Source code of Windows XP (NT5)
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#ifndef _ICONHLPR_HXX__
#define _ICONHLPR_HXX__
//____________________________________________________________________________
//
// Class: CIconHelper
//
// Purpose: A simple helper to handle icons for Task & Schedule pages.
//
// Interface: SetAppIcon - sets the application icon.
// SetJobIcon - sets the task icon.
//
// History: 6/26/1996 RaviR Created
//____________________________________________________________________________
class CIconHelper
{
public:
CIconHelper();
~CIconHelper();
void AddRef(void) { ++cRef; }
void Release(void) { --cRef; if (cRef == 0) delete this; }
void SetAppIcon(LPTSTR pszApp);
void SetJobIcon(BOOL fEnabled);
ULONG cRef;
CJobIcon JobIcon;
HICON hiconApp;
HICON hiconJob;
};
inline
CIconHelper::CIconHelper()
:
JobIcon(),
cRef(1),
hiconApp(NULL),
hiconJob(NULL)
{
}
inline
CIconHelper::~CIconHelper()
{
if (hiconApp != NULL)
{
DestroyIcon(hiconApp);
}
if (hiconJob != NULL)
{
DestroyIcon(hiconJob);
}
}
inline
void
CIconHelper::SetAppIcon(
LPTSTR pszApp)
{
if (hiconApp != NULL)
{
DestroyIcon(hiconApp);
}
TCHAR tszApp[MAX_PATH];
lstrcpyn(tszApp, pszApp, MAX_PATH);
DeleteQuotes(tszApp);
HICON hiconExtracted = (HICON) UlongToHandle(ExtractIconEx(tszApp, 0, &hiconApp, NULL, 1));
if (hiconExtracted == NULL || hiconApp == NULL)
{
hiconApp = GetDefaultAppIcon(TRUE);
}
}
inline
void
CIconHelper::SetJobIcon(
BOOL fEnabled)
{
if (hiconJob != NULL)
{
DestroyIcon(hiconJob);
}
hiconJob = JobIcon.OverlayStateIcon(hiconApp, fEnabled);
}
#endif // _ICONHLPR_HXX__