07
Dec
2009

Simple Win32 Window

I seem to always need this skeleton code to build a window but I can never seem to memorize the whole thing. I figured I would post it here to make it easier for me to find. The #programa comments are not cross platform and only work on Microsoft based compilers, so watch out. 


/**
 * SimpleWindow v1.0
 * @file
 *
 * 09-24-2008:        JPH - Created.
 *
 * @author Jacob Hammack
 */
 
#include 
 
/**
 * Forces the compiler to link these libraries
 *
 */
#pragma comment(lib, "user32.lib")
#pragma comment(lib, "gdi32.lib")
#pragma comment(lib, "kernel32.lib")
 
/**
 * WindowsMessageLoop processes 
 *
 * @author Jacob Hammack
 */
LRESULT CALLBACK WindowsMessageLoop(HWND WindowHandle, UINT Message, WPARAM WindowParameters, LPARAM MoreWindowsParameters)
{
        switch(Message)
        {
                case WM_CREATE:
                        return 0;
 
                case WM_PAINT:
                        return 0;
 
                case WM_SIZE:
                        return 0;
 
                case WM_DESTROY:
                        PostQuitMessage(0);
                        return 0;
        }
 
        return DefWindowProc(WindowHandle, Message, WindowParameters, MoreWindowsParameters);
}
 
/**
 * WinMain is the main() equivilent for a windows program, execution starts here.
 *
 * @author Jacob Hammack
 */
int WINAPI WinMain (HINSTANCE CurrentInstance, HINSTANCE PreviousInstance,  PSTR CommandLine, int CommandShow)
{
        static TCHAR ApplicationName[] = TEXT("SimpleWindow");
        HWND WindowHandle;
        MSG Message;
        WNDCLASS WindowsClass;
 
        WindowsClass.style = CS_HREDRAW | CS_VREDRAW;
        WindowsClass.lpfnWndProc = WindowsMessageLoop;
        WindowsClass.cbClsExtra = 0;
        WindowsClass.cbWndExtra = 0;
        WindowsClass.hInstance = CurrentInstance;
        WindowsClass.hIcon = LoadIcon(NULL, IDI_APPLICATION);
        WindowsClass.hCursor = LoadCursor(NULL, IDC_ARROW);
        WindowsClass.hbrBackground = (HBRUSH) GetStockObject(WHITE_BRUSH);
        WindowsClass.lpszMenuName = NULL;
        WindowsClass.lpszClassName = ApplicationName;
 
        if(!RegisterClass(&WindowsClass))
        {
                MessageBox(NULL, TEXT("Unable to create a window."), ApplicationName, MB_ICONERROR);
 
                return 0;
        }
 
    WindowHandle = CreateWindow(ApplicationName,        /* Window Class Name*/
                                TEXT("Simple Window"),  /* Window Caption */
                                WS_OVERLAPPEDWINDOW,    /* Window Style*/
                                CW_USEDEFAULT,          /* Initial X position*/
                                CW_USEDEFAULT,          /* Initial Y position */
                                300,                    /* Initial Width of the window*/
                                100,                    /* Initial Height of the window */
                                NULL,                   /* Parent Window Handle */
                                NULL,                   /* Window Menu Handle */
                                CurrentInstance,        /* Instance of the Program Handle*/
                                NULL);                  /* Window Creation Parameters */
 
        ShowWindow(WindowHandle, CommandShow);
        UpdateWindow(WindowHandle);
 
        while(GetMessage(&Message, NULL, 0, 0))
        {
                TranslateMessage(&Message);
                DispatchMessage(&Message);
        }
 
        return Message.wParam;
}



CC=cl
CFLAGS= /nologo /MT /O2 /TC
LINKS=/link /OUT:simplewindow.exe /SUBSYSTEM:WINDOWS
 
all: simplewindow 
 
simplewindow: simplewindow.c
        $(CC) $(CFLAGS) simplewindow.c $(LINKS)
 
clean:
        del *.exe; del *.obj

a_window_00