[core] basic dialog

* UAC elevation and Aero controls enabled

usbdos.c

@@ -0,0 +1,149 @@
+/*
+ * USBDOS: USB DOS bootable stick creation utility
+ * Copyright (c) 2011 Pete Batard <pete@akeo.ie>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <windows.h>
+#include <windowsx.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <commctrl.h>
+
+#include "msapi_utf8.h"
+#include "resource.h"
+#include "usbdos.h"
+
+/*
+ * Globals
+ */
+HINSTANCE main_instance;
+
+/*
+ * Main dialog callback
+ */
+static INT_PTR CALLBACK main_callback(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam)
+{
+	switch (message) {
+
+	case WM_DEVICECHANGE:
+		return (INT_PTR)TRUE;
+
+	case WM_INITDIALOG:
+		return (INT_PTR)TRUE;
+
+	case WM_COMMAND:
+		switch(LOWORD(wParam)) {
+		case IDC_CLOSE:
+			PostQuitMessage(0);
+			break;
+		default:
+			return (INT_PTR)FALSE;
+		}
+		return (INT_PTR)TRUE;
+
+	case WM_CLOSE:
+		PostQuitMessage(0);
+		break;
+
+	}
+	return (INT_PTR)FALSE;
+}
+
+/*
+ * Center a dialog with regards to the main application Window or the desktop
+ */
+void CenterDialog(HWND hDialog)
+{
+	POINT Point;
+	HWND hParent;
+	RECT DialogRect;
+	RECT ParentRect;
+	int nWidth;
+	int nHeight;
+
+	// Get the size of the dialog box.
+	GetWindowRect(hDialog, &DialogRect);
+
+	// Get the parent
+	hParent = GetParent(hDialog);
+	if (hParent == NULL) {
+		hParent = GetDesktopWindow();
+	}
+	GetClientRect(hParent, &ParentRect);
+
+	// Calculate the height and width of the current dialog
+	nWidth = DialogRect.right - DialogRect.left;
+	nHeight = DialogRect.bottom - DialogRect.top;
+
+	// Find the center point and convert to screen coordinates.
+	Point.x = (ParentRect.right - ParentRect.left) / 2;
+	Point.y = (ParentRect.bottom - ParentRect.top) / 2;
+	ClientToScreen(hParent, &Point);
+
+	// Calculate the new x, y starting point.
+	Point.x -= nWidth / 2;
+	Point.y -= nHeight / 2 + 35;
+
+	// Move the window.
+	MoveWindow(hDialog, Point.x, Point.y, nWidth, nHeight, FALSE);
+}
+
+/*
+ * Application Entrypoint
+ */
+int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
+{
+	HANDLE mutex = NULL;
+	HWND hDlg = NULL;
+	MSG msg;
+
+	// Prevent 2 applications from running at the same time
+	mutex = CreateMutexA(NULL, TRUE, "Global/USBDOS");
+	if ((mutex == NULL) || (GetLastError() == ERROR_ALREADY_EXISTS))
+	{
+		MessageBoxA(NULL, "Another USBDOS application is running.\n"
+			"Please close the first application before running another one.",
+			"Other instance detected", MB_ICONSTOP);
+		return 0;
+	}
+
+	// Save instance of the application for further reference
+	main_instance = hInstance;
+
+	// Initialize COM for folder selection
+	CoInitializeEx(NULL, COINIT_APARTMENTTHREADED);
+
+	// Create the main Window
+	if ( (hDlg = CreateDialogA(hInstance, MAKEINTRESOURCEA(IDD_DIALOG), NULL, main_callback)) == NULL ) {
+		MessageBoxA(NULL, "Could not create Window", "DialogBox failure", MB_ICONSTOP);
+		goto out;
+	}
+	CenterDialog(hDlg);
+	ShowWindow(hDlg, SW_SHOWNORMAL);
+	UpdateWindow(hDlg);
+
+	// Do our own event processing
+	while(GetMessage(&msg, NULL, 0, 0)) {
+		TranslateMessage(&msg);
+		DispatchMessage(&msg);
+	}
+
+out:
+	CloseHandle(mutex);
+
+	return 0;
+}