bool wxFrame::Create(wxWindow *parent,
wxWindowID id,
const wxString& title,
const wxPoint& pos,
const wxSize& size,
long style,
const wxString& name)
{
if ( !wxTopLevelWindow::Create(parent, id, title, pos, size, style, name) )
return false;
SetOwnBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_APPWORKSPACE));
#if wxUSE_TASKBARBUTTON
static bool s_taskbarButtonCreatedMsgRegistered = false;
if ( !s_taskbarButtonCreatedMsgRegistered )
{
s_taskbarButtonCreatedMsgRegistered = true;
wxMsgTaskbarButtonCreated =
::RegisterWindowMessage(wxT("TaskbarButtonCreated"));
// In case the application is run elevated, allow the
// TaskbarButtonCreated and WM_COMMAND messages through.
#if wxUSE_DYNLIB_CLASS
typedef BOOL (WINAPI *ChangeWindowMessageFilter_t)(UINT message,
DWORD dwFlag);
wxDynamicLibrary dllUser32(wxT("user32.dll"));
ChangeWindowMessageFilter_t pfnChangeWindowMessageFilter = NULL;
wxDL_INIT_FUNC(pfn, ChangeWindowMessageFilter, dllUser32);
if ( pfnChangeWindowMessageFilter )
{
pfnChangeWindowMessageFilter(wxMsgTaskbarButtonCreated,
wxMSGFLT_ADD);
pfnChangeWindowMessageFilter(WM_COMMAND, wxMSGFLT_ADD);
}
#else
ChangeWindowMessageFilter(wxMsgTaskbarButtonCreated, wxMSGFLT_ADD);
ChangeWindowMessageFilter(WM_COMMAND, wxMSGFLT_ADD);
#endif // wxUSE_DYNLIB_CLASS
}
#endif // wxUSE_TASKBARBUTTON
return true;
}
bool wxTopLevelWindowMSW::SetTransparent(wxByte alpha)
{
#if wxUSE_DYNLIB_CLASS
typedef DWORD (WINAPI *PSETLAYEREDWINDOWATTR)(HWND, DWORD, BYTE, DWORD);
static PSETLAYEREDWINDOWATTR
pSetLayeredWindowAttributes = (PSETLAYEREDWINDOWATTR)-1;
if ( pSetLayeredWindowAttributes == (PSETLAYEREDWINDOWATTR)-1 )
{
wxDynamicLibrary dllUser32(wxT("user32.dll"));
// use RawGetSymbol() and not GetSymbol() to avoid error messages under
// Windows 95: there is nothing the user can do about this anyhow
pSetLayeredWindowAttributes = (PSETLAYEREDWINDOWATTR)
dllUser32.RawGetSymbol(wxT("SetLayeredWindowAttributes"));
// it's ok to destroy dllUser32 here, we link statically to user32.dll
// anyhow so it won't be unloaded
}
if ( !pSetLayeredWindowAttributes )
return false;
#endif // wxUSE_DYNLIB_CLASS
LONG exstyle = GetWindowLong(GetHwnd(), GWL_EXSTYLE);
// if setting alpha to fully opaque then turn off the layered style
if (alpha == 255)
{
SetWindowLong(GetHwnd(), GWL_EXSTYLE, exstyle & ~WS_EX_LAYERED);
Refresh();
return true;
}
#if wxUSE_DYNLIB_CLASS
// Otherwise, set the layered style if needed and set the alpha value
if ((exstyle & WS_EX_LAYERED) == 0 )
SetWindowLong(GetHwnd(), GWL_EXSTYLE, exstyle | WS_EX_LAYERED);
if ( pSetLayeredWindowAttributes(GetHwnd(), 0, (BYTE)alpha, LWA_ALPHA) )
return true;
#endif // wxUSE_DYNLIB_CLASS
return false;
}
