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Remove dynamic loading of Display APIs.

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ChangeDisplaySettingsEx, EnumDisplayMonitors, MonitorFromPoint, MonitorFromWindow and GetMonitorInfo are available since Win2k.
This commit is contained in:
Tobias Taschner
2015-09-16 00:19:41 +02:00
parent 615b932f72
commit f936a54000
1 changed files with 5 additions and 78 deletions
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83
src/msw/display.cpp
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@@ -70,32 +70,6 @@
static const wxChar displayDllName[] = wxT("user32.dll"); static const wxChar displayDllName[] = wxT("user32.dll");
// ----------------------------------------------------------------------------
// typedefs for dynamically loaded Windows functions
// ----------------------------------------------------------------------------
typedef LONG (WINAPI *ChangeDisplaySettingsEx_t)(LPCTSTR lpszDeviceName,
LPDEVMODE lpDevMode,
HWND hwnd,
DWORD dwFlags,
LPVOID lParam);
typedef BOOL (WINAPI *EnumDisplayMonitors_t)(HDC,LPCRECT,MONITORENUMPROC,LPARAM);
typedef HMONITOR (WINAPI *MonitorFromPoint_t)(POINT,DWORD);
typedef HMONITOR (WINAPI *MonitorFromWindow_t)(HWND,DWORD);
typedef BOOL (WINAPI *GetMonitorInfo_t)(HMONITOR,LPMONITORINFO);
// emulation of ChangeDisplaySettingsEx() for Win95
LONG WINAPI ChangeDisplaySettingsExForWin95(LPCTSTR WXUNUSED(lpszDeviceName),
LPDEVMODE lpDevMode,
HWND WXUNUSED(hwnd),
DWORD dwFlags,
LPVOID WXUNUSED(lParam))
{
return ::ChangeDisplaySettings(lpDevMode, dwFlags);
}
// ---------------------------------------------------------------------------- // ----------------------------------------------------------------------------
// wxDisplayMSW declaration // wxDisplayMSW declaration
// ---------------------------------------------------------------------------- // ----------------------------------------------------------------------------
@@ -148,12 +122,6 @@ private:
WX_DEFINE_ARRAY(HMONITOR, wxMonitorHandleArray); WX_DEFINE_ARRAY(HMONITOR, wxMonitorHandleArray);
// functions dynamically bound by wxDisplayFactoryMSW ctor.
static MonitorFromPoint_t gs_MonitorFromPoint = NULL;
static MonitorFromWindow_t gs_MonitorFromWindow = NULL;
static GetMonitorInfo_t gs_GetMonitorInfo = NULL;
static EnumDisplayMonitors_t gs_EnumDisplayMonitors = NULL;
class wxDisplayFactoryMSW : public wxDisplayFactory class wxDisplayFactoryMSW : public wxDisplayFactory
{ {
public: public:
@@ -236,7 +204,7 @@ wxDisplayFactoryMSW* wxDisplayFactoryMSW::ms_factory = NULL;
bool wxDisplayMSW::GetMonInfo(MONITORINFOEX& monInfo) const bool wxDisplayMSW::GetMonInfo(MONITORINFOEX& monInfo) const
{ {
if ( !gs_GetMonitorInfo(m_hmon, &monInfo) ) if ( !::GetMonitorInfo(m_hmon, &monInfo) )
{ {
wxLogLastError(wxT("GetMonitorInfo")); wxLogLastError(wxT("GetMonitorInfo"));
return false; return false;
@@ -390,30 +358,8 @@ bool wxDisplayMSW::ChangeMode(const wxVideoMode& mode)
} }
// get pointer to the function dynamically
//
// we're only called from the main thread, so it's ok to use static
// variable
static ChangeDisplaySettingsEx_t pfnChangeDisplaySettingsEx = NULL;
if ( !pfnChangeDisplaySettingsEx )
{
wxDynamicLibrary dllDisplay(displayDllName, wxDL_VERBATIM | wxDL_QUIET);
if ( dllDisplay.IsLoaded() )
{
wxDL_INIT_FUNC_AW(pfn, ChangeDisplaySettingsEx, dllDisplay);
}
//else: huh, no this DLL must always be present, what's going on??
if ( !pfnChangeDisplaySettingsEx )
{
// we must be under Win95 and so there is no multiple monitors
// support anyhow
pfnChangeDisplaySettingsEx = ChangeDisplaySettingsExForWin95;
}
}
// do change the mode // do change the mode
switch ( pfnChangeDisplaySettingsEx switch ( ::ChangeDisplaySettingsEx
( (
GetName().t_str(), // display name GetName().t_str(), // display name
pDevMode, // dev mode or NULL to reset pDevMode, // dev mode or NULL to reset
@@ -478,25 +424,6 @@ wxDisplayFactoryMSW::wxDisplayFactoryMSW()
m_hiddenHwnd = NULL; m_hiddenHwnd = NULL;
m_hiddenClass = NULL; m_hiddenClass = NULL;
if ( gs_MonitorFromPoint==NULL || gs_MonitorFromWindow==NULL
|| gs_GetMonitorInfo==NULL || gs_EnumDisplayMonitors==NULL )
{
// First initialization, or last initialization failed.
wxDynamicLibrary dllDisplay(displayDllName, wxDL_VERBATIM | wxDL_QUIET);
wxDL_INIT_FUNC(gs_, MonitorFromPoint, dllDisplay);
wxDL_INIT_FUNC(gs_, MonitorFromWindow, dllDisplay);
wxDL_INIT_FUNC_AW(gs_, GetMonitorInfo, dllDisplay);
wxDL_INIT_FUNC(gs_, EnumDisplayMonitors, dllDisplay);
// we can safely let dllDisplay go out of scope, the DLL itself will
// still remain loaded as all programs link to it statically anyhow
}
if ( gs_MonitorFromPoint==NULL || gs_MonitorFromWindow==NULL
|| gs_GetMonitorInfo==NULL || gs_EnumDisplayMonitors==NULL )
return;
DoRefreshMonitors(); DoRefreshMonitors();
// Also create a hidden window to listen for WM_SETTINGCHANGE that we // Also create a hidden window to listen for WM_SETTINGCHANGE that we
@@ -535,7 +462,7 @@ void wxDisplayFactoryMSW::DoRefreshMonitors()
{ {
m_displays.Clear(); m_displays.Clear();
if ( !gs_EnumDisplayMonitors(NULL, NULL, MultimonEnumProc, (LPARAM)this) ) if ( !::EnumDisplayMonitors(NULL, NULL, MultimonEnumProc, (LPARAM)this) )
{ {
wxLogLastError(wxT("EnumDisplayMonitors")); wxLogLastError(wxT("EnumDisplayMonitors"));
} }
@@ -586,14 +513,14 @@ int wxDisplayFactoryMSW::GetFromPoint(const wxPoint& pt)
pt2.x = pt.x; pt2.x = pt.x;
pt2.y = pt.y; pt2.y = pt.y;
return FindDisplayFromHMONITOR(gs_MonitorFromPoint(pt2, return FindDisplayFromHMONITOR(::MonitorFromPoint(pt2,
MONITOR_DEFAULTTONULL)); MONITOR_DEFAULTTONULL));
} }
int wxDisplayFactoryMSW::GetFromWindow(const wxWindow *window) int wxDisplayFactoryMSW::GetFromWindow(const wxWindow *window)
{ {
#ifdef __WXMSW__ #ifdef __WXMSW__
return FindDisplayFromHMONITOR(gs_MonitorFromWindow(GetHwndOf(window), return FindDisplayFromHMONITOR(::MonitorFromWindow(GetHwndOf(window),
MONITOR_DEFAULTTONULL)); MONITOR_DEFAULTTONULL));
#else #else
const wxSize halfsize = window->GetSize() / 2; const wxSize halfsize = window->GetSize() / 2;