[Windows Mobile Development and Hacking General] NuShrike:
Following up from post getting OT in thread:

You might be missing some of the modern WM6 calls. Here's the relevant code from the working ported version of Graphics for the Masses.

I started with working code from the AppWizard. tabs/spaces is pushing the formatting everywhere:

int WINAPI WinMain(HINSTANCE hInstance,
HINSTANCE hPrevInstance,
LPTSTR lpCmdLine,
int nCmdShow)
{
MSG msg;
HACCEL hAccelTable;
int retval;

// Perform application initialization:
if (!InitInstance(hInstance, nCmdShow))
{
return FALSE;
}

hAccelTable = LoadAccelerators(hInstance, MAKEINTRESOURCE(IDC_APPSTUFF));

// Main message loop:
for(;;)
{
switch(gMinimized_mode)
{
case 0:
game_loop:
while (PeekMessage(&msg, NULL, 0, 0, PM_NOREMOVE) == TRUE)
{
if (GetMessage(&msg, NULL, 0, 0) )
{
if (!TranslateAccelerator(msg.hwnd, hAccelTable, &msg))
{
TranslateMessage(&msg);
DispatchMessageW(&msg);
}
}
else
{
retval = (int) msg.wParam;
goto out;
}
}

if (!gMinimized_mode)
{
/* app code */
eglSwapBuffers (eglDisplay, eglWindowSurface);
if(retval == 0)
{
/* app exit code */
goto out;
}
}
break;
default:
while (GetMessage(&msg, NULL, 0, 0) )
{
if (!TranslateAccelerator(msg.hwnd, hAccelTable, &msg))
{
TranslateMessage(&msg);
DispatchMessageW(&msg);
}
if (msg.message == WM_PAINT)
{
gMinimized_mode = 0;
goto game_loop;
}
}
retval = (int) msg.wParam;
goto out;
}
}
out:
return retval;
}

ATOM MyRegisterClass(HINSTANCE hInstance, LPTSTR szWindowClass)
{
WNDCLASS wc;

wc.style = CS_HREDRAW | CS_VREDRAW;
wc.lpfnWndProc = WndProc;
wc.cbClsExtra = 0;
wc.cbWndExtra = 0;
wc.hInstance = hInstance;
wc.hIcon = LoadIcon(hInstance, MAKEINTRESOURCE(IDI_APPSTUFF));
wc.hCursor = 0;
wc.hbrBackground = NULL;//(HBRUSH) GetStockObject(WHITE_BRUSH);
wc.lpszMenuName = 0;
wc.lpszClassName = szWindowClass;

return RegisterClass(&wc);
}

BOOL InitInstance(HINSTANCE hInstance, int nCmdShow)
{
HWND hWnd;
TCHAR szTitle[MAX_LOADSTRING];	// title bar text
TCHAR szWindowClass[MAX_LOADSTRING];	// main window class name

g_hInst = hInstance; // Store instance handle in our global variable

// SHInitExtraControls should be called once during your application's initialization to initialize any
// of the device specific controls such as CAPEDIT and SIPPREF.
SHInitExtraControls();

//LoadString(hInstance, IDS_APP_TITLE, szTitle, MAX_LOADSTRING);
wcscpy(szTitle, appName);
LoadString(hInstance, IDC_OGLESEXFW, szWindowClass, MAX_LOADSTRING);

//If it is already running, then focus on the window, and exit
hWnd = FindWindow(szWindowClass, szTitle);
if (hWnd)
{
// set focus to foremost child window
// The "| 0x00000001" is used to bring any owned windows to the foreground and
// activate them.
SetForegroundWindow((HWND)((ULONG) hWnd | 0x00000001));
return 0;
}

if (!MyRegisterClass(hInstance, szWindowClass))
{
return FALSE;
}

hWnd = CreateWindow(szWindowClass, szTitle, WS_VISIBLE,
CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, NULL, NULL, hInstance, NULL);

if (!hWnd)
{
return FALSE;
}

// When the main window is created using CW_USEDEFAULT the height of the menubar (if one
// is created is not taken into account). So we resize the window after creating it
// if a menubar is present
if (g_hWndMenuBar)
{
RECT rc;
RECT rcMenuBar;