void wxTopLevelWindowMSW::RequestUserAttention(int flags)
{
#if defined(FLASHW_STOP) && wxUSE_DYNLIB_CLASS
// available in the headers, check if it is supported by the system
typedef BOOL (WINAPI *FlashWindowEx_t)(FLASHWINFO *pfwi);
static FlashWindowEx_t s_pfnFlashWindowEx = NULL;
if ( !s_pfnFlashWindowEx )
{
wxDynamicLibrary dllUser32(wxT("user32.dll"));
s_pfnFlashWindowEx = (FlashWindowEx_t)
dllUser32.GetSymbol(wxT("FlashWindowEx"));
// we can safely unload user32.dll here, it's going to remain loaded as
// long as the program is running anyhow
}
if ( s_pfnFlashWindowEx )
{
WinStruct<FLASHWINFO> fwi;
fwi.hwnd = GetHwnd();
fwi.dwFlags = FLASHW_ALL;
if ( flags & wxUSER_ATTENTION_INFO )
{
// just flash a few times
fwi.uCount = 3;
}
else // wxUSER_ATTENTION_ERROR
{
// flash until the user notices it
fwi.dwFlags |= FLASHW_TIMERNOFG;
}
s_pfnFlashWindowEx(&fwi);
}
else // FlashWindowEx() not available
#endif // FlashWindowEx() defined
{
wxUnusedVar(flags);
#ifndef __WXWINCE__
::FlashWindow(GetHwnd(), TRUE);
#endif // __WXWINCE__
}
}
bool wxChoice::MSWGetComboBoxInfo(tagCOMBOBOXINFO* info) const
{
// TODO-Win9x: Get rid of this once we officially drop support for Win9x
// and just call the function directly.
#if wxUSE_DYNLIB_CLASS
typedef BOOL (WINAPI *GetComboBoxInfo_t)(HWND, tagCOMBOBOXINFO*);
static GetComboBoxInfo_t s_pfnGetComboBoxInfo = NULL;
static bool s_triedToLoad = false;
if ( !s_triedToLoad )
{
s_triedToLoad = true;
wxLoadedDLL dllUser32("user32.dll");
wxDL_INIT_FUNC(s_pfn, GetComboBoxInfo, dllUser32);
}
if ( s_pfnGetComboBoxInfo )
return (*s_pfnGetComboBoxInfo)(GetHwnd(), info) != 0;
#endif // wxUSE_DYNLIB_CLASS
return false;
}
WXHWND wxComboBox::GetEditHWNDIfAvailable() const
{
#if wxUSE_DYNLIB_CLASS
#if defined(WINVER) && WINVER >= 0x0500
typedef BOOL (WINAPI *GetComboBoxInfo_t)(HWND, COMBOBOXINFO*);
static GetComboBoxInfo_t s_pfnGetComboBoxInfo = NULL;
static bool s_triedToLoad = false;
if ( !s_triedToLoad )
{
s_triedToLoad = true;
wxLoadedDLL dllUser32("user32.dll");
wxDL_INIT_FUNC(s_pfn, GetComboBoxInfo, dllUser32);
}
if ( s_pfnGetComboBoxInfo )
{
WinStruct<COMBOBOXINFO> info;
(*s_pfnGetComboBoxInfo)(GetHwnd(), &info);
return info.hwndItem;
}
#endif // WINVER >= 0x0500
#endif // wxUSE_DYNLIB_CLASS
if (HasFlag(wxCB_SIMPLE))
{
POINT pt;
pt.x = pt.y = 4;
return (WXHWND) ::ChildWindowFromPoint(GetHwnd(), pt);
}
// notice that a slightly safer alternative could be to use FindWindowEx()
// but it's not available under WinCE so just take the first child for now
// to keep one version of the code for all platforms and fix it later if
// problems are discovered
// we assume that the only child of the combobox is the edit window
return (WXHWND)::GetWindow(GetHwnd(), GW_CHILD);
}
