Add a very simple example of a Win32 application using wx DLL.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@62812 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

samples/dll/sdk_exe.cpp

@@ -0,0 +1,170 @@
+/////////////////////////////////////////////////////////////////////////////
+// Name:        samples/dll/my_exe.cpp
+// Purpose:     Sample showing how to use wx DLL from a Win32 application
+// Author:      Vadim Zeitlin
+// Created:     2009-12-07
+// RCS-ID:      $Id$
+// Copyright:   (c) 2009 Vadim Zeitlin <vadim@wxwidgets.org>
+// Licence:     wxWindows licence
+/////////////////////////////////////////////////////////////////////////////
+
+/*
+    This program is intentionally as simple as possible and shouldn't be seen
+    as an example of how to write a proper Win32 application (why should you
+    want to do this anyhow when you have wxWidgets). It's just a test bed for
+    the wx DLL which it uses.
+ */
+
+// ============================================================================
+// declarations
+// ============================================================================
+
+// ----------------------------------------------------------------------------
+// headers
+// ----------------------------------------------------------------------------
+
+#include <windows.h>
+#include <windowsx.h>
+
+#include <stdio.h>
+#include <tchar.h>
+
+#include "my_dll.h"
+
+namespace
+{
+
+// ----------------------------------------------------------------------------
+// constants
+// ----------------------------------------------------------------------------
+
+const TCHAR *MAIN_WIN_CLASS_NAME = _TEXT("my_exe_main_win_class");
+
+const int IDB_RUN_GUI_FROM_DLL = 100;
+
+// ----------------------------------------------------------------------------
+// globals
+// ----------------------------------------------------------------------------
+
+HINSTANCE g_hInstance;
+HWND g_hwndMain;
+
+// ============================================================================
+// implementation
+// ============================================================================
+
+// ----------------------------------------------------------------------------
+// callbacks
+// ----------------------------------------------------------------------------
+
+void
+OnCommand(HWND /* hwnd */, int id, HWND /* hwndCtl */, UINT /* codeNotify */)
+{
+    if ( id == IDB_RUN_GUI_FROM_DLL )
+    {
+        run_wx_gui_from_dll("child instance");
+    }
+}
+
+void OnDestroy(HWND hwnd)
+{
+    wx_dll_cleanup();
+
+    PostQuitMessage(0);
+}
+
+LRESULT CALLBACK MainWndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
+{
+    switch ( msg )
+    {
+        HANDLE_MSG(hwnd, WM_COMMAND, OnCommand);
+        HANDLE_MSG(hwnd, WM_DESTROY, OnDestroy);
+
+        default:
+            return DefWindowProc(hwnd, msg, wParam, lParam);
+    }
+
+    return 0;
+}
+
+// ----------------------------------------------------------------------------
+// initialization functions
+// ----------------------------------------------------------------------------
+
+bool RegisterMainClass()
+{
+    WNDCLASS wc;
+    ZeroMemory(&wc, sizeof(wc));
+    wc.style         = CS_DBLCLKS | CS_HREDRAW | CS_VREDRAW;
+    wc.lpfnWndProc   = MainWndProc;
+    wc.hInstance     = g_hInstance;
+    wc.hIcon         = LoadIcon(NULL, IDI_APPLICATION);
+    wc.hCursor       = LoadCursor(NULL, IDC_ARROW);
+    wc.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1);
+    wc.lpszClassName = MAIN_WIN_CLASS_NAME;
+
+    return RegisterClass(&wc) != 0;
+}
+
+bool CreateMainWindow()
+{
+    g_hwndMain = CreateWindow
+                 (
+                    MAIN_WIN_CLASS_NAME,
+                    _TEXT("Main Win32 app"),
+                    WS_OVERLAPPEDWINDOW,
+                    CW_USEDEFAULT, CW_USEDEFAULT,
+                    400, 300,
+                    NULL, NULL, g_hInstance, NULL
+                 );
+    if ( !g_hwndMain )
+        return false;
+
+    CreateWindow
+    (
+        _TEXT("static"),
+        _TEXT("Main Win32 application"),
+        WS_CHILD | WS_VISIBLE,
+        10, 10, 200, 30,
+        g_hwndMain, (HMENU)-1, g_hInstance, NULL
+    );
+
+    CreateWindow
+    (
+        _TEXT("button"),
+        _TEXT("Run GUI from DLL"),
+        WS_CHILD | WS_VISIBLE | BS_DEFPUSHBUTTON,
+        200, 200, 150, 35,
+        g_hwndMain, (HMENU)IDB_RUN_GUI_FROM_DLL, g_hInstance, NULL
+    );
+
+    return true;
+}
+
+} // anonymous namespace
+
+// ----------------------------------------------------------------------------
+// entry point
+// ----------------------------------------------------------------------------
+
+int APIENTRY WinMain(HINSTANCE hInstance, HINSTANCE, LPSTR, int nCmdShow)
+{
+    g_hInstance = hInstance;
+
+    if ( !RegisterMainClass() )
+        return 1;
+
+    if ( !CreateMainWindow() )
+        return 2;
+
+    ShowWindow(g_hwndMain, nCmdShow);
+
+    MSG msg;
+    while ( GetMessage(&msg, NULL, 0, 0) )
+    {
+        TranslateMessage(&msg);
+        DispatchMessage(&msg);
+    }
+
+    return 0;
+}