HRESULT DrawThemesPart(HDC hDC, int iPartId, int iStateId, LPCSTR uiPartNameID, LPRECT prcBox)
{
if(!IsWinXP()) return E_FAIL;
HINSTANCE hDll=LoadLibrary(CString((LPCTSTR)IDS_UTIL_UXTHEME)); // 'UxTheme.dll'
if(!hDll) return E_FAIL;
BOOL (PASCAL* pfnIsThemeActive)(); UINT hTheme=0;
(FARPROC&)pfnIsThemeActive=GetProcAddress(hDll,IDS_UTIL_THEMEACT); // 'IsThemeActive'
HRESULT hResult=E_FAIL;
if(pfnIsThemeActive && pfnIsThemeActive())
{
CString sPartName((LPCTSTR)uiPartNameID);
if(sPartName.GetLength()>0)
{
WCHAR swPartName[WPART_NAME_SZ];
#if !defined(UNICODE) && !defined(_UNICODE)
MultiByteToWideChar(CP_ACP,0,(LPCSTR)sPartName,-1,swPartName,sizeof(swPartName)/sizeof(WCHAR));
#else
_tcscpy(swPartName, sPartName.GetBuffer());
#endif
UINT (PASCAL* pfnOpenThemeData)(HWND hwnd, LPCWSTR pszClassList);
(FARPROC&)pfnOpenThemeData=GetProcAddress(hDll,IDS_UTIL_THEMEOPN);// 'OpenThemeData'
if(pfnOpenThemeData && (hTheme=pfnOpenThemeData(NULL, swPartName))!=0)
{
UINT (PASCAL* pfnDrawThemeBackground)(UINT htheme,HDC hdc,int iPartID,int iStateID,const RECT* prcBx,const RECT* prcClip);
(FARPROC&)pfnDrawThemeBackground=GetProcAddress(hDll,IDS_UTIL_THEMEBCKG); // 'DrawThemeBackground'
if(pfnDrawThemeBackground)
hResult=pfnDrawThemeBackground(hTheme, hDC, iPartId, iStateId, prcBox, NULL);
}
}
}
FreeLibrary(hDll);
return hResult;
}
//----------------------------------------------------------------------------------------------------------
BOOL IsThemeActiveEx()
{ // check theme activity always (could change during application running)
HINSTANCE hDll=LoadLibrary(CString((LPCTSTR)IDS_UTIL_UXTHEME)); // 'UxTheme.dll'
if(hDll==NULL) return FALSE; // the DLL won't be available on anything except Windows XP
UINT (PASCAL *pfnIsThemeActive)();
(FARPROC&)pfnIsThemeActive=GetProcAddress(hDll,IDS_UTIL_THEMEACT); // 'IsThemeActive'
UINT uiThemeActive=0;
if(pfnIsThemeActive)
uiThemeActive=pfnIsThemeActive();
FreeLibrary(hDll);
return uiThemeActive?TRUE:FALSE;
}
/**
* update system's state (theme status, aero status, DWM check...
*
* called when windows broadcasts things like WM_THEMECHANGED or
* WM_DWMCOMPOSITIONCHANGED
*/
void API::updateState()
{
BOOL result = FALSE;
::ZeroMemory(&sysState, sizeof(TSysState));
if(sysConfig.uxThemeValid)
sysState.isThemed = pfnIsThemeActive() ? true : false;
if(sysConfig.isVistaPlus) {
sysState.isDwmActive = (pfnDwmIsCompositionEnabled && (pfnDwmIsCompositionEnabled(&result) == S_OK) && result) ? true : false;
sysState.isAero = /* (CSkin::m_skinEnabled == false) && */ cfg::getByte("CLUI", "useAero", 1) /* && CSkin::m_fAeroSkinsValid */ && sysState.isDwmActive;
}
}
/**
* update system's state (theme status, aero status, DWM check...
*
* called when windows broadcasts things like WM_THEMECHANGED or
* WM_DWMCOMPOSITIONCHANGED
*/
void Api::updateState()
{
BOOL result = FALSE;
::ZeroMemory(&sysState, sizeof(TSysState));
sysState.isThemed = pfnIsThemeActive() ? true : false;
if(sysConfig.isVistaPlus) {
sysState.isDwmActive = (pfnDwmIsCompositionEnabled && (pfnDwmIsCompositionEnabled(&result) == S_OK) && result) ? true : false;
sysState.isAero = cfg::getByte(SKIN_DB_MODULE, "fUseAero", 1) && sysState.isDwmActive;
}
else
sysState.isAero = sysState.isDwmActive = false;
}
BOOL CThemeHelperST::IsThemeActive()
{
if(pfnIsThemeActive != NULL) return pfnIsThemeActive();
return FALSE;
}