GetWindowRect(hWnd, &rc);
GetWindowRect(g_hWndMenuBar, &rcMenuBar);
rc.bottom -= (rcMenuBar.bottom - rcMenuBar.top);

MoveWindow(hWnd, rc.left, rc.top, rc.right-rc.left, rc.bottom-rc.top, FALSE);
}

ShowWindow(hWnd, nCmdShow);
UpdateWindow(hWnd);

{
/* EGL Setup */
EGLContext ctx;
EGLint majorVersion;
EGLint minorVersion;

//eglDisplay = eglGetDisplay(EGL_DEFAULT_DISPLAY);
eglDisplay = eglGetDisplay(GetDC(hWnd));
eglInitialize(eglDisplay, &majorVersion, &minorVersion);
eglConfig = select_config(eglDisplay, EGL_WINDOW_BIT, 16, 16, 4);
ctx = eglCreateContext(eglDisplay, eglConfig, NULL, NULL);
eglWindowSurface = eglCreateWindowSurface(eglDisplay, eglConfig, hWnd, NULL);
eglMakeCurrent(eglDisplay, eglWindowSurface, eglWindowSurface, ctx);
/* rest of app init */
}

return TRUE;
}

LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
int wmId, wmEvent;
PAINTSTRUCT ps;
HDC hdc;

static SHACTIVATEINFO s_sai;

switch (message)
{
case WM_COMMAND:
wmId = LOWORD(wParam);
wmEvent = HIWORD(wParam);
// Parse the menu selections:
switch (wmId)
{
case IDM_HELP_ABOUT:
DialogBox(g_hInst, (LPCTSTR)IDD_ABOUTBOX, hWnd, About);
break;
case IDM_OK:
SendMessage (hWnd, WM_CLOSE, 0, 0);
break;
default:
return DefWindowProc(hWnd, message, wParam, lParam);
}
break;
case WM_CREATE:
{
SHMENUBARINFO mbi;

memset(&mbi, 0, sizeof(SHMENUBARINFO));
mbi.cbSize = sizeof(SHMENUBARINFO);
mbi.hwndParent = hWnd;
mbi.nToolBarId = IDR_MENU;
mbi.hInstRes = g_hInst;

if (!SHCreateMenuBar(&mbi))
{
g_hWndMenuBar = NULL;
}
else
{
g_hWndMenuBar = mbi.hwndMB;
}

// Initialize the shell activate info structure
memset(&s_sai, 0, sizeof (s_sai));
s_sai.cbSize = sizeof (s_sai);
}
break;
case WM_PAINT:
hdc = BeginPaint(hWnd, &ps);
// TODO: Add any drawing code here...
EndPaint(hWnd, &ps);
if (!gMinimized_mode) eglSwapBuffer();
break;
case WM_DESTROY:
eglMakeCurrent(NULL, NULL, NULL, NULL);
eglDestroyContext(eglDisplay, eglContext);
eglDestroySurface(eglDisplay, eglWindowSurface);
eglTerminate(eglDisplay);

CommandBar_Destroy(g_hWndMenuBar);
PostQuitMessage(0);
break;

case WM_SIZE:
switch(wParam)
{
case SIZE_MINIMIZED:
gMinimized_mode = 1;
break;
case SIZE_MAXIMIZED: case SIZE_RESTORED: case SIZE_MAXSHOW:
gMinimized_mode = 0;
default:
{
RECT wrect;
GetClientRect(hwnd, &wrect);
/* app resize code */
break;
}
}
break;

case WM_ACTIVATE:
// Notify shell of our activate message
SHHandleWMActivate(hWnd, wParam, lParam, &s_sai, FALSE);
break;
case WM_SETTINGCHANGE:
SHHandleWMSettingChange(hWnd, wParam, lParam, &s_sai);
break;

case WM_KEYDOWN:
{
switch(wParam)
{
case(VK_UP):
break;
case(VK_DOWN):
break;
case(VK_LEFT):
break;
case(VK_RIGHT):
break;
case(VK_RETURN):
break;
}
if (wParam == VK_ESCAPE)
SendMessage(hwnd, WM_CLOSE, 0, 0);
break;
}

default:
return DefWindowProc(hWnd, message, wParam, lParam);
}
return 0;
}