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Simple Window Template

You can use this as a template for your Win32 Programs.

Submitted By: Mrafcho001

Actions:

Rating:

Views: 4,996

Language: C++

Last Modified: December 17, 2005

Instructions: Copy and Paste

Snippet

#include <windows.h>
// Step 4: the Window Procedure
LRESULT CALLBACK WndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
switch(msg)
{
case WM_CREATE:
break;
case WM_CLOSE:
DestroyWindow(hwnd);
break;
case WM_DESTROY:
PostQuitMessage(0);
break;
default:
return DefWindowProc(hwnd, msg, wParam, lParam);
}
return 0;
}
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,
LPSTR lpCmdLine, int nCmdShow)
{
WNDCLASSEX wc;
HWND hwnd;
MSG Msg;
static char appName[] = "Your Application";
//Step 1: Registering the Window Class
wc.cbSize = sizeof(WNDCLASSEX);
wc.style = CS_HREDRAW | CS_VREDRAW;
wc.lpfnWndProc = WndProc;
wc.cbClsExtra = 0;
wc.cbWndExtra = 0;
wc.hInstance = hInstance;
wc.hIcon = LoadIcon(NULL, IDI_APPLICATION);
wc.hCursor = LoadCursor(NULL, IDC_ARROW);
wc.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
wc.lpszMenuName = NULL;
wc.lpszClassName = appName;
wc.hIconSm = LoadIcon(NULL, IDI_APPLICATION);
if(!RegisterClassEx(&wc))
{
MessageBox(NULL, "Window Registration Failed!", "Error!",
MB_ICONERROR | MB_OK);
return 0;
}
// Step 2: Creating the Window
hwnd = CreateWindowEx(
WS_EX_CLIENTEDGE,
appName,
"Your Window Title",
WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT, CW_USEDEFAULT, 400, 400,
NULL, NULL, hInstance, NULL);
if(hwnd == NULL)
{
MessageBox(NULL, "Window Creation Failed!", "Error",
MB_ICONERROR | MB_OK);
return 0;
}
ShowWindow(hwnd, nCmdShow);
UpdateWindow(hwnd);
// Step 3: The Message Loop
while(GetMessage(&Msg, NULL, 0, 0) > 0)
{
TranslateMessage(&Msg);
DispatchMessage(&Msg);
}
return int(Msg.wParam);
}

Copy & Paste

#include <windows.h>

// Step 4: the Window Procedure
LRESULT CALLBACK WndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
     switch(msg)
     {
     case WM_CREATE:

break;
          case WM_CLOSE:
               DestroyWindow(hwnd);
          break;
          case WM_DESTROY:
               PostQuitMessage(0);
          break;
          default:
               return DefWindowProc(hwnd, msg, wParam, lParam);
     }
     return 0;
}

int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,
                         LPSTR lpCmdLine, int nCmdShow)
{
     WNDCLASSEX wc;
     HWND hwnd;
     MSG Msg;
     static char appName[] = "Your Application";

//Step 1: Registering the Window Class
     wc.cbSize           = sizeof(WNDCLASSEX);
     wc.style           = CS_HREDRAW | CS_VREDRAW;
     wc.lpfnWndProc      = WndProc;
     wc.cbClsExtra      = 0;
     wc.cbWndExtra      = 0;
     wc.hInstance      = hInstance;
     wc.hIcon           = LoadIcon(NULL, IDI_APPLICATION);
     wc.hCursor           = LoadCursor(NULL, IDC_ARROW);
     wc.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
     wc.lpszMenuName  = NULL;
     wc.lpszClassName = appName;
     wc.hIconSm           = LoadIcon(NULL, IDI_APPLICATION);

if(!RegisterClassEx(&wc))
     {
          MessageBox(NULL, "Window Registration Failed!", "Error!",
               MB_ICONERROR | MB_OK);
          return 0;
     }

// Step 2: Creating the Window
     hwnd = CreateWindowEx(
          WS_EX_CLIENTEDGE,
          appName,
          "Your Window Title",
          WS_OVERLAPPEDWINDOW,
          CW_USEDEFAULT, CW_USEDEFAULT, 400, 400,
          NULL, NULL, hInstance, NULL);

if(hwnd == NULL)
     {
          MessageBox(NULL, "Window Creation Failed!", "Error",
               MB_ICONERROR | MB_OK);
          return 0;
     }

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

// Step 3: The Message Loop
     while(GetMessage(&Msg, NULL, 0, 0) > 0)
     {
          TranslateMessage(&Msg);
          DispatchMessage(&Msg);
     }
     return int(Msg.wParam);
}

Comments
Pat234 2008-11-05 22:57:07
instead of stealing from the tutorial (without proper credit :( ) link to original: http://www.winprog.org/tutorial/simple_window.html