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January 10, 2014 15:26
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Simple Window application in Win32
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/ GT_HelloWorldWin32.cpp | |
// compile with: /D_UNICODE /DUNICODE /DWIN32 /D_WINDOWS /c | |
#include <windows.h> | |
#include <stdlib.h> | |
#include <string.h> | |
#include <tchar.h> | |
// Global variables | |
// The main window class name. | |
static TCHAR szWindowClass[] = _T("win32app"); | |
// The string that appears in the application's title bar. | |
static TCHAR szTitle[] = _T("Win32 Guided Tour Application"); | |
HINSTANCE hInst; | |
// Forward declarations of functions included in this code module: | |
LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM); | |
int WINAPI WinMain(HINSTANCE hInstance, | |
HINSTANCE hPrevInstance, | |
LPSTR lpCmdLine, | |
int nCmdShow) | |
{ | |
WNDCLASSEX wcex; | |
wcex.cbSize = sizeof(WNDCLASSEX); | |
wcex.style = CS_HREDRAW | CS_VREDRAW; | |
wcex.lpfnWndProc = WndProc; | |
wcex.cbClsExtra = 0; | |
wcex.cbWndExtra = 0; | |
wcex.hInstance = hInstance; | |
wcex.hIcon = LoadIcon(hInstance, MAKEINTRESOURCE(IDI_APPLICATION)); | |
wcex.hCursor = LoadCursor(NULL, IDC_ARROW); | |
wcex.hbrBackground = (HBRUSH)(COLOR_WINDOW+1); | |
wcex.lpszMenuName = NULL; | |
wcex.lpszClassName = szWindowClass; | |
wcex.hIconSm = LoadIcon(wcex.hInstance, MAKEINTRESOURCE(IDI_APPLICATION)); | |
if (!RegisterClassEx(&wcex)) | |
{ | |
MessageBox(NULL, | |
_T("Call to RegisterClassEx failed!"), | |
_T("Win32 Guided Tour"), | |
NULL); | |
return 1; | |
} | |
hInst = hInstance; // Store instance handle in our global variable | |
// The parameters to CreateWindow explained: | |
// szWindowClass: the name of the application | |
// szTitle: the text that appears in the title bar | |
// WS_OVERLAPPEDWINDOW: the type of window to create | |
// CW_USEDEFAULT, CW_USEDEFAULT: initial position (x, y) | |
// 500, 100: initial size (width, length) | |
// NULL: the parent of this window | |
// NULL: this application does not have a menu bar | |
// hInstance: the first parameter from WinMain | |
// NULL: not used in this application | |
HWND hWnd = CreateWindow( | |
szWindowClass, | |
szTitle, | |
WS_OVERLAPPEDWINDOW, | |
CW_USEDEFAULT, CW_USEDEFAULT, | |
500, 100, | |
NULL, | |
NULL, | |
hInstance, | |
NULL | |
); | |
if (!hWnd) | |
{ | |
MessageBox(NULL, | |
_T("Call to CreateWindow failed!"), | |
_T("Win32 Guided Tour"), | |
NULL); | |
return 1; | |
} | |
// The parameters to ShowWindow explained: | |
// hWnd: the value returned from CreateWindow | |
// nCmdShow: the fourth parameter from WinMain | |
ShowWindow(hWnd, | |
nCmdShow); | |
UpdateWindow(hWnd); | |
// Main message loop: | |
MSG msg; | |
while (GetMessage(&msg, NULL, 0, 0)) | |
{ | |
TranslateMessage(&msg); | |
DispatchMessage(&msg); | |
} | |
return (int) msg.wParam; | |
} | |
// | |
// FUNCTION: WndProc(HWND, UINT, WPARAM, LPARAM) | |
// | |
// PURPOSE: Processes messages for the main window. | |
// | |
// WM_PAINT - Paint the main window | |
// WM_DESTROY - post a quit message and return | |
// | |
// | |
LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) | |
{ | |
PAINTSTRUCT ps; | |
HDC hdc; | |
TCHAR greeting[] = _T("Hello, World!"); | |
switch (message) | |
{ | |
case WM_PAINT: | |
hdc = BeginPaint(hWnd, &ps); | |
// Here your application is laid out. | |
// For this introduction, we just print out "Hello, World!" | |
// in the top left corner. | |
TextOut(hdc, | |
5, 5, | |
greeting, _tcslen(greeting)); | |
// End application-specific layout section. | |
EndPaint(hWnd, &ps); | |
break; | |
case WM_DESTROY: | |
PostQuitMessage(0); | |
break; | |
default: | |
return DefWindowProc(hWnd, message, wParam, lParam); | |
break; | |
} | |
return 0; | |
} |
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Hi, I would like to translate this MAKEINTRESOURCE macro into another language called Nelua. It's a transpiler which compiles code to C.
(LPTSTR) ((DWORD) ((WORD) (i))) this means, first I convert the id number into a WORD. Then into a DWORD, then into an LPTSTR. Okay ?