Skinning Tutorials

[AAG]

Ok I don't know why this isn't working. It was working when I tried it a while back. here's my code.

#include <windows.h>
#include "resource.h"

static char g_szClassName[] = "MyWindowClass";
static HINSTANCE g_hInst = NULL;

HBITMAP MainBitmap;

LRESULT CALLBACK WndProc(HWND hwnd, UINT Message, WPARAM wParam, LPARAM lParam)
{
   switch(Message)
   {
      case WM_CREATE:
         MainBitmap= LoadBitmap(g_hInst, "MAIN_BITMAP");
         if(!MainBitmap){
            MessageBox(hwnd, "Resource Loading failed.", "Oops",
               MB_OK | MB_ICONEXCLAMATION);
         }
      break;
      case WM_PAINT:
         if(MainBitmap)
         {
            PAINTSTRUCT ps;
            HDC hdcMemory, hdcWindow;
            BITMAP bm;

            hdcWindow = BeginPaint(hwnd, &ps);
            hdcMemory = CreateCompatibleDC(hdcWindow);

            SelectObject(hdcMemory, MainBitmap);
            GetObject(MainBitmap, sizeof(bm), &bm);
            
            BitBlt(hdcWindow, 0, 0, bm.bmWidth, bm.bmHeight, hdcMemory, 0, 0, SRCCOPY);
            DeleteDC(hdcMemory);
            EndPaint(hwnd, &ps);
         }
      break;
      case WM_CLOSE:
         DestroyWindow(hwnd);
      break;
      case WM_DESTROY:
         DeleteObject(MainBitmap);
         PostQuitMessage(0);
      break;
      default:
         return DefWindowProc(hwnd, Message, wParam, lParam);
   }
   return 0;
}


int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,
   LPSTR lpCmdLine, int nCmdShow)
{
   WNDCLASSEX WndClass;
   HWND hwnd;
   MSG Msg;

   g_hInst = hInstance;

   WndClass.cbSize        = sizeof(WNDCLASSEX);
   WndClass.style         = NULL;
   WndClass.lpfnWndProc   = WndProc;
   WndClass.cbClsExtra    = 0;
   WndClass.cbWndExtra    = 0;
   WndClass.hInstance     = g_hInst;
   WndClass.hIcon         = LoadIcon(NULL, IDI_APPLICATION);
   WndClass.hCursor       = LoadCursor(NULL, IDC_ARROW);
   WndClass.hbrBackground = (HBRUSH)(COLOR_BTNFACE+1);
   WndClass.lpszMenuName  = NULL;
   WndClass.lpszClassName = g_szClassName;
   WndClass.hIconSm       = LoadIcon(NULL, IDI_APPLICATION);

   if(!RegisterClassEx(&WndClass))
   {
      MessageBox(0, "Could Not Register Window", "Oops",
         MB_ICONEXCLAMATION | MB_OK | MB_SYSTEMMODAL);
      return 0;
   }

   hwnd = CreateWindowEx(
      WS_EX_CLIENTEDGE,
      g_szClassName,
      "Test",
      WS_OVERLAPPEDWINDOW,
      CW_USEDEFAULT, CW_USEDEFAULT, 320, 240,
      NULL, NULL, g_hInst, NULL);

   if(hwnd == NULL)
   {
      MessageBox(0, "ERROR Window Was Not Created", "Oops",
         MB_ICONEXCLAMATION | MB_OK | MB_SYSTEMMODAL);
      return 0;
   }

   ShowWindow(hwnd, nCmdShow);
   UpdateWindow(hwnd);

   while(GetMessage(&Msg, NULL, 0, 0))
   {
      TranslateMessage(&Msg);
      DispatchMessage(&Msg);
   }
   return Msg.wParam;
}

I've also inlcuded the project that I did. Its probably the wrong way to do bitblt or something in c++. I forgot where I learned this, I think it was from winprog.org, but not sure.