1 files changed, 87 insertions, 0 deletions
diff --git a/new/init_windows.c b/new/init_windows.c
new file mode 100644
index 0000000..07031aa
--- /dev/null
+++ b/new/init_windows.c
@@ -0,0 +1,87 @@
+// 6 april 2015
+#include "ui_windows.h"
+
+HINSTANCE hInstance;
+int nCmdShow;
+
+HFONT hMessageFont;
+
+struct uiInitError {
+	char *msg;
+	char failbuf[256];
+};
+
+static void loadLastError(uiInitError *err, char *message)
+{
+	DWORD le;
+
+	le = GetLastError();
+	// TODO FormatMessageW() it
+	_snprintf_s(err->failbuf, 256, _TRUNCATE, "error %s (last error %I32u)", message, le);
+	err->msg = err->failbuf;
+}
+
+uiInitError *uiInit(uiInitOptions *o)
+{
+	uiInitError *err;
+	STARTUPINFOW si;
+	HICON hDefaultIcon;
+	HCURSOR hDefaultCursor;
+	NONCLIENTMETRICSW ncm;
+
+	err = (uiInitError *) uiAlloc(sizeof (uiInitError));
+
+	hInstance = GetModuleHandle(NULL);
+	if (hInstance == NULL) {
+		loadLastError(err, "getting program HINSTANCE");
+		return err;
+	}
+
+	nCmdShow = SW_SHOWDEFAULT;
+	GetStartupInfoW(&si);
+	if ((si.dwFlags & STARTF_USESHOWWINDOW) != 0)
+		nCmdShow = si.wShowWindow;
+
+	hDefaultIcon = LoadIconW(NULL, IDI_APPLICATION);
+	if (hDefaultIcon == NULL) {
+		loadLastError(err, "loading default icon for window classes");
+		return err;
+	}
+	hDefaultCursor = LoadCursorW(NULL, IDC_ARROW);
+	if (hDefaultCursor == NULL) {
+		loadLastError(err, "loading default cursor for window classes");
+		return err;
+	}
+
+	if (registerWindowClass(hDefaultIcon, hDefaultCursor) == 0) {
+		loadLastError(err, "registering uiWindow window class");
+		return err;
+	}
+
+	ZeroMemory(&ncm, sizeof (NONCLIENTMETRICSW));
+	ncm.cbSize = sizeof (NONCLIENTMETRICSW);
+	if (SystemParametersInfoW(SPI_GETNONCLIENTMETRICS, sizeof (NONCLIENTMETRICSW), &ncm, sizeof (NONCLIENTMETRICSW)) == 0) {
+		loadLastError(err, "getting default fonts");
+		return err;
+	}
+	hMessageFont = CreateFontIndirectW(&(ncm.lfMessageFont));
+	if (hMessageFont == NULL) {
+		loadLastError(err, "loading default messagebox font; this is the default UI font");
+		return err;
+	}
+
+	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);
+}