// This function assigns icons to the button.
// Any previous icon or bitmap will be removed.
//
// Parameters:
// [IN] hIconIn
// Handle fo the icon to show when the mouse is over the button.
// Pass NULL to remove any icon from the button.
// [IN] hIconOut
// Handle to the icon to show when the mouse is outside the button.
// Can be NULL.
//
// Return value:
// BTNST_OK
// Function executed successfully.
// BTNST_INVALIDRESOURCE
// Failed loading the specified resource.
//
DWORD CButtonST::SetIcon(HICON hIconIn, HICON hIconOut)
{
BOOL bRetValue;
ICONINFO ii;
// Free any loaded resource
FreeResources();
if (hIconIn)
{
// Icon when mouse over button?
m_csIcons[0].hIcon = hIconIn;
// Get icon dimension
::ZeroMemory(&ii, sizeof(ICONINFO));
bRetValue = ::GetIconInfo(hIconIn, &ii);
if (bRetValue == FALSE)
{
FreeResources();
return BTNST_INVALIDRESOURCE;
} // if
m_csIcons[0].dwWidth = (DWORD)(ii.xHotspot * 2);
m_csIcons[0].dwHeight = (DWORD)(ii.yHotspot * 2);
::DeleteObject(ii.hbmMask);
::DeleteObject(ii.hbmColor);
// Icon when mouse outside button?
if (hIconOut)
{
if (hIconOut == BTNST_AUTO_GRAY)
{
hIconOut = CreateGrayscaleIcon(hIconIn);
} // if
m_csIcons[1].hIcon = hIconOut;
// Get icon dimension
::ZeroMemory(&ii, sizeof(ICONINFO));
bRetValue = ::GetIconInfo(hIconOut, &ii);
if (bRetValue == FALSE)
{
FreeResources();
return BTNST_INVALIDRESOURCE;
} // if
m_csIcons[1].dwWidth = (DWORD)(ii.xHotspot * 2);
m_csIcons[1].dwHeight = (DWORD)(ii.yHotspot * 2);
::DeleteObject(ii.hbmMask);
::DeleteObject(ii.hbmColor);
} // if
} // if
Invalidate();
return BTNST_OK;
} // End of SetIcon
//=============================================================================
// Sets icon from HICON
CXButtonXP& CXButtonXP::SetIcon(HICON hIcon, ICON_ALIGNMENT ia /*= LEFT*/)
//=============================================================================
{
if (m_hIcon)
DestroyIcon(m_hIcon);
m_hIcon = hIcon;
TRACE(_T("m_hIcon=%X\n"), m_hIcon);
// create grayscale icon for disabled button
if (m_hGrayIcon)
DestroyIcon(m_hGrayIcon);
m_hGrayIcon = NULL;
if (hIcon)
m_hGrayIcon = CreateGrayscaleIcon(hIcon);
m_eIconAlignment = ia;
RedrawWindow();
return *this;
}
SIZE CHyperLink::GetFirstIcon()
{
HICON hIco = NULL;
ICONINFO icInfo = { 0 };
SIZE iconSz = { 0 };
if ((!m_bDisabled &&
((m_uShowIcon & SI_ICONUP_LEFT && !m_bMouseIn) ||
(m_uShowIcon & SI_ICONHOVER_LEFT && m_bMouseIn && !m_bMouseDown) ||
(m_uShowIcon & SI_ICONDOWN_LEFT && m_bMouseDown && m_bMouseIn) ||
(m_uShowIcon & SI_ICONUP_RIGHT && !m_bMouseIn) ||
(m_uShowIcon & SI_ICONHOVER_RIGHT && m_bMouseIn && !m_bMouseDown) ||
(m_uShowIcon & SI_ICONDOWN_RIGHT && m_bMouseDown && m_bMouseIn))
) ||
(m_uShowIcon & SI_ICONDISABLED_LEFT && m_bDisabled) ||
(m_uShowIcon & SI_ICONDISABLED_RIGHT && m_bDisabled))
{
if (m_bDisabled)
{
if (m_hIconDisabled == NULL && m_bAutoGenerateDisabled)
{
HICON hico = m_hIconUp;
if (hico == NULL)
{
hico = m_hIconHover;
}
if (hico == NULL)
{
hico = m_hIconDown;
}
if (hico != NULL)
{
m_hIconDisabled = CreateGrayscaleIcon(hico);
m_bAutoGenerated = TRUE;
}
}
hIco = m_hIconDisabled;
}
else if (!m_bDisabled && m_bMouseIn && !m_bMouseDown)
{
hIco = m_hIconHover;
}
else if (!m_bDisabled && m_bMouseIn && m_bMouseDown)
{
hIco = m_hIconDown;
}
else if (!m_bDisabled && !m_bMouseIn)
{
hIco = m_hIconUp;
}
if (hIco != NULL)
{
GetIconInfo(hIco, &icInfo);
iconSz.cx = icInfo.xHotspot*2;
iconSz.cy = icInfo.yHotspot*2;
}
}
return iconSz;
}
