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// 6 april 2015
#include "uipriv_windows.h"
HINSTANCE hInstance;
int nCmdShow;
HFONT hMessageFont;
HWND initialParent;
struct uiInitError {
char *msg;
char failbuf[256];
};
static uiInitError *loadLastError(uiInitError *err, const char *message)
{
DWORD le;
le = GetLastError();
// TODO FormatMessageW() it
// TODO make sure argument is right; _snprintf_s() isn't supported on Windows XP
snprintf(err->failbuf, 256, "error %s (last error %I32u)", message, le);
err->msg = err->failbuf;
return err;
}
uiInitError *uiInit(uiInitOptions *o)
{
uiInitError *err;
STARTUPINFOW si;
const char *ce;
HICON hDefaultIcon;
HCURSOR hDefaultCursor;
NONCLIENTMETRICSW ncm;
err = uiNew(uiInitError);
hInstance = GetModuleHandle(NULL);
if (hInstance == NULL)
return loadLastError(err, "getting program HINSTANCE");
nCmdShow = SW_SHOWDEFAULT;
GetStartupInfoW(&si);
if ((si.dwFlags & STARTF_USESHOWWINDOW) != 0)
nCmdShow = si.wShowWindow;
// TODO add "in initCommonControls()" to each of the messages this returns
ce = initCommonControls();
if (ce != NULL)
return loadLastError(err, ce);
hDefaultIcon = LoadIconW(NULL, IDI_APPLICATION);
if (hDefaultIcon == NULL)
return loadLastError(err, "loading default icon for window classes");
hDefaultCursor = LoadCursorW(NULL, IDC_ARROW);
if (hDefaultCursor == NULL)
return loadLastError(err, "loading default cursor for window classes");
if (registerWindowClass(hDefaultIcon, hDefaultCursor) == 0)
return loadLastError(err, "registering uiWindow window class");
ZeroMemory(&ncm, sizeof (NONCLIENTMETRICSW));
ncm.cbSize = sizeof (NONCLIENTMETRICSW);
if (SystemParametersInfoW(SPI_GETNONCLIENTMETRICS, sizeof (NONCLIENTMETRICSW), &ncm, sizeof (NONCLIENTMETRICSW)) == 0)
return loadLastError(err, "getting default fonts");
hMessageFont = CreateFontIndirectW(&(ncm.lfMessageFont));
if (hMessageFont == NULL)
return loadLastError(err, "loading default messagebox font; this is the default UI font");
// give each control a reasonable initial parent
// don't free the initial parent!
// TODO tune this better; it shouldn't be closed, for instance
initialParent = (HWND) uiWindowHandle(uiNewWindow("", 0, 0));
uiFree(err);
return NULL;
}
const char *uiInitErrorMessage(uiInitError *err)
{
return err->msg;
}
void uiInitErrorFree(uiInitError *err)
{
if (err->msg != err->failbuf)
uiFree(err->msg);
uiFree(err);
}
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