From 1b7dc4a28ca101a24fcdaae9ff506210ed15fa4f Mon Sep 17 00:00:00 2001
From: Pietro Gagliardi <pietro10@mac.com>
Date: Thu, 9 Oct 2014 10:11:36 -0400
Subject: [PATCH] Wrote the initial implementaiton of a Windows Popover.

---
 windowspopover/main.c | 91 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 91 insertions(+)
 create mode 100644 windowspopover/main.c

diff --git a/windowspopover/main.c b/windowspopover/main.c
new file mode 100644
index 0000000..c733507
--- /dev/null
+++ b/windowspopover/main.c
@@ -0,0 +1,91 @@
+// 9 october 2014
+#define UNICODE
+#define _UNICODE
+#define STRICT
+#define STRICT_TYPED_ITEMIDS
+// get Windows version right; right now Windows XP
+#define WINVER 0x0501
+#define _WIN32_WINNT 0x0501
+#define _WIN32_WINDOWS 0x0501		/* according to Microsoft's winperf.h */
+#define _WIN32_IE 0x0600			/* according to Microsoft's sdkddkver.h */
+#define NTDDI_VERSION 0x05010000	/* according to Microsoft's sdkddkver.h */
+#include <windows.h>
+#include <commctrl.h>
+#include <stdint.h>
+#include <uxtheme.h>
+#include <string.h>
+#include <wchar.h>
+#include <windowsx.h>
+#include <vsstyle.h>
+#include <vssym32.h>
+
+HWND popover;
+
+LRESULT CALLBACK wndproc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
+{
+	switch (uMsg) {
+	case WM_COMMAND:
+		if (HIWORD(wParam) == BN_CLICKED && LOWORD(wParam) == 100) {
+			MoveWindow(popover, 50, 50,  200, 200, TRUE);
+			ShowWindow(popover, SW_SHOW);
+			UpdateWindow(popover);
+			return 0;
+		}
+		break;
+	case WM_CLOSE:
+		PostQuitMessage(0);
+		return 0;
+	}
+	return DefWindowProcW(hwnd, uMsg, wParam, lParam);
+}
+
+int main(int argc, char *argv[])
+{
+	WNDCLASSW wc;
+	HWND mainwin, button;
+	MSG msg;
+
+	ZeroMemory(&wc, sizeof (WNDCLASSW));
+	wc.lpszClassName = L"popover";
+	wc.lpfnWndProc = DefWindowProcW;
+	wc.hbrBackground = (HBRUSH) (COLOR_BTNFACE + 1);
+	wc.style = CS_DROPSHADOW | CS_NOCLOSE;
+	if (RegisterClassW(&wc) == 0)
+		abort();
+	popover = CreateWindowExW(WS_EX_TOPMOST,
+		L"popover", L"",
+		WS_POPUP | WS_BORDER,
+		0, 0, 150, 100,
+		NULL, NULL, NULL, NULL);
+	if (popover == NULL)
+		abort();
+
+	ZeroMemory(&wc, sizeof (WNDCLASSW));
+	wc.lpszClassName = L"mainwin";
+	wc.lpfnWndProc = wndproc;
+	wc.hbrBackground = (HBRUSH) (COLOR_BTNFACE + 1);
+	if (RegisterClassW(&wc) == 0)
+		abort();
+	mainwin = CreateWindowExW(0,
+		L"mainwin", L"Main Window",
+		WS_OVERLAPPEDWINDOW,
+		0, 0, 150, 100,
+		NULL, NULL, NULL, NULL);
+	if (mainwin == NULL)
+		abort();
+	button = CreateWindowExW(0,
+		L"button", L"Click Me",
+		BS_PUSHBUTTON | WS_CHILD | WS_VISIBLE,
+		20, 20, 100, 40,
+		mainwin, (HMENU) 100, NULL, NULL);
+	if (button == NULL)
+		abort();
+	ShowWindow(mainwin, SW_SHOWDEFAULT);
+	if (UpdateWindow(mainwin) == 0)
+		abort();
+	while (GetMessageW(&msg, NULL, 0, 0) > 0) {
+		TranslateMessage(&msg);
+		DispatchMessageW(&msg);
+	}
+	return 0;
+}