HICON CMeterIcon::CreateMeterIcon(int *pBarData)
// the returned icon must be cleaned up using DestroyIcon()
{// begin CreateMeterIcon
ICONINFO iiNewIcon;
iiNewIcon.fIcon = true; // set that it is an icon
// create DC's
HDC hScreenDC = ::GetDC(NULL);
HDC hIconDC = CreateCompatibleDC(hScreenDC);
HDC hMaskDC = CreateCompatibleDC(hScreenDC);
if(hScreenDC == NULL)
{// begin error check
return NULL;
}// end error check
if(hIconDC == NULL)
{// begin error check
return NULL;
}// end error check
if(hMaskDC == NULL)
{// begin error check
return NULL;
}// end error check
// load bitmaps
iiNewIcon.hbmColor = CreateCompatibleBitmap(hScreenDC,m_sDimensions.cx,m_sDimensions.cy);
if(iiNewIcon.hbmColor == NULL)
{// begin error check
return NULL;
}// end error check
if(!::ReleaseDC(NULL,hScreenDC)) // release this ASAP
{// begin DC not released
return NULL;
}// end DC not released
iiNewIcon.hbmMask = CreateCompatibleBitmap(hMaskDC,m_sDimensions.cx,m_sDimensions.cy);
if(iiNewIcon.hbmMask == NULL)
{// begin error check
return NULL;
}// end error check
HGDIOBJ hOldIconDC = ::SelectObject(hIconDC,iiNewIcon.hbmColor);
if(hOldIconDC == NULL)
{// begin error check
return NULL;
}// end error check
HGDIOBJ hOldMaskDC = ::SelectObject(hMaskDC,iiNewIcon.hbmMask);
if(hOldMaskDC == NULL)
{// begin error check
return NULL;
}// end error check
// initilize the bitmaps
if(!BitBlt(hIconDC,0,0,m_sDimensions.cx,m_sDimensions.cy,NULL,0,0,BLACKNESS))
{// begin BitBlt failed
return NULL;
}// end BitBlt failed
if(!BitBlt(hMaskDC,0,0,m_sDimensions.cx,m_sDimensions.cy,NULL,0,0,WHITENESS))
{// begin BitBlt failed
return NULL;
}// end BitBlt failed
// draw the meters
for(int i = 0;i < m_nNumBars;i++)
if(DrawIconMeter(hIconDC,hMaskDC,pBarData[i],i) == false)
return false;
if(!DrawIconEx(hIconDC,0,0,m_hFrame,m_sDimensions.cx,m_sDimensions.cy,NULL,NULL,DI_NORMAL|DI_IMAGE))
{// begin error check
return NULL;
}// end error check
if(!DrawIconEx(hMaskDC,0,0,m_hFrame,m_sDimensions.cx,m_sDimensions.cy,NULL,NULL,DI_NORMAL|DI_MASK))
{// begin error check
return NULL;
}// end error check
// create icon
::SelectObject(hIconDC,hOldIconDC);
::SelectObject(hMaskDC,hOldMaskDC);
HICON hNewIcon = CreateIconIndirect(&iiNewIcon);
// cleanup
DeleteObject(iiNewIcon.hbmColor);
DeleteObject(iiNewIcon.hbmMask);
DeleteDC(hMaskDC);
DeleteDC(hIconDC);
return hNewIcon;
}// end CreateMeterIcon
HICON CreateMeterIcon(UINT nBaseIconID,
int cx, int cy,
int iMaxVal, int iCurVal,
COLORREF crMeter, COLORREF crBorder)
{
EMULE_TRY
ICONINFO iiNewIcon;
::ZeroMemory(&iiNewIcon,sizeof(ICONINFO));
iiNewIcon.fIcon = TRUE;
HICON hIcon = (HICON)::LoadImage(_Module.GetResourceInstance(),
MAKEINTRESOURCE(nBaseIconID),
IMAGE_ICON, cx, cy, LR_DEFAULTCOLOR);
if(hIcon == NULL)
return NULL;
HWND hDesktopWnd = ::GetDesktopWindow();
if(hDesktopWnd == NULL)
return hIcon;
HDC hDesktopDC = ::GetDC(hDesktopWnd);
if(hDesktopDC == NULL)
return hIcon;
HDC hIconDC = ::CreateCompatibleDC(hDesktopDC);
iiNewIcon.hbmColor = ::CreateCompatibleBitmap(hDesktopDC, cx, cy);
HBITMAP hOldIconBMP = (HBITMAP)::SelectObject(hIconDC, iiNewIcon.hbmColor);
::PatBlt(hIconDC, 0, 0, cx, cy, BLACKNESS);
::DrawIconEx(hIconDC, 0, 0, hIcon, cx, cy, 0, NULL, DI_NORMAL);
DrawIconMeter(hIconDC, iMaxVal, iCurVal, cx, cy, crMeter, crBorder);
iiNewIcon.hbmMask = ::CreateCompatibleBitmap(hDesktopDC, cx, cy);
::SelectObject(hIconDC, iiNewIcon.hbmMask);
::PatBlt(hIconDC, 0, 0, cx, cy, WHITENESS);
::DrawIconEx(hIconDC, 0, 0, hIcon, cx, cy, 0, NULL, DI_NORMAL);
DrawIconMeter(hIconDC, iMaxVal, iCurVal, cx, cy, 0, 0);
::SelectObject(hIconDC, hOldIconBMP);
::DestroyIcon(hIcon);
hIcon = CreateIconIndirect(&iiNewIcon);
//if(hIcon == NULL)
//{
// LPVOID lpMsgBuf;
// FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER |
// FORMAT_MESSAGE_FROM_SYSTEM |
// FORMAT_MESSAGE_IGNORE_INSERTS,
// NULL, GetLastError(),
// MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), // Default language
// (LPTSTR)&lpMsgBuf, 0, NULL);
// MessageBox(NULL, (LPCTSTR)lpMsgBuf, _T("Error"), MB_OK|MB_ICONINFORMATION);
// LocalFree(lpMsgBuf);
//}
::DeleteObject(iiNewIcon.hbmColor);
::DeleteObject(iiNewIcon.hbmMask);
::DeleteDC(hIconDC);
::ReleaseDC(hDesktopWnd, hDesktopDC);
return hIcon;
EMULE_CATCH
return NULL;
}
