOpt, SizeOf(TComponentsOpt));
  ComponentsOpt.dwSize := SizeOf(TComponentsOpt);
  hr := CoCreateInstance(CLSID_ActiveDesktop, nil, CLSCTX_INPROC_SERVER,
    CLSID_ActiveDesktop, ActiveDesk);
  if SUCCEEDED(hr) then
  begin
    
hr := ActiveDesk.GetDesktopItemOptions(ComponentsOpt, dwReserved);
    // ActiveDesk._Release;
  
end;
  Result := ComponentsOpt.fActiveDesktop;
end;

 

Rate this tip:

poor
very good


Copyright © by SwissDelphiCenter.ch
All trademarks are the sole property of their respective owners