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// 6 april 2015
#include "uipriv_windows.hpp"
HINSTANCE hInstance;
int nCmdShow;
HFONT hMessageFont;
// LONGTERM needed?
HBRUSH hollowBrush;
// the returned pointer is actually to the second character
// if the first character is - then free, otherwise don't
static const char *initerr(const char *message, const WCHAR *label, DWORD value)
{
WCHAR *sysmsg;
BOOL hassysmsg;
WCHAR *wmessage;
WCHAR *wout;
char *out;
hassysmsg = FormatMessageW(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, NULL, value, 0, (LPWSTR) (&sysmsg), 0, NULL) != 0;
if (!hassysmsg)
sysmsg = L"";
wmessage = toUTF16(message + 1);
wout = strf(L"-error initializing libui: %s; code %I32d (0x%08I32X) %s",
wmessage,
value, value,
sysmsg);
uiFree(wmessage);
if (hassysmsg)
LocalFree(sysmsg); // ignore error
out = toUTF8(wout);
uiFree(wout);
return out + 1;
}
#define ieLastErr(msg) initerr("=" msg, L"GetLastError() ==", GetLastError())
#define ieHRESULT(msg, hr) initerr("=" msg, L"HRESULT", (DWORD) hr)
// LONGTERM make common
uiInitOptions options;
#define wantedICCClasses ( \
ICC_STANDARD_CLASSES | /* user32.dll controls */ \
ICC_PROGRESS_CLASS | /* progress bars */ \
ICC_TAB_CLASSES | /* tabs */ \
ICC_LISTVIEW_CLASSES | /* table headers */ \
ICC_UPDOWN_CLASS | /* spinboxes */ \
ICC_BAR_CLASSES | /* trackbar */ \
ICC_DATE_CLASSES | /* date/time picker */ \
0)
const char *uiInit(uiInitOptions *o)
{
STARTUPINFOW si;
const char *ce;
HICON hDefaultIcon;
HCURSOR hDefaultCursor;
NONCLIENTMETRICSW ncm;
INITCOMMONCONTROLSEX icc;
HRESULT hr;
options = *o;
initAlloc();
nCmdShow = SW_SHOWDEFAULT;
GetStartupInfoW(&si);
if ((si.dwFlags & STARTF_USESHOWWINDOW) != 0)
nCmdShow = si.wShowWindow;
// LONGTERM set DPI awareness
hDefaultIcon = LoadIconW(NULL, IDI_APPLICATION);
if (hDefaultIcon == NULL)
return ieLastErr("loading default icon for window classes");
hDefaultCursor = LoadCursorW(NULL, IDC_ARROW);
if (hDefaultCursor == NULL)
return ieLastErr("loading default cursor for window classes");
ce = initUtilWindow(hDefaultIcon, hDefaultCursor);
if (ce != NULL)
return initerr(ce, L"GetLastError() ==", GetLastError());
if (registerWindowClass(hDefaultIcon, hDefaultCursor) == 0)
return ieLastErr("registering uiWindow window class");
ZeroMemory(&ncm, sizeof (NONCLIENTMETRICSW));
ncm.cbSize = sizeof (NONCLIENTMETRICSW);
if (SystemParametersInfoW(SPI_GETNONCLIENTMETRICS, sizeof (NONCLIENTMETRICSW), &ncm, sizeof (NONCLIENTMETRICSW)) == 0)
return ieLastErr("getting default fonts");
hMessageFont = CreateFontIndirectW(&(ncm.lfMessageFont));
if (hMessageFont == NULL)
return ieLastErr("loading default messagebox font; this is the default UI font");
if (initContainer(hDefaultIcon, hDefaultCursor) == 0)
return ieLastErr("initializing uiWindowsMakeContainer() window class");
hollowBrush = (HBRUSH) GetStockObject(HOLLOW_BRUSH);
if (hollowBrush == NULL)
return ieLastErr("getting hollow brush");
ZeroMemory(&icc, sizeof (INITCOMMONCONTROLSEX));
icc.dwSize = sizeof (INITCOMMONCONTROLSEX);
icc.dwICC = wantedICCClasses;
if (InitCommonControlsEx(&icc) == 0)
return ieLastErr("initializing Common Controls");
hr = CoInitialize(NULL);
if (hr != S_OK && hr != S_FALSE)
return ieHRESULT("initializing COM", hr);
// LONGTERM initialize COM security
// LONGTERM (windows vista) turn off COM exception handling
hr = initDraw();
if (hr != S_OK)
return ieHRESULT("initializing Direct2D", hr);
hr = initDrawText();
if (hr != S_OK)
return ieHRESULT("initializing DirectWrite", hr);
if (registerAreaClass(hDefaultIcon, hDefaultCursor) == 0)
return ieLastErr("registering uiArea window class");
if (registerMessageFilter() == 0)
return ieLastErr("registering libui message filter");
if (registerD2DScratchClass(hDefaultIcon, hDefaultCursor) == 0)
return ieLastErr("initializing D2D scratch window class");
return NULL;
}
void uiUninit(void)
{
uninitMenus();
unregisterD2DScratchClass();
unregisterMessageFilter();
unregisterArea();
uninitDrawText();
uninitDraw();
CoUninitialize();
if (DeleteObject(hollowBrush) == 0)
logLastError(L"error freeing hollow brush");
uninitContainer();
if (DeleteObject(hMessageFont) == 0)
logLastError(L"error deleting control font");
unregisterWindowClass();
// no need to delete the default icon or cursor; see http://stackoverflow.com/questions/30603077/
uninitUtilWindow();
uninitAlloc();
}
void uiFreeInitError(const char *err)
{
if (*(err - 1) == '-')
uiFree((void *) (err - 1));
}
BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
{
if (fdwReason == DLL_PROCESS_ATTACH)
hInstance = hinstDLL;
return TRUE;
}
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